At Cartesian, you are faced directly with the problem of bringing people around the world closer together. Getting to solve such problems is an incredibly rewarding feeling, and combined with the fact that at Cartesian, everyone ideates and solves problem collaboratively, Cartesian truly was the best place for me to start my consulting journey at!
Our Team
Cartesian has over 150 staff across its offices in Europe and the US. Our team includes strategy analysts, data scientists, program managers, and engineers. Together, we solve some of the most difficult issues for our clients in the TMT sector.
Here you can meet some of our team. Get in touch to learn more.
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Abi George
Business Analyst
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Scott Appleton
Principal
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Aki Komatsu
Manager
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Peter Litsky
Senior Business Analyst
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Julia Emery
Senior Data Analyst
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Vito Morawetz
Vice President
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Emma Rons
Consultant
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Alan Schuh
Consultant
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Akhil Sontakke
Consultant
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Abe Westbrook
Consultant
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Samuel Kornstein, CFA
Managing Director, Strategy & Analytics
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Armaan Tandon
Data Analyst
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Ariana Moran
Consultant
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Damien Lee
Data Analyst
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Kathi Robards
Director, Contracts Admin. & Compliance
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Roger Peden
VP, Technology Delivery
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Andy Welch
Vice President
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Peter Esdaile
Senior Consultant
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Jim Serafin
CEO
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Julie Mendenhall
Sales Consultant
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Sarah Bloznalis
Content Analyst
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Tianhe Xie
Consultant
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Stefano Pedrazzi
Consultant
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Ron Angner
Senior Vice President
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Fred Brusseau
Graphics Manager
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Emily Pattison
Senior Business Analyst
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Martin Beattie
Senior Consultant
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Cree Mendoza
Help Desk I/Customer Service Rep
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Theresa Myers
Manager
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Simon Evans
Principal
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Lionel Tranchard
Content Security & Tech. Consulting
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Leah Fawzi
Senior Business Analyst
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Mei Lam
Security Assurance
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Brad Hoffman
Consultant
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Alistair Crook
Vice President
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David Davies
Vice President
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Craig Sambridge
VP, Technology Engineering
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Rishi Modha
Vice President
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Dale Reynolds
Vice President
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Don Zurawski
Vice President
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Madeleine Abdoh
Vice President, People & Operations
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Joanna Cline
Vice President, Human Resources
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Rohan Prabhakar
Senior Business Analyst
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Graham Harvey
Wi-Fi / Implementation
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Alex McGlue
Consultant
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Michael Dargue
Vice President
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Barry Eeles
Senior Consultant
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Mattia Janigro
Principal
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Rupali Shenoy
Senior Business Analyst
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Tommy Xiao
Business Analyst
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Stephanie Hansen
Financial Analyst
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Linda Xie
Business Analyst
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Lauren Sheppard
Consultant
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Georgie Crowther
Business Analyst
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Chris Quintin
Chief Operating Officer
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Sam Wildfire
Business Analyst
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Neal Paye
Vice President
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Kabir Khanna
Senior Business Analyst
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Mark Markowitz
Vice President
Giancarlo Ciraci
Consultant
Adam Beresford
Senior Consultant
Chris Churm
Principal Consultant
Ashton Craycraft
Business Analyst
James MacEwan
Principal Consultant
Vikram Chowdhary
Data Analyst
Abi George
Business Analyst
Scott Appleton
Principal
Scott is a Principal based in Cartesian’s London office and leads strategy engagements for service providers, network providers, technology vendors, regulators, and investors. Scott has 10+ years of experience in strategic advisory for the telecoms, digital media, and technology sectors.
His project expertise includes:
- Go-to-market strategy
- Market & competitive analysis
- Technology evaluation & strategy
- Network economics
- Customer & product experience analytics
- Commercial due diligence
- Fibre broadband
- Enterprise communications services
Prior to Cartesian, Scott has also worked at CSMG, Delta Partners, and Strategic Analytics. Scott received his MSci in Natural Sciences from the University of Cambridge.
Aki Komatsu
Manager
I chose to join (and rejoin) Cartesian for the great opportunities to develop my skills and career, the mentors to learn from, and the talented teammates to work with. Cartesian offers challenging and rewarding project work, limitless growth, and a collaborative and supportive environment. Come join us!
Peter Litsky
Senior Business Analyst
I decided to work at Cartesian because of the work culture that is offered. Everyone on the team has been very supportive of each other from helping bring newer hires up to speed on the work being done to lending a hand on a project they may have had experience with previously. It has created a collaborative environment that allows everyone to grow their skills and learn.
Julia Emery
Senior Data Analyst
I decided to work at Cartesian because of the potential to always be learning. Whether you are working on a long- or short-term project, there is always enthusiasm towards solving problems with new technology.
Vito Morawetz
Vice President
Vito leads product, technology and infrastructure strategy engagements for service providers and network operators. He has over 25 years of experience in the telecom sector, including 15 years in the industry.
Specific areas of Vito’s expertise include network and operational transformation, supplier selection and management, access and interconnect strategy, network optimisation, identification and delivery of cost reduction opportunities, mergers and acquisitions, and post-merger rationalisation.
Prior to Cartesian, Vito held executive positions in Network Strategy and Operations at Vodafone, Virgin Media, Cable and Wireless, and MCIWorldcom, and was a management consultant at DDV/Logica Consulting, CSMG, and BIS/Nynex.
He received a Degree in International Economics from Bocconi University in Milan.
Emma Rons
Consultant
I chose to work for Cartesian as the projects and clients looked particularly interesting and also a former colleague recommended Cartesian for their friendly and inclusive approach. I’ve been part of many different projects each with their own highlights and it’s always a pleasure to work with a great team of people. I’ve enjoyed time spent in Germany and many UK locations and, as well as the challenge of interesting projects, there often seems to be a hospitality venue to be discovered.
Jon Scrutton
Manager, HR
Alan Schuh
Consultant
My favorite part about Cartesian is the emphasis on growth. The team has prioritized my professional development through a built in mentorship program, and by providing opportunities for me to exercise skills from data analysis to policy research. As my first post college job, I could not be happier about both the work and culture!
Akhil Sontakke
Consultant
I chose to work for Cartesian because I was really interested in data analysis and visualizations. Since starting at Cartesian, I have learned so much more than just data analysis. I have learned how to effectively communicate my ideas and build compelling narratives that can solve business problems. I have gotten the opportunity to build client relationships and work collaboratively both with my fellow co-workers and our clients. My experience at Cartesian has been great and I look forward to continuing to grow my career here.
Abe Westbrook
Consultant
The friendly faces, the Dunkin runs, the occasional late nights. Sometimes it feels like a job, often it feels like something more.
Samuel Kornstein, CFA
Managing Director, Strategy & Analytics
Sam is Managing Director for Cartesian’s global Strategy & Analytics practice, with responsibilities for client development and engagement oversight.
He brings over ten years of experience advising clients on a broad range of strategic initiatives. He has worked with clients on topics including corporate strategy, product strategy, growth strategy, market analysis, data analysis and visualization, and predictive analytics.
Sam’s project expertise includes:
- Growth opportunity identification and execution
- Sales & Marketing strategy including realizing ROI through data driven test and learn programs
- Customer data analytics and customer lifecycle management programs
- Market strategy development and assessment
- Video and content-delivery business models
- Network investment strategy and cost modelling
- Regulatory policy assessment and development
Sam received his MBA from the MIT Sloan School of Management and his Bachelor of Science degree with Honors from the Boston University School of Management.
Contact Sam via the email below or at +1 617 999-1121
Armaan Tandon
Data Analyst
I chose to work at Cartesian because I am really interested in working with tools to analyze and visualize data. Since working at Cartesian, I have had a chance to maximize my professional growth as I am surrounded by smart, supportive teammates in a fun and collaborative environment.
Ariana Moran
Consultant
I was excited to join Cartesian, to work with a team of insightful, supportive professionals to build tailored, innovative solutions for our clients and the future of their businesses.
Matt Schwartz
Consultant
Damien Lee
Data Analyst
I chose to work at Cartesian because of the opportunity to take greater responsibility at an early stage of my career. Coupled with the inclusive culture, this allows me to develop my professional skills more quickly than I would at another firm.
Abdul Noor
Senior Consultant
Kathi Robards
Director, Contracts Admin. & Compliance
Kathi has been with Cartesian since February 2008 and handles Cartesian’s client and vendor contract management, governmental compliance filings, the company’s global insurance package, and various administrative tasks.
Prior to her work with Cartesian, Kathi served several years as a public servant with the City of Prairie Village, Kansas in the Administration department and with the City of Leawood, Kansas in the Parks and Recreation and Public Works departments. Her public administration career culminated after nearly 13 years as City Administrator/City Clerk for the City of Fairway, Kansas, where she served as a member of executive management and held several titles including Finance Officer, Human Resources Director, Administration Department Director, and Planning and Zoning and Floodplain Administrator.
Kathi holds a Bachelor of Science in Business with a double major in Business Administration and Management from Emporia State University.
Roger Peden
VP, Technology Delivery
Roger is responsible for the delivery and operations of Cartesian’s software solution portfolio. This includes Cartesian’s own Ascertain® platform and products as well as select third party packages, which support the assurance, BSS and point solution needs of our customers, utilising both on-premise and fully managed delivery models. The delivery team is responsible for the full end-to-end project lifecycle from pre-sales through to in-life operations.
Roger has nearly 30 years experience of software delivery in the telecommunications industry, supplying and supporting successful installations that to provide long term customer value. Prior to Cartesian he worked for Logica on a number of telecoms billing delivery engagements, and at Three UK in a BSS delivery role.
Fara Razally
WiFi Test Consultant
Andy Welch
Vice President
Andy is leading strategy engagements in the 5G and cellular space. 5G is enabling the biggest set of disruptive changes in telecoms for many years creating opportunities for new use cases, business models and services.
Andy was recently Technical Director at the UK’s largest 5G testbed in the West Midlands covering urban deployment, use case trials and enterprise engagement. Prior to that he held several permanent, interim and consulting roles in strategy and architecture for telecoms companies such as O2, Cable and Wireless, Vodafone, EE, Meteor, Eircom and others.
During that time he’s led work on:
- Technology programmes for acquisitions and divestments
- National network sharing agreements
- Network performance leadership
- National cellular rollouts
- MVNO startups
- Pan-European deployments
Peter Esdaile
Senior Consultant
I joined Cartesian after several years working with them as a contractor, seeing the benefits of working with enthusiastic professional teams who are trusted by customers to lead complex projects.
Jim Serafin
CEO
Jim is responsible for operational oversight across all divisions of Cartesian. He also directly leads all North American operations.
Jim’s information technology services career began in the 1980’s as a senior technology engineer at EDS, servicing large systems development efforts at large telecom clients. After spending 9 years progressing from senior technology leadership into account executive leadership at EDS, Jim founded the technology services firm Emerald Solutions in 1997 and grew it to over 100 employees in 3 years before selling the business (2001) to the private equity backed technology firm SBI Holdings, Inc. He integrated the firm into SBI Holdings and was CEO and President of the Corporate Performance Management and Integrated Marketing divisions of the company. While there, Jim led the acquisition and integration of over 20 public and private firms into the enterprise and built the eventual business into a $200M entity from 2001 to 2006. In 2007, Jim sold the Corporate Performance Management division to another services firm, Enterpulse, and was named President and Chief Operating Officer from 2006-2008. He was responsible for sales, marketing, and operations across the US. The firm concentrated on delivering large-scale CRM initiatives, large data stores programs, and ERP solutions across multiple industries, and was a key strategic partner for such firms as Oracle and Interwoven in these domain spaces. Growth was achieved across a diverse F1000 suite of businesses concentrated in the US. The firm was sold to an offshore technology firm looking to establish a US-based presence in 2008.
After leaving Enterpulse, Jim founded and operated multiple diverse enterprises, leveraging his technology background expertise and M&A experience. In 2008, Jim founded a fuels distribution business concentrated on the East Coast and focused on “wet” and “dry” delivery services. Simultaneously, he founded and operated a building maintenance and electrical services firm providing life cycle build, repair, and maintenance services for the imbedded infrastructure of large multi-state companies. The company services diverse clients such as Ahold USA (Giant Markets Division), Weiss Markets, Raymour&Flanigan (commercial real estate and retail divisions), and Sheetz MiniMarkets (over 500 gas stations located in 5 states). After exiting his partnership in these firms in 2016 to join Cartesian, the companies continue to operate and grow as independent private firms.
Jim graduated with Honors from Villanova University (Mathematics) and Lehigh University (Mathematics).
Julie Mendenhall
Sales Consultant
I started out as an Assembler programmer for the IRS, moving over to AT&T where I learned telephony billing and billing system migrations. At AT&T, I was able to experience every aspect of IT and the SDLC, from requirements through design, programming, and testing. I was also involved in training both trainers and end users. After leaving AT&T, I went to Convergys (formally CBIS) where I learned both wireless and cable billing and earned my Project Management Professional certification. Leaving Convergys in 2006, I joined TMNG (now Cartesian) and worked almost exclusively in the Cable Billing area. I retired in 2021 as a Vice President of Sales but I have decided to “semi-retire” and have rejoined Cartesian as a Sales Consultant.
Shikha Tiwari
Senior Consultant
Sarah Bloznalis
Content Analyst
My favorite part about working at Cartesian is the collaborative and welcoming environment. As soon as I joined, I immediately felt comfortable sharing my ideas and thoughts, which has made jumping into work a great experience for me!
Tianhe Xie
Consultant
I chose to work for Cartesian because I wanted to apply the skills that I learnt from my general consultancy role to a specialised focus. It is great to be surrounded by people who are super passionate and experienced in the TMT sector, and I enjoy the opportunity to discover trends in this fast-moving industry while performing in-depth analysis to support client growth within the Cartesian team.
Stefano Pedrazzi
Consultant
Since joining Cartesian, I had the opportunity to learn how to leverage advanced analytics to solve telecom companies’ strategic challenges. The workplace culture of Cartesian is collaborative and rewarding. Everyone aims at supporting your professional development every step of the way.
Ron Angner
Senior Vice President
Ron is an SVP of Network and Operations. He leads the Sales Support & Delivery team at Cartesian. In this capacity, he serves as General Manager of the Cartesian OSS/BSS practice and is Cartesian’s senior Operations Executive.
Ron has over 25 years of experience in the telecommunications industry and possesses hands-on operational and management experience in nearly every discipline within the industry including, strategy, marketing, network planning, product/service design and implementation, customer premises equipment servicing strategy, billing and customer care.
Prior to Cartesian, Ron held executive and director-level positions at Lucent, Bell Labs, AT&T and CSG Systems, and was managing director for several international operations in Europe. During Ron’s tenure at Bell Labs, he gained significant experience in the specification, design, development, and deployment of OSS/BSS platforms. He was also managing director for several international operations in Europe. At AT&T, Ron served as AT&T’s Chief Architect for the Long Distance and Special/Services networks.
These experiences have led Ron to success at Cartesian where he has managed the development of the Cartesian MVNE platform, including the OSS/BSS architecture, partner interfaces and the control framework and dashboards; led an OSS/BSS integration for two leading competitive local exchange carriers (CLECs); and managed multiple revenue assurance engagements.
Ron received his PhD in Engineering, as well as an MSEE, from Columbia University. He also holds a BSEE from Drexel University.
Lauren Paredes
Data Analyst
Fred Brusseau
Graphics Manager
Cartesian operates in an industry that is dynamic and interesting, and one that affects how people interact with each other and the world around them. Cartesian also has a great track record of hiring smart people that are fun to work with. Those are just a couple of the reasons I’ve been with the firm for as long as I have.
Emily Pattison
Senior Business Analyst
My favorite stage of a project is the beginning. My team and I have this ‘Bring it on!’ mentality that makes diving into new material really exciting.
Megan Corriveau
Consultant
Martin Beattie
Senior Consultant
I have worked with Cartesian over the past 14 years, firstly as a customer receiving excellent quality people to help deliver my projects and then as an associate myself and now most recently converting to an employee, as a Senior Consultant. The projects I have worked on have been large complex projects and all part of a larger programme of work. These have significant impact to the UK public and carry great importance with each deliverable. Most enjoyably, I get to work with an excellent team of professionals who get the job done.
The time I spend interacting with my colleagues to solve problems for our client, is my favourite part of the day.
The new office location is near a vibrant street food market so it is possible to eat excellent food, reasonably priced, from all over the world on our doorstep. In one week you can cover multiple Asian food styles (i.e. Korean, Japanese or Chinese) and South American styles (i.e. Brazilian & Argentinian) along with traditional BBQ food, British Roasts or Spanish Paella and much, much more…
The Cartesian culture is an ethical one, aimed at delivering value for our clients, whilst we grow the business. Through all of this we have a supportive team and we aim to have fun along the way.
Cree Mendoza
Help Desk I/Customer Service Rep
I’ve been with Cartesian 10 amazing years working with clients and fulfilling assistance via our help desk support group. I thoroughly enjoy growing with my colleagues in an environment that allows me to continuously learn and succeed.
Mel Giles
Senior Consultant
Theresa Myers
Manager
Cartesian promotes a culture of personal development and collaboration that has afforded me the opportunity to grow in my career. I’ve expanded my professional horizons, building relationships with clients from day 1 and challenging myself to think creatively to solve complex business challenges. At the same time, our team is filled with friendly, intelligent, and helpful people that are eager to support you – it’s the best of both worlds.
Redouane Ali
Principal Consultant
Sophia Gottlieb
Manager
Simon Evans
Principal
Simon is a Principal in Cartesian’s London office and is responsible for leading strategy engagements. He has extensive experience working with service providers and network operators on a range of initiatives, from growth strategy to data governance.
His project expertise includes:
- Growth/Expansion Strategy
- Network Economics
- Competitive Analysis
- Procurement & Regulatory Support
- Data Analysis & Visualisation
- Market Research
- Commercial Due Diligence
- Telecom Processes
Simon received a BSc in International Management from the University of Warwick.
Olivier Gobilliard
Software Development Manager
Lionel Tranchard
Content Security & Tech. Consulting
Lionel is Cartesian’s Head of Content Security and Technology Consulting, and a Senior Executive with over 25 years of experience in research, development, system architecture, program management, system engineering, and integration, as well as in the management of complex projects, in the pay television and digital media industries. He is in charge of supervising our Technology Consulting Practice and manages the Paris Cartesian office.
Lionel has wide expertise in the fields of pay-TV, content security, broadcast, IPTV, OTT video services, software applications, and UI/UX. In particular, he has supervised projects for the specification, design, and integration of end-to-end broadcast, IPTV and OTT systems.
Relevant experiences include:
- Project management for the design, build, and integration of an end-to-end hybrid IPTV/OTT platform offering STB and multi-screen services (meinfernsehen.tv).
- Defining the system architecture, technical interfaces, end-to-end integration principles, and OSS/BSS interfaces for several TV platform deployments in Europe.
- Drafting of RFPs, management of RFP processes, and vendor selection for OTT and hybrid TV platforms, including the service back-ends, the content preparation head-ends, the set-top boxes, the interactive applications, and the content security systems.
- Monitoring and contributing to standardization bodies, in particular in HbbTV with active participation in the specification of Push VOD.
- Conducting technical studies for various operators.
- Conducting several security audits for operators or CAS/DRM suppliers.
- Program management and system integration for the launch of a TV On Demand platform offering VOD and Catch-up TV services.
- Participation in technical strategy projects for hybrid STB and Gateways.
- Technical management for the development of the complete software stack of an IPTV STB for a major Telco.
- Several due diligence on triple-play cable operators and on a leading middleware and conditional access provider.
- Program management and technical leadership for the launch of a hybrid PVR STB, and the Digital Switch Over of a cable operator in Germany.
Leah Fawzi
Senior Business Analyst
Cartesian has been the perfect place to begin my career – surrounded by smart, supportive teammates in a fun and collaborative environment, I feel myself learning and growing every day.
Jenna Wagner
Senior Data Analyst
Mei Lam
Security Assurance
Mei is Cartesian’s Head of Security Assurance. She is responsible for client delivery, account management, and business development for the Content Security Team.
Her team provides testing, security auditing, investigatory, and consultancy services to clients in the Media and Entertainment Industry. She works with content owners and video service providers to ensure content is secure and revenue is protected.
Her project expertise includes:
- Anti-piracy Investigations
- Vulnerability Assessments
- Geo-blocking Circumvention Testing
- Watermark Robustness Testing
- Compliance Testing
- Revenue Protection
Mei received a BSc in Computer Science (Networks) from the University of Hertfordshire.
Brad Hoffman
Consultant
At Cartesian we help our clients navigate through evolving trends and challenges within the TMT industry. We are focused on building long-term client relationships and it is rewarding to see the strategic impact we provide our clients.
Daniel Andrews
Consultant
Alistair Crook
Vice President
Alistair is responsible for client delivery, account management, and business development for the video, media, and Wi-Fi teams. They provide consultancy, testing, and technical services to media and broadcast service providers within EMEA.
Alistair has many years of experience in the media and video sectors in senior management positions, working with executive-level stakeholders to develop strategy, governance, and structure across operational and technical departments. Managing service and business operations for both suppliers and operators over the years has facilitated his ability to empathize with client challenges and define tailored solutions that solve their needs.
David Davies
Vice President
David is Vice President, Telco Delivery within Management Consulting and leads Cartesian’s Enterprise practice. David helps service providers manage their large customers, driving efficiency, customer experience, and profitability.
He is a seasoned consulting professional with 18 years’ experience within the telecoms sector including 6 years working within industry. David’s focus is on successful enterprise delivery and helps service providers navigate the complexities that large customers present. Latterly, David works with operators in the creation and delivery of their Unified Communication strategy, bringing a wealth of experience in programme delivery across the customer lifecycle.
Prior to joining Cartesian, David worked as a Consultant for PwC Management Consultancy Services as well as managed the development of the billing platform used in the launch of Three. He received his BSc in Mathematics, Operational Research, Statistics and Economics from the University of Warwick.
John Jonsson
Senior Business Analyst
Philip Hobson
Principal Consultant
Craig Sambridge
VP, Technology Engineering
Craig leads the Research and Development team at Cartesian and is responsible for design, development and management of our software solutions including Ascertain®.
Coming from a software engineering background, initially developing wholesale rating systems for the telecommunications market back in 1996, Craig brings to the team proven management expertise and industry knowledge with a strong customer centric focus in addition to his detailed technical knowledge of the software development process and extensive knowledge of UNIX platforms.
During his time at Cartesian, Craig has also spent many years designing and leading software and integration projects for our customers and taken on a number of additional roles, including OSS and BSS consulting, as well as technical product management of our software.
Craig holds a degree in Computer Science B.Sc. (Hons) from the University of Hertfordshire in England.
Pratik Bose
Consultant
Pragya Garg
Senior Data Analyst
Aisha Ahmed
Consultant
Rishi Modha
Vice President
Rishi is a Vice President in Cartesian’s Boston office and is responsible for leading strategy and analytics engagements.
He has extensive experience working with communications and video service providers on strategic initiatives, helping them use data science and analytics to drive effective commercial actions.
His project expertise includes:
- Content Planning and Investment
- Customer Experience Improvement
- Customer Value Management
- Fraud Reduction
- Market Research and Analysis
- Network Planning and Investment
- Product Development
- Sales and Marketing Improvement
Rishi received a BSc in Mathematics and Philosophy from the University of Bristol.
Jay Kearns
Consultant
Dale Reynolds
Vice President
Dale is responsible for the sales and management consulting services of Cartesian’s North American operations.
With over twenty one years of consulting experience supporting telecommunications, manufacturing, retail, financial, and insurance customers, Dale has developed expertise in corporate performance management, Sarbanes-Oxley, revenue assurance, financial management, systems integration, business process re-engineering, and project/program management.
Prior to joining Cartesian, Dale led projects at EDS where he focused on billing, sales, ordering, and financial functions. At EDS he worked with leading telecommunications and utility firms, including AT&T, Verizon Wireless, Philips Lighting, United Water and J. Crew, in engagements involving application development, SAP Basis Administration, application and web hosting, as well as the management of computing environments and LAN/WAN networks.
Since joining Cartesian, Dale has successfully implemented several multi-million dollar engagements and has engaged in the program management of diverse teams across multiple disciplines to ensure that projects are delivered on time and on budget.
Dale is a graduate of Slippery Rock University of Pennsylvania and holds a Bachelor of Science in Accounting and Computer Science.
Diksha Singh
Implementation Consultant
Don Zurawski
Vice President
Don works closely with clients to provide insight into organizational improvement and optimization of existing IT and functional activities.
He regularly leads projects for Cartesian involving industry requirement compliance, IT infrastructure assessment, and operating environments. Don is an expert in applying Cartesian’s proprietary methodology, QSA®, which assesses and benchmarks information technology systems against Industry Best Practices. This objective, third party audit enables our clients to demonstrate that they are meeting SLAs, contractual, and legal/regulatory obligations. With over 25 years of senior management and leadership experience with several Tier One communications providers, Don is well versed in Best Practice standards and guidelines that include CobiT, PMI-PMBOK, SEI-CMMI for Software Development, ITIL, and TQM.
Before joining Cartesian, Don was the Director of Sprint’s Virginia Billing Services. In this capacity, he was responsible for the integrity of Sprint’s Data Services and Federal Government FTS billing, including customer service acceptance, transaction processing, invoice verification, user requirements definition and user acceptance testing. Prior to his 15 year career at Sprint, Don worked at MCI managing several key revenue activities including A/R operations and systems management, traffic processing, billing management, and merger and acquisition operations integration.
At Cartesian, Don has built upon his previous successes by leading several major contractual compliance performance and systems audits as well as numerous external benchmark assessments of clients’ Billing, Project Management, SDLC, and IT Refreshment processes.
Don’s efforts have garnered several high profile awards including MCI’s Excellence in Service, Sprint’s President’s Club Award, the Sprint Chairman’s Quality Award and the Missouri Quality Award for performance excellence. Don graduated from the University of Maryland, College Park, with a BS in Business Administration and is a member of the Virginia Chapter of ISACA for IT Governance.
Ceri James
Consultant
Madeleine Abdoh
Vice President, People & Operations
Madeleine Abdoh is VP People & Operations for Cartesian’s EMEA business. She has a multidisciplinary background in international HR Management, Leadership Development, Law & Business. For the past 15 years, she’s held global and regional HR leadership roles in leading private and public companies in Media, Technology and Professional Services, including Thomson Reuters and the BBC. Madeleine has spearheaded culture change, delivered complex change programmes, developed and implemented multiyear workforce plans, and has expertise in M&A and integration, employee relations, engagement, DEI and well-being.
She attended the London School of Economics, earning Masters’ degrees in Tax law and Industrial Relations, and completed an MBA at Vlerick Business school in Ghent.
Joanna Cline
Vice President, Human Resources
Joanna leads Cartesian’s Human Resources and Recruiting teams.
With over 20 years of Human Resources experience, she is a member of the Executive Management Leadership Team responsible for corporate strategy initiatives. In addition, she manages all aspects of Human Resources in North America, including benefits, employee relations, compliance, payroll, project management, change initiatives, and recruiting and retention.
Work is such a significant part of our lives that Joanna tries to do what she can to continue to enhance the employee experience. As she moves through her workday, she always considers how she can best create a positive work environment for Cartesian’s employees.
Prior to joining Cartesian, she was a Human Resources Specialist for SYSCO where she oversaw sales and administration recruiting, commission payroll, and human resources-related project management. She also collaborated with the Employee Relations team at State Farm’s corporate headquarters in Bloomington, IL.
Joanna graduated with honors from Missouri State University with a Bachelor of Science degree in Psychology and Human Resources Management, including research focused on emotional intelligence in the workplace. Following that achievement, she earned a Master of Science degree in Industrial/Organizational Psychology from Illinois State University.
Rohan Prabhakar
Senior Business Analyst
Every day at Cartesian offers something different. Whether you are working on industry-changing projects, modelling future trends or playing mini golf with your team – there’s never a dull day here.
Dylan Ambrosoli
Consultant
Matthew Turner
Business Analyst
Graham Harvey
Wi-Fi / Implementation
Graham is Cartesian’s Head of Wi-Fi, Implementation Services. As Head of Wi-Fi services, Graham is responsible for overall delivery of our Wi-Fi services, manages our relationship with Wi-Fi partners, and works with our business development team for sales activities.
Graham spent his early career as a software engineer and software team leader, firstly in radar research but predominantly in TV broadcast automation.
Subsequently, Graham has held numerous management roles: project management, software development management, product management, support management, third-party management, and customer relationship management.
Prior to his current role, Graham was deployed at Virgin Media for three years during which he managed the software and hardware testing of the Hub, Super Hub and Super Hub 2 products.
Graham holds a BSc (Hons) in Electronic and Electrical Engineering, University of Birmingham in the UK and is a member of the IET.
Alex McGlue
Consultant
I’m thrilled by my decision to join Cartesian. Everyone brings a unique and valuable skillset to the table, and I’m blown away daily by how driven the team is. It’s made me a better colleague. The “secret sauce” to our success as a small group, however, is undoubtedly the group dynamic. We care about one another, professionally and personally, and that translates to a culture that can be greater than the sum of its parts.
Jayesh Varsani
Analyst
Peeyush Rajabhoj
Consultant
Matt Field
Head of Analytics, EMEA
Michael Dargue
Vice President
Michael leads strategy and regulatory engagements for service providers, network operators, equipment vendors, investors, and regulatory authorities.
He has over 30 years of experience in the telecoms sector including 12 years in industry. Specific areas of expertise include fibre broadband, fixed-mobile convergence, enterprise services, network technology, and telecoms sector regulation. Michael has advised clients on opportunity sizing, entry option analysis, proposition development, and go-to-market planning.
Examples of Michael’s client work include:
- Researching buyer attitudes and drivers in the enterprise market
- Undertaking market analysis and competitor benchmarking
- Rationalising products and pricing for an international service provider
- Preparing business cases for commercial and state-funded fibre networks
- Leading technical and commercial due diligence for rural and metro fibre networks
- Developing BU-LRIC cost models for setting charge controls on fixed and mobile networks
Prior to Cartesian, Michael led an international team at Colt Telecom with responsibility for network strategy, network planning, and product development. He received his Bachelor of Engineering degree from the University of Bristol and is a Chartered Engineer and Member of the IET.
Oliver Axbey
Consultant
Clementine Mamba
Consultant
Barry Eeles
Senior Consultant
Barry has worked with Cartesian over the past eight years as an associate and has recently been brought onboard as a Senior Consultant. With over 25 years’ experience within the telecom sector, including 21 working within the industry, he has specialized in operational transformation and the delivery of large, complex programs. Working with enthusiastic and professional colleagues that share a common vision of providing the best, most innovative services to our clients is the best part of his day.
Mattia Janigro
Principal
Mattia is a Principal in Cartesian’s Boston office and a member of the North America Strategy & Analytics team. Mattia has been in an advisory role for his entire career, with experience spanning sales, marketing, logistics, and network design. At Cartesian, Mattia leads engagements focused on long-term business strategy, infrastructure planning, brand strategy, and competitive intelligence. In addition to strategy expertise, Mattia has worked extensively with technical teams and data scientists.
Mattia received his MBA from the NYU Stern School of Management and a Bachelor of Science in Applied Mathematics from the University of Rochester.
Rupali Shenoy
Senior Business Analyst
Working at Cartesian has given me the opportunity to grow rapidly and challenge myself each day. I continue to look forward to collaborating with a team that is comprised of intelligent and supportive individuals who are always willing to help me improve on various skillsets.
Tommy Xiao
Business Analyst
I chose to join Cartesian because the close-knit office culture really appealed to me. I was already introduced to everyone in the office within my first week and am comfortable reaching out to anyone for support. TMT is one of the most exciting sectors as the globalization of 5G networks and evolution of media will be a catalyst to how we communicate and absorb information in the long term. Specializing in this will maximize my growth in the consulting industry.
Stephanie Hansen
Financial Analyst
Stephanie Hansen is a Financial Analyst at Cartesian. She helps collect revenue, process month end, file property & state taxes, reconcile the financials, and assist with audits.
Linda Xie
Business Analyst
Cartesian has such a talented and lovely team. I felt supported by the team even before my first day and I am so glad that I choose to land my first full-time job here. My favorite part is definitely the people here!
Lauren Sheppard
Consultant
I’m proud to work for Cartesian, working every day with experts in telecommunications who understand client needs. The most positive aspect of the ‘culture’ is the coaching and mentoring behaviour that is present in interactions with all levels of management.
Georgie Crowther
Business Analyst
I chose to work at Cartesian due to my interest in the TMT industry and desire to take on responsibility early in my career. The opportunity to expand my analytical and problem-solving skills, alongside developing industry knowledge, is an exciting one.
Chris Quintin
Chief Operating Officer
As Chief Operating Officer, Chris has full operating accountability for Cartesian’s business in both EMEA and North America.
Working alongside Sam Kornstein (Managing Director of global Strategy & Analytics), Chris is defining, leading and delivering the next phase of Cartesian’s global journey.
Chris is a relationship-focused TMT leader with a proven track record in Global Sales & Commercial Management, Account Directorship, Bleeding Edge Proposition Development, Professional Services & Consultancy Delivery. With over 25 years’ experience in the sector, Chris has worked in senior delivery, leadership, consultancy and commercial roles for some of the world’s largest global TMT organizations.
Contact Chris to learn how Cartesian can help.
Sam Wildfire
Business Analyst
Cartesian is a company built up of like-minded people with a common passion for problem solving within TMT, which promotes close collaboration with those whose careers you wish to emulate, and those who were once in your shoes. This creates the perfect environment to grow professionally and is why I chose to work at Cartesian.
Neal Paye
Vice President
Neal is a Vice President based in Cartesian’s Boston office and a member of the North America Strategy & Analytics team. Neal has 10+ years of strategic advisory experience, including consulting advisory and internal corporate/business strategy roles. His areas of expertise include product and go-to-market strategy, customer experience enhancement, sales & marketing optimization, market & competitive analysis, data analysis & visualization, and commercial due diligence. Neal’s experience spans the TMT ecosystem, including service providers, tech vendors, investors, regulators, and other industry stakeholders.
Neal received his MBA from the MIT Sloan School of Management and his Bachelor of Science degree from Questrom School at Boston University.
Kabir Khanna
Senior Business Analyst
I chose to work for Cartesian because of the close-knit team culture and the emphasis on providing clients with actionable data driven solutions.
Tom Melluish
Senior Consultant
Mark Markowitz
Vice President
Mark is responsible for business development efforts in the Tier 1 telecommunications carrier industry and brings over twenty-five years of experience in IT and consulting to Cartesian.
Prior to joining Cartesian, Mark founded RVA in 2005, which sold more than $29 million in consulting services during the first two years, after which it was acquired by Cartesian. Prior to creating RVA, Mark held several executive positions including Executive Vice President and founder of SBI, President of Emerald Solutions, and Chief Information Officer at EDS, where Mark was responsible for multiple outsourcing projects for large clients. Also, at Claremont Technologies, he was the key executive responsible for taking the company public.
Mark received his Bachelor of Science degree from SUNY and Master of Arts degree from American University. He has also served as the Chairman of Computer Science at Washington International College and taught at American University. Mark is the Chairman of the Yogi Berra Museum & Learning Center in Little Falls, NJ and on the Advisory Board of the Somerset Patriots in Bridgewater, NJ. Along with supporting many charities, Mark is involved with the Joe Torre Safe At Home Foundation.