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Client Project Delivery

Our expert delivery teams have delivered transformative projects in strategy, management consulting and technology. We are passionate about problem solving, figuring things out, seeing things from a different angle and cutting through the complexities of our industry.

  • Ron Angner

    Ron Angner, PhD

    Senior Vice President, Network and Operations

    Ron 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.

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  • Stephen Upton

    Dr. Steve Upton

    Senior Vice President

    Steve leads our Networks and Operations practice with expertise spanning telecoms and broadband services and in broadcast and digital video. Steve has over 30 years’ experience in the sector.

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  • Nikos Andrikogiannopoulos


    Nikos is a Principal in our Boston office with experience in telecommunications engineering, optical fiber networks, economics and data analytics.

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  • Rob Chapman

    Rob Chapman


    Rob ensures the quality of project and programme delivery on client engagements. He specializes in support for operational change and best practice for companies’ transformation activities.

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  • Michael Dargue

    Michael Dargue


    Michael leads strategy and regulatory engagements for service providers, network operators, equipment vendors, and regulatory authorities.

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  • David Davies

    David Davies

    Director, Client Delivery

    David is the Director, Client Delivery within Management Consulting and leads Cartesian's Enterprise practice. David helps service providers manage their large customers, driving efficiency, customer experience, and profitability.

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  • Scott Firebaugh

    Scott Firebaugh

    Director, Managed Solutions – Implementation

    Scott leads the implementation team of managed solutions for North America, which includes full life cycle software development that leverages Cartesian’s Ascertain® platform to meet clients’ specific needs.

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  • Dave Fitton

    Dave Fitton

    Principal Consultant

    Dave is a Principal Consultant. He has worked in data integrity, network inventory, revenue assurance and various migration programmes both in the UK and overseas.

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  • Kazan Glenn

    Kazan Glenn

    Director, Solution Architecture and Innovation

    Kazan focuses on Solution Architecture within our Technology & Innovation group.

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  • Graham Harvey

    Head of Wi-Fi, Implementation Services

    As Head of Wi-Fi services at Cartesian, 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.

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  • Sam Kornstein

    Samuel Kornstein, CFA


    Sam is a Principal in Cartesian’s Boston office, with responsibilities for client development and engagement management.

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  • Gary Marshall

    Gary Marshall

    Managing Partner, Farncombe Engineering Services

    Gary has worked in consultancy services for the whole of his career, specialising in software development and project management in the broadcast space since the mid-1990s.

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  • Doug Melbourne

    Doug Melbourne

    Principal Consultant

    Doug Melbourne is a principal consultant with 20 years international experience in the field of telecommunications and multimedia systems.

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  • Richard Miguda

    Richard Miguda

    Director, Management Consulting

    Richard leads and ensures the quality of all our Management Consulting engagements for EMEA.

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  • Vito Morawetz

    Vito Morawetz

    Vice President

    Vito leads Cartesian's Access and Interconnect practice. He has over 20 years of experience in the telecom sector, including 14 years in the industry.

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  • Brian Paxton

    Brian Paxton

    Principal Consultant, Head of Security and Video Consulting

    Brian is a Principal Consultant in Cartesian’s London office and leads our Security Consulting practice in the UK. He joined Cartesian in 2016 having worked in the UK TV industry for 20 years.

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  • Roger Peden

    Roger Peden

    Director, Managed Solutions

    Roger is responsible for the ongoing development and support of the ever-increasing Ascertain® customer base.

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  • Craig Sambridge

    Craig Sambridge

    Director Research and Development

    Craig leads the Research and Development team at Cartesian and is responsible for design, development and management of our software solutions including Ascertain®

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  • Lionel Tranchard

    Lionel Tranchard

    Head of Technology Consulting, Principal Consultant

    Lionel is a Senior Executive with 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.

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  • Emma Watson

    Emma Watson

    Principal Consultant

    Emma is a visionary commercial leader with over 20 years’ experience executing strategy for high-profile telecommunications operators and suppliers.

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  • Don Zurawski

    Don Zurawski

    Vice President, Client Delivery

    Don works closely with clients to provide insight into organizational improvement and optimization of existing IT and functional activities.

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  • Tim Jacks

    Tim Jacks


    Tim is a Principal in Cartesian’s Strategy Practice, with expertise in UK and international telecom and media sectors. He has worked with a wide range of European and Global broadcasters, broadcast infrastructure providers and telcos.

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