Mark O'Brien

COO, Vitesse

Sevenoaks, England, United Kingdom

About

A highly commercial growth and change agent with considerable experience of data and analytics, financial management, fundraising, exits, strategic planning, establishing international operations, acquisitions and restructuring. Extensive knowledge of the global payments, telecoms, technology and digital media markets. Very experienced working with high-growth VC backed businesses as CFO and as an Investment Manager with a venture capital fund.

Experience

  • Vitesse (6 yrs 10 mos)
    • Chief Operating Officer
      Apr 2025 - Present · 1 yr 3 mos

    • Chief Financial Officer
      Sep 2019 - Apr 2025 · 5 yrs 8 mos

  • Chief Data Officer at Worldpay Inc
    May 2018 - Jul 2019 · 1 yr 3 mos

    Following the acquisition of Worldpay by Vantiv, promoted to the role of Chief Data Officer for the global Group.

  • Worldpay (6 yrs 11 mos)
    • Data Transformation Officer
      Feb 2015 - May 2018 · 3 yrs 4 mos

      Led the creation of a focussed and specialized 110 person data team for Worldpay Group, navigating an internal reorganization and subsequent recruitment drive. Tasked with transforming Worldpay's capabilities regarding data and driving increased value from data exploitation. Built a large scale production Enterprise Data Platform utilizing Hadoop, Spark Streaming, Kafka and other Big Data Technologies.

    • CFO eCommerce Business Unit
      Jul 2011 - Feb 2015 · 3 yrs 8 mos

      Following acquisition of Envoy by Worldpay I became CFO of Worldpay's eCommerce division. During my 4 years we grew revenue from ~£400m to ~£1bn.

  • CFO at Envoy Services Ltd
    Sep 2010 - Sep 2011 · 1 yr 1 mo

    CFO of FSA regulated payments provider. Envoy provides merchants with an off the shelf global network of local bank account and alternative payment services.

  • Interim CFO at Caplin Systems
    Jul 2010 - Oct 2010 · 4 mos