John O.

Chief Executive Officer - NashTech. Experienced international leader in Technology and Management Consulting sectors. Published author.

London, England, United Kingdom

About

Leader in the Information Technology and Management Consultancy sectors with extensive international Executive, Director and Board level experience. Currently, proud to be Chief Executive Officer for NashTech - a global Custom Software Development organisation focusing on high quality systems of innovation and differentiation. Previously - Global Strategy Officer for Hitachi Consulting; EVP for Hitachi Consulting EMEA; Vice President at Gartner; Partner at Accenture; Partner at Ernst and Young; Vice President at Capgemini; Senior Vice President at Infor. In addition - Chartered Director and Fellow of the Institute of Directors. Faculty for Chartered Director programme. Shortlisted for Director of the Year London and South East. Diploma in Executive Coaching. Advisor and coach to smaller businesses in the IT sector. Published author of award shortlisted historical novels published in UK, US, China and Turkey. Published author of historical novels published in UK, US, China and Turkey - the 'Jack Christie' books (https://johnnyobrien.co.uk/) - 'Day of the Assassins' (1914, and count down to WW1), 'Day of Deliverance' (1588, Elizabeth I and Renaissance), 'Day of Vengeance' (1940, fall of France), 'Day of Rebellion' (1860, China, Taiping rebellion). Speaker on writing and history at schools, conferences, festivals (Edinburgh, Hay, Cheltenham, Starlit London and Borders). Long-listed for the Branford Boase Award, Book Trust's Booked Up Programme. Shortlisted for BBC/Historical Association Children’s Quills Award and Cumbrian Secondary Schools book award.

Experience

  • Chief Executive Officer at NashTech
    Nov 2023 - Present · 2 yrs 8 mos

  • Vice President at Gartner
    Feb 2019 - Nov 2023 · 4 yrs 10 mos

  • Self Employed at Self Employed
    Oct 2018 - Jan 2019 · 4 mos

  • Senior Vice President at Infor
    Jul 2018 - Sep 2018 · 3 mos

    SVP for Infor Consulting Services in Europe, Middle East and Africa.

  • Hitachi Consulting (London, United Kingdom)
    • Global Chief Strategy Officer / Executive Vice President EMEA
      Apr 2017 - May 2018 · 1 yr 2 mos

      Global Chief Strategy Officer for Hitachi Consulting and Executive Vice President for Hitachi Consulting Europe, Middle East and Africa.

    • Executive Vice President EMEA
      Apr 2011 - May 2018 · 7 yrs 2 mos

      EVP for European, Middle Eastern and African operations of Hitachi Consulting for Management Consulting, Technology Solutions and Outsourcing Services. Hitachi Consulting Main Board Director. Global Executive Leadership Team member. Hitachi European Leadership Team member.