Find your path to Jason
281 people in our graph share verified history with Jason — schools, employers, funds. One of them is your warm intro.
Deji SasegbonunlockedJason: together at Imperial College London (2005–2006)
×5Jason: together at Imperial College London
×3Jason: together at Schlumberger
×3Jason: together at Quantic School of Business and Technology
About
Jason Green is Chief Technology Officer at Sonata One, with over 21 years of experience across venture capital, private equity, and listed businesses in the UK and Europe. His work spans technology strategy, operating models, governance, and organisation design, with direct involvement in architecture, platform and data choices, AI roadmaps, security, and engineering standards. Based in London, his experience covers regulated financial services, marketplaces, travel, and education, with a focus on scale-up phases and ownership transitions.
Founder at Holidayfox
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Holidayfox's investors · 2
Experience
- Sonata OneCTOcurrent2023 — presentGreater London
- Yamgo LtdNon Executive Board Membercurrent2021 — presentLondon Area, United Kingdom
- HolidayFoxCo-Founder2020 — 2025
- Checkatrade.comCTO2019 — 2020London Area, United Kingdom
- WowcherGroup CTO Excalibur (Wowcher, Living Social, Secret Sales)2018 — 2019London, United Kingdom
- Paws.comInterim Group CTO Kokoba (Paws, Medicanimal, Pet-Supermarket, Petmeds)2017 — 2018London, United Kingdom
- DaWanda GmbHGlobal CTO2016 — 2017Berlin Area, Germany
- BrainlyGlobal CTO2015 — 2016
- Wimdu, Rocket InternetGlobal CTO2012 — 2015Berlin Area, Germany
- Ruby50 LtdNon Executive Director2008 — 2012London, United Kingdom
- Dynamic50 LtdCEO2007 — 2012London, United Kingdom
- CarbonCalculatedCEO2009 — 2012London, United Kingdom
- Greenvoice LtdCTO2005 — 2008London, United Kingdom
- SchlumbergerSoftware Engineer2003Abingdon, UK
- SchlumbergerSystems Administrator2001Abingdon, UK
Skills & more
Ruby on Rails99Ruby99Open Source56Linux52Git48PostgreSQL24MySQL40HTML 518REST20Amazon Web Services (AWS)24JavaScript33MongoDB16
+12 more
CSSNginxPHPApacheXHTMLNode.jsjQueryJSONArtificial Intelligence (AI)Technology ManagementBusiness StrategyDevOpsLanguages English · French · German · Polish
- City & Guilds Object Oriented Programming in C++ — City & Guilds
From Jason's professional profile.
Frequently asked questions
- Who is Jason Green?
- Jason Green is Chief Technology Officer at Sonata One, with over 21 years of experience across venture capital, private equity, and listed businesses in the UK and Europe. His work spans technology strategy, operating models, governance, and organisation design, with direct involvement in architecture, platform and data choices, AI roadmaps, security, and engineering standards. Based in London, his experience covers regulated financial services, marketplaces, travel, and education, with a focus on scale-up phases and ownership transitions.
- Where does Jason Green work?
- Jason Green is Founder of Holidayfox.
- What companies did Jason Green found?
- Jason Green founded Holidayfox.
- Where did Jason Green go to school?
- Jason Green studied at Imperial College London (BEng (Hons), Computing); Quantic School of Business and Technology (Executive MBA, Business Administration and Management); European school, culham (European Baccalaureate, maths).
Founder mafias
Imperial College London mafia377
Also came through, then founded or led a company.
Nessan BerminghamDoctor of Philosophy - PhDFounded Korro Bio +2David SchilanskyMScFounded One Biosciences +2David MyttonMaster of Science - MSFounded Server Density +1Slava SolonitsynMBAFounded No Cap +1Barnaby MaletTeaching AssistantFounded machine0 +1Advait RuiaBachelor of Engineering (BEng)Founded SuperTokens +1
+ 370 more
Quantic School of Business and Technology mafia41
Also came through, then founded or led a company.
James Lu MorrisseyMaster of Business Administration - MBAFounded Mentor Collective +1Ryan A. Grant, MD, MS, MBA, FAANSMaster of Business Administration (M.B.A.)Founded Nomad Health +1Hillary LehrExecutive MBAFounded QuillerJess McCartenMaster of Business Administration - MBAFounded CloudxOttar MobleyExecutive MBAFounded Launch AlaskaGary GoldmanEMBA candidateFounded Modiohealth
+ 34 more
Same school
Also attended Imperial College London718
Deji SasegbonVP, Platform & Portfolio Operations at EchoVC PartnersMadison LenormandInvestor at DaphniLoubaba El AyoubiInvestor at NorthzoneGiovanni MariggiInvestor at MedicxiFrancois PrinslooInvestor at MedicxiBen PerryInvestor at Medicxi
+ 712 more
Also attended Quantic School of Business and Technology97
Victoria BondarchukDirector at Marlin Equity PartnersHillary LehrManaging Director, Fund V at Higher Ground LabsArun IyerInvestor at Green FlagAlex RendónInvestment Associate at BuenTrip VenturesOluwatofunmi IdowuVenture Analyst at LoftyInc CapitalClaire CrowtherVice President, Strategy & Operations at Underscore VC
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+ 91 more
Shared employers
Also worked at Sonata One1
Also worked at DaWanda GmbH2
Also worked at Brainly7
Larry IllgAdvisor at Delin VenturesRob HutterFounder, Managing Partner at Learn CapitalMarcin KurekPartner at Market One CapitalPreetha RamManaging Partner at Pier 70 VenturesMichael StatonEIR at SFU VentureLabsNitesh BantaCo-founder and Advisor at Rough Draft Ventures
+ 1 more
Also worked at Schlumberger143
Reed HastingsCo-founder of NetflixDario AmodeiCo-founder & CEO of AnthropicDeji SasegbonVP, Platform & Portfolio Operations at EchoVC PartnersSaurabh K. MittalChairman, CEO and Founder at Mission HoldingsSiva KolappaGeneral Partner at Data TechConnor CooleyVenture Partner at Electric Feel Ventures Llc
+ 137 more