Executive with experience at board level & CTO roles across a wide range of Venture Capital & Private Equity backed businesses in UK and Europe.
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CtoSonata OneLondon, Gb -
CtoIdr Jan 2023 - PresentGuernsey, Channel Islands, Gb -
Co-FounderHolidayfox May 2020 - PresentLondon, England, Gb -
Non Executive Board MemberYamgo Ltd Jun 2021 - PresentSwansea, Swansea, Gb -
CtoCheckatrade.Com Jan 2019 - Apr 2020Portsmouth, Hampshire, GbPerforming full scale digital transformation across a 25 year old brand and recent acquisition of Homeserve PLC.Shipped in year 1:- New consumer website - New infrastructure as code (Terraform, Kubernetes, AWS) PAAS- New Office & Team in London- New Sales CRM (Salesforce) - New marketing stack (Pardot)- New Data and Insights Platform (Apache Airflow, Hadoop / Hive, Presto, Chartio) -
Group Cto Excalibur (Wowcher, Living Social, Secret Sales)Wowcher Feb 2018 - Jan 2019London, GbPE backed Excalibur is the UKs largest daily deal group.Responsible for Product & EngineeringDelivered new strategy for travel as well as dynamic packaging MVPIncreased uptime and stability and introduced devops and infrastructure automation -
Interim Group Cto Kokoba (Paws, Medicanimal, Pet-Supermarket, Petmeds)Paws.Com Oct 2017 - Jan 2018Worked to define multi-brand strategy (Medicanimal, Petmeds, Petsupermarket & Paws):- Positive EBITDA focus for existing brands- New offering Product Market fit for PawsOther key initiatives:* New Warehouse migration & ERP* Focused on improving customer NPS
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CtoDawanda Gmbh Mar 2016 - Sep 2017(acquired by Etsy)With more than 6 million products from 360k designers Dawanda is the leading marketplace in Germany to buy unique, customised and handmade products.Board Member and CTO, together with the COO & CEO reshaped the org structure and brought the company back to profitability.Focusing on building an even more amazing Dawanda through Data Driven Product Engineering & responsible for Product, Engineering, Design, BI & Data Science.
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CtoBrainly Jan 2015 - Mar 2016Kraków, PlWith 150 million active monthly users, Brainly is the world largest student Q&A platform reaching over 1/5th of the worlds students.Grew and built Product, Tech and Data teams across New York, Berlin and Krakow.Achievements:- Company strategy & Product Vision- Agile transformation- Rebuilding the business logic from the ground up- Supporting a fast scaling (10MMU to 60MMU) legacy architecture- Business Intelligence- RebrandingResponsible for Product Engineering & Data -
Global CtoWimdu, Rocket Internet Oct 2012 - Jan 2015Wimdu, a Rocket Internet venture (acquired by Novasol) Backed by funding of $90m from Rocket Internet and Kinnevik, Wimdu is Europe’s largest city peer to peer property rental site with 300k properties available in over 100 countries.Achievements: Department: Unified Product, Engineering & BI and created full-stack teams working within an agile framework with quarterly goals and autonomy to define and execute towards the goals.Product: Moved from top-down project management to prioritisation based on business impact and cost with a fast feedback loop with the customer & lean approach in validating hypothesis and developing solutions to problems.Business Intelligence - Brought full A/B testing framework online allowing for both A/B and multivariant testing on anything. Thereafter we aimed to A/B & even vapour test wherever possible allowing us to quickly validate hypothesis.Engineering - Large overhaul of key areas, stripped out unnecessary feature bloat to focus on what really matters. Refactored when possible and moved Wimdu towards high availability SOA architecture allowing us to scale the team. HR - Built and trained in-house talent acquisition team allowing us to scale and attract top talent within a very competitive market. Removed predominant reliance on freelancer and brought on full-time staff.
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Non Executive DirectorRuby50 Ltd Jun 2008 - Dec 2012London, GbBuilt a talent acquisition business focused on mid-level to executive hires for companies using Ruby and other specialist technologies. Placed hundreds of permanent and temporary staff throughout the UK and Europe. -
CeoDynamic50 Ltd Jun 2007 - Oct 2012Boutique web agency focused on delivery through cutting edge agile practices. Built up to one of the UKs leading boutiques focused on solving problems for our approximately 150 customers.Worked with a huge variety of clients, from early stage startups (seedrs.com, amee.com) through to large corporations (CNN, AON).
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CeoCarboncalculated Dec 2009 - Jan 2012Enterprise SAAS suite for compliance with CRC, EU-ETS, ISO14064 and the Carbon Disclosure Project. Under the hood we built a popular open source platform and set of APIs that aggregates carbon and GHG emissions for everything in the world; from passenger transport, raw materials, through to consumer goods. The platform contained GHG information for more than 4 million objects with over 300million data points.Responsible for strategy, scaling and business development
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CtoGreenvoice Ltd Dec 2005 - May 2008Joined as first employee at Greenvoice, a micro-financing platform for environmental campaigns funded by a private investor. Built initial prototype with investor to quickly validate idea. From this grew team to around 25. Was first business using rails / ruby in London, part of the initial ruby community
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Software EngineerSchlumberger May 2003 - Oct 2003Houston, Texas, UsInternship as Software engineer working within the GeoQuest Systems group (circa 150 people). C++ Development within the oil drilling modelling software. -
Systems AdministratorSchlumberger Jul 2001 - Dec 2001Houston, Texas, UsInternship in SysOps at Schlumberger Abingdon.1st and 2nd level support of Windows, Linux and Solaris & internal build servers.Network infrastructure, telephony, software rollout, domain management, security.
Jason Green Education Details
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Imperial College LondonComputing -
Quantic School Of Business And TechnologyGeneral -
European School, CulhamMusic
Frequently Asked Questions about Jason Green
What company does Jason Green work for?
Jason Green works for Sonata One
What is Jason Green's role at the current company?
Jason Green's current role is CTO.
What schools did Jason Green attend?
Jason Green attended Imperial College London, Quantic School Of Business And Technology, European School, Culham.
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