James Tuckett
London, England, United Kingdom
Technical founder · ex-Summer.fi, Open, Handover
Experience
Open
Nov 2025 — Feb 2026Technical Founder
Designed the architecture for tokenised US equities backed 1:1 by positions at a real-world broker (Alpaca) — bridging 24/7 crypto markets with traditional market hours and managing settlement risk across the gap. Post-mortem: DTCC's T+0 crypto-settlement announcement in late 2025 made it clear we were 6–12 months too late to a market about to be owned by incumbents with regulatory relationships we couldn't replicate.
Handover
Feb 2026 — Apr 2026Co-Founder
Built a marketplace for UK SMB acquisitions seeded from Companies House, with buyer demand as the hook. Built the data pipeline, an LLM-over-structured-data buyer discovery tool, and an in-house agent framework on the Claude Agent SDK. Post-mortem: supply-side activation at venture scale wasn't realistic — the owners who needed it most were the hardest to reach, and the ones easiest to reach didn't need a marketplace.
Summer.fi
Apr 2022 — Dec 2025Blockchain Engineer
Co-lead engineer and architect of the Lazy Summer Protocol. Worked on core smart contracts, system architecture, and protocol governance.
TechTree
Jan 2020 — Apr 2022CTO, Co-founder
Advent International
Dec 2019 — Aug 2020Senior Software Engineer
Built the private people network — an internal LinkedIn for Advent personnel.
comparethemarket.com
Jan 2019 — Nov 2019Software Engineer
The Bank of London
Mar 2018 — Jan 2019Product Director
Part of a team building the next generation of digital bank.
Point
Sep 2016 — Sep 2018Software Engineer & Product
Clients incl. MakerDAO, Lloyd's of London, Deutsche Bank, MoneyTailor, Vanquis Bank and more.
investUP
Oct 2012 — Jul 2016CEO, Founder
Investment service for the peer-to-peer lending space. Sold in 2016.
Hazlewoods
Jan 2011 — Oct 2012Chartered Accountant
Education
University of the West of England
2006 — 2009Aerospace Systems Engineering
Cambridge Spark
2019 — 2019Data Science
Scrum Alliance
2016 — 2016Certified Product Owner, Product Management
Awards
Highest UX Score
Top 25 Fintech Company In The World
The World's Next 10 Big Fintech Stars