Jezen Thomas

Technical Due Diligence

I'm the CTO and co-founder of Supercede, a reinsurance technology company — Series A at a $40M valuation. I built the engineering team and the product from zero. I do technical due diligence for VC funds investing in early-stage software companies.

What You Get

A fixed-scope, fixed-price written DD memo, delivered within 5–7 business days of getting access to the company. The process includes a codebase review, architecture review, team and process assessment, a 60–90 minute CTO interview, and a 30-minute readout call with your team.

What's in the Memo

• A clear verdict: invest, invest with conditions, or pass on technical grounds
• Codebase quality — language and framework choices, test coverage, CI, tech debt, dependency hygiene
• Architecture — current shape, scaling headroom, single points of failure, compliance readiness
• Team and process — CTO assessment, hiring plan realism, engineering culture, bus factor
• Roadmap risk — can they build what the deck promises in the timeframe the deck promises?
• Specific risks that could surface at Series B or C
• Recommendations — what to require as conditions, what to monitor post-investment

Opinionated, 6–10 pages. You're paying for a verdict, not a survey.

Who This Is For

Pre-seed to Series B funds doing technical diligence on software companies. Also useful for engineering-led founders who want an outside assessment before a raise.

Where I'm Strongest

• Functional programming and unconventional stacks — Haskell, OCaml, Elm, Rust, Nix. Almost no credible DD advisors exist here.
• B2B SaaS in insurance, reinsurance, fintech, and adjacent regulated verticals. I built Supercede in this space.

Pricing

Standard memo — £4,000. Codebase review, architecture review, team and process assessment, CTO interview, written memo, readout call.

Deep dive — £7,500. Adds security review, scaling and cost modelling, hiring plan critique, and reference calls with the engineering team.

Get in Touch

Write to me at jezen@jezenthomas.com.