Founding Engineer
Hybrid (London, United Kingdom)£50k - £250k + equityFull-timePosted 11mo ago
About the role
Founding Engineer role at SAMMY Labs, a fast-growing YC-backed company building a foundational model for law. Full-stack engineering position with flexible pay/equity, visa sponsorship available, and a strong emphasis on autonomous, fast-learning builders who can contribute across the stack and learn the inner workings of a high-growth startup.
Responsibilities
- We are all builders and there's a lot to build! We love folks who build in their spare time so show us the cool stuff you have made.
- Practically, you're a scrappy dev and happy to hop on youtube/deep research to learn new things
- Ideally 2+ years experience in a software engineer role (new grads welcome but you need to have things you have personally built). We don't care what university you went to or where you've worked prior, the main thing is you learn fast.
- This is a great role for someone who wants to learn the inner-workings of an extremely fast growing startup to one day take the plunge of your own
- A note on AI: SAMMY is not an LLM wrapper. If you're excited by mechanistic interpretability, symbolic + learned hybrids, and systems where correctness is provable rather than vibes-based - you'll fit in here.
Qualifications
- Ideally 2+ years experience in a software engineer role (new grads welcome but you need to have things you have personally built).
- We value self-motivated learners who can learn fast regardless of university or prior employer.
Skills
Nice to have:NextjsPythonAWS infraLangchain/langgraphfastapi
Benefits
- We pay whatever you want - it's up to you to convince us you're worth it. That includes equity.
- Free breakfast, lunch & dinner
- We do a group activity every week (clay shooting, climbing, VR arcade, etc.)
- CEO's dog, Luffy, is part of the culture (dog-friendly work environment)
Last updated Aug 26, 2026. Interested? Apply on the company site.
About SAMMY Labs
Live, AI-powered graph of every possible click path in your software
SAMMY is an Al that explores your app like a real user, mapping every possible click to generate content, onboard users and spot issues. It updates automatically with every product change, keeping everything running smoothly. It may feel like magic, but it’s just powerful technology at work.