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Full-Stack Software Engineer - London - 5 days a week

Location: London, central, fully onsite (early stage, London platform team)

Salary: Up to £130,000

Seniority: 3-8 years | Permanent | Early hire on a small platform team

I'm working with a well funded early stage AI platform looking for a versatile full-stack engineer to join the London platform team as one of the first engineers.

This role is perfect for someone who loves shipping product, moving fast, and solving novel technical problems that sit at the intersection of data, systems and user experience.

What you'll own

Deliver a fast, reliable user-facing platform that real customers use every day
Iterate quickly on product features and infrastructure for novel technical problems
Own slices of the stack end to end, from SQL and backend logic to front end UX
Work closely with a tiny, high-calibre engineering team and shape engineering practices and culture

Tech profile I need

3 to 8 years of hands-on full-stack experience building production products
Strong backend experience in Python and SQL, or strong frontend experience in TypeScript + React (we value either path; full-stack candidates ideal)
Comfortable reading and improving C, Rust, or low-level systems components is a plus
Product minded: you care about UX, reliability and shipping valuable features quickly
Excellent communicator. Able to explain trade offs and technical decisions clearly

Why this role is different

Early hire impact: immediate ownership and visible influence over product direction
Exposure to hard production problems at the intersection of AI and business processes
Competitive compensation plus meaningful equity for early employees
Small tight team where your work will move the needle

Practicalities

Role: Permanent, London based (flexible working to be discussed)
Salary band up to £130k (final package dependent on experience)