Senior Full-Stack Software Engineer

New Today

Senior Full-Stack Software Engineer London (Victoria) - 3 days in office - £100,000 - £120,000 - Permanent The opportunity This is a rare greenfield engineering role at a genuinely early-stage business. The successful candidate will join a small, senior founding team and take real ownership of the technical foundation from day one - building the stack, setting the architecture, and establishing the patterns that everything else will be built upon. The role spans customer-facing product, backend automation, AI agent orchestration and internal tooling - with significant scope to grow as the business scales. What you'll be doing
Building the customer-facing platform from the ground up - timelines, task-based views and embedded AI assistance Owning backend automation workflows, AI agent orchestration and data pipelines Building internal tooling to support the team in reviewing and approving AI-generated work Setting engineering patterns and architecture that future hires will build on
What we're looking for
5+ years building modern web applications with a strong backend emphasis Strong command of React/Next.js and Python/TypeScript Experience with AI agent orchestration frameworks (e.g. LangGraph, OpenAI Agent SDK) The architectural judgment to make confident decisions on a fast-moving, greenfield stack A background in high-growth, VC-backed startups - you thrive in fast, dynamic environments London-based with existing right to work in the UK (visa sponsorship not available)
Why this role
A true ground-floor opportunity at a well-funded, early-stage business disrupting a traditional sector Founding team with a proven track record - previously built one of the UK's fastest growing consumer brands Backed by respected VC funds with a recent funding round closed Real ownership and influence over product and architecture from day one Work at the cutting edge of AI and automation in a sector ripe for disruption
#J-18808-Ljbffr
Apply
Location:
Greater London
Job Type:
FullTime

We found some similar jobs based on your search