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Founding Full-Stack Engineer (Agent-Native Risk Infrastructure)

United Kingdom
Visa Sponsorship
This Job is No Longer Active This position is no longer accepting applications
AI Summary

Join Bluebird as a Founding Full-Stack Engineer to design, build, and ship end-to-end customer-facing features across React UI, APIs, and agent-powered functionality. Own outcomes in a small, fast-moving team using modern AI tooling like Claude Code, with significant equity and competitive compensation. Location: King’s Cross, London (on-site, 5 days/week).

Key Highlights
Founding role in a high-growth, seed-stage company with institutional backing and rapid scaling (hit $1M ARR in 9 months with 3-person team)
Full-stack ownership: React, API, data model, and agent-powered features—no siloed teams; work directly with founders and senior team
Competitive compensation (up to £170k base + significant EMI-eligible equity) and visa sponsorship available

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Key Responsibilities
Decide, design, and ship customer-facing features end-to-end across React UI, API, data model, and agent-powered functionality
Own outcomes rather than tickets—work directly with founders and a small senior team without layers of management
Leverage modern AI tooling (e.g., Claude Code) as a core part of the development workflow
Technical Skills Required
TypeScript React Full-Stack Development

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Benefits & Perks
Up to £170,000 base salary
Significant EMI-eligible equity (tax-efficient UK scheme)
Visa sponsorship available (Skilled Worker/Global Talent)
Paid on-site work trial before offer (under 2 weeks start-to-finish)

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Nice to Have
Real design chops (UI/UX)
Experience folding LLM features into a product
B2B SaaS/GRC/security exposure
Early-stage or founding-team background
Strong engineering background from both big tech and startup environments

Job Description

TL;DR

Founding Engineer

London (King's Cross)

On-site, 5 days a week

Up to £170k plus significant equity

Visa sponsorship available

The Company:

They build agent-native risk infrastructure. Their agents run continuously on proprietary data, reassessing as things change instead of checking in at fixed intervals, and they sit on one platform that acts as the system of action, not just another workflow tool.

They hit a $1M ARR run rate about nine months after going to market, with a three-person team. They've just closed a well-backed seed round, UK and US institutional investors, with angels who've built at Meta, Isomorphic Labs, Palantir, and SpaceX. Series A is planned for H2 2027.

The role:

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Job Overview
Posted Aug 24, 2026
Employment Full-time
Experience Mid-Senior level
Location United Kingdom
Category Programming
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