Senior Fullstack Engineer at Series A financial AI startup
Summary
A senior fullstack engineer at a Series A financial AI startup in London, owning product surfaces end-to-end to build an agentic platform that automates investment workflows. The core stack is Python, FastAPI, and React, with emphasis on distributed systems and LLM-based AI agent frameworks.
Job Title
Senior Fullstack Engineer
Salary
Not Disclosed
Company Description
Series A financial AI startup
Job Description
You will lead the development of an agentic platform designed to automate complex workflows within the financial services sector. By owning product surfaces end-to-end—from architecture to deployment—you'll build sophisticated tools for data processing and AI-driven collaboration, directly impacting high-value investment operations while working alongside a lean, elite engineering team.
Location
London, UK
Why this role is remarkable
- Full ownership of entire product surfaces within a high-growth engineering culture that minimizes bureaucracy.
- Backed by top-tier VCs following a period of massive revenue growth and a successful Series A funding round.
- Build complex, streaming-first agentic frameworks and AI systems that solve real-world problems in a multi-trillion dollar industry.
What You Will Do
- Architect and ship end-to-end features using a stack of Python, FastAPI, and React to solve complex data challenges.
- Develop robust, interruptible execution frameworks for AI agents and maintain sophisticated search clusters.
- Create collaborative AI tooling that integrates with standard enterprise productivity suites to streamline professional workflows.
The ideal candidate
- 4+ years of experience building production software at a venture-backed startup or high-performance tech firm.
- Deep expertise in Python and TypeScript/React, with a strong background in distributed systems and LLM implementation.
- A product-focused mindset that prioritizes user impact and excels at delivering high-quality code in a fast-paced environment.