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.
Senior Fullstack Engineer at Series A financial AI startup
Join a high-growth London startup building the next generation of agentic AI for the financial sector. As a Senior Fullstack Engineer, you'll own core product surfaces from ideation to production, building complex streaming frameworks and AI tools that automate high-stakes workflows. This is a unique chance to join a lean, elite team backed by top-tier VCs after a year of massive growth, offering top-of-market compensation and the opportunity to make a massive impact on a multi-trillion dollar industry.
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Location
London, United Kingdom
Compensation
Not Disclosed
Company
Confidential company
Role overview
About the company
Series A financial AI startup
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.
Who this is a fit for
- 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.
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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.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
Meet Jack
What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Confidential company wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.