You will join a high-performing engineering team to build and scale robust backend services powering innovative AI applications. As a core contributor, you will take ownership of production systems, design efficient APIs using Python and FastAPI, and optimize data workflows. This is a critical role for an engineer who thrives on technical autonomy and high-impact shipping.
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London, United KingdomNot Disclosed
Backend Engineer at well-funded AI startup
Are you a Python expert looking to build the backbone of a high-growth AI platform? This well-funded London startup is looking for a Backend Engineer to own production services and scale their core API infrastructure using FastAPI and Postgres. If you thrive in high-impact environments and want to work alongside a top-tier team backed by world-class VCs, this is your chance to shape the future of AI-driven technology in a hybrid London-based role.
Overview
Role overview
Company
About the company
Well-funded AI startup
Responsibilities
What you will do
- Design, build, and maintain high-performance APIs and microservices using Python, FastAPI, and Postgres.
- Architect and optimize data models and caching strategies utilizing Redis to ensure system reliability and speed.
- Lead production deployments and own the end-to-end lifecycle of critical services from design to monitoring.
Candidate profile
Who this is a fit for
- 4+ years of professional experience building scalable backend systems with a focus on Python and SQL.
- Proven track record of owning production services and delivering projects focused on reliability or system scaling.
- Strong architectural foundations with experience in event-driven systems or containerization using Docker and Kubernetes.
What makes it remarkable
Why this role is remarkable
- Opportunity to work at the intersection of high-performance backend engineering and cutting-edge AI technology.
- Backed by top-tier VCs with a clear roadmap for scaling the core product suite globally.
- Hybrid working culture in Central London that balances collaborative in-office sessions with deep-work flexibility.
Jack & Jill
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.
Meet Jack
Jack gets to know what you're great at and what you want next, then searches 14 million jobs daily and introduces you directly to hiring managers.
How does this work?
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 it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
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