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Software Engineer (Backend Python)

Software Engineer (Backend Python)

On site

London, United kingdom

£ 200,000 /year

Mid level

Full Time

29-12-2025

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Skills

Python PostgreSQL Architecture FastAPI

Job Specifications

AI Startup - Backend Python Engineer

A pair of second time founders who have already built and exited successful ventures are assembling a new elite engineering team for their next AI startup!

They have secured top tier backing (8 figures!), built early traction with thousands of users and are now searching for exceptional Founding Backend Engineers to scale a deeply ambitious product at breakneck speed. This is a ground floor opportunity to own the backend systems that could redefine how people interact with AI every day!

The Role

Build core backend services, APIs and distributed systems in Python
Design architecture, data flows and infrastructure foundations from day zero
Work directly with the founders on product strategy and technical direction
Move fast in an iterative environment while maintaining high engineering quality
Shape backend engineering culture, tooling and processes for a rapidly scaling product

Tech Environment

Python with FastAPI
PostgreSQL
Event driven backend services and data heavy workflows
Modern AI frameworks and agent driven systems integrated into backend pipelines
Engineers who love solving performance, scaling and reliability challenges

What You Need

5+ years experience in high growth early stage startups
BSc or MSc from a highly ranked university (Oxford Cambridge Imperial UCL, or similar)
A desire to work in a fast paced startup that pushes technical and product limits

What’s on Offer

Very competitive salary (top of market) + meaningful equity
Work directly with two founders who have built and exited successful ventures
Huge ownership over backend architecture infrastructure and technical direction
Build a category defining AI platform with the potential for global scale
Join a small elite engineering team moving at exceptional speed

If you want to join a high velocity AI venture at the earliest stage and help build something truly transformative let’s talk!

About the Company

Welcome to Tech Talent Network! We connect top-tier tech professionals with leading companies. Specializing in areas like software development, data science, and AI, we bridge the gap between exceptional talent and innovative organizations. Our Services • Talent Acquisition: Matching skilled tech professionals with exciting career opportunities. • Career Development: Offering personalized coaching and skill development. • Employer Solutions: Providing customized recruitment services. Join us to advance your tech career or fi... Know more