Back End Developer

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Job Description

Role: Senior Python Backend Engineer

Location: London King's Cross - full time on site

Salary: up to £200k base + equity


We are partnered with a high-growth AI-driven platform that helps large enterprises automate complex, data-heavy workflows. The company is well-funded with. over $90M from top VC's, scaling rapidly, and already working with globally recognised organisations in a highly regulated environment.


The Role

As a Senior Backend Engineer, you’ll help design and scale the backend systems behind a sophisticated AI platform. You’ll work on high-performance services, complex data pipelines, and secure infrastructure, collaborating closely with ML, product, and platform teams.


This is a hands-on senior role with real influence over architecture, technical decisions, and engineering standards as the company continues to scale.


What You’ll Be Doing

  • Building and scaling backend services and APIs in Python
  • Designing and optimising data pipelines and databases
  • Working closely with ML engineers to deploy models into production
  • Implementing async processing, caching, and event-driven systems
  • Ensuring security, reliability, and compliance in production systems
  • Improving performance, scalability, and system resilience


The ideal candidate will:

  • 5+ years of backend engineering experience
  • Strong Python experience (FastAPI, Flask, or Django)
  • Have experience working at a previous startup/scale up
  • Solid knowledge of PostgreSQL and Redis
  • Experience with async task queues and message brokers
  • Cloud experience (Azure, AWS, or GCP)
  • Strong understanding of distributed systems and security best practices


Why Join

  • Competitive salary + equity
  • Direct exposure to founding team
  • Opportunity to build a category-defining AI platform


Fast-moving, demanding, and high-impact - this role is for engineers who enjoy building serious systems in evolving environments.

Apply
Location:
City Of London
Job Type:
FullTime
Category:
Technology

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