London Prism Digital Ltd 1-2 Paris Garden London SE1 8ND
Python Developer 2026-10-06 Backend Engineer | Python, AWS, Postgres | Profitable Market Intelligence SaaS I'm working with a self-funded market intelligence business in London who are hiring a Backend Engineer to build the APIs their biggest clients plug straight into. Penpole 2026-11-06

Python Developer

£45,000 - £60,000

London
Lee Dubar

45000 DAY

£45,000 - £60,000

GBP
APPLY NOW BACK TO VACANCIES

Backend Engineer | Python, AWS, Postgres | Profitable Market Intelligence SaaS

 

  • Salary: £45,000 - £60,000, reviewed every Q1
  • Location: hybrid, 3 days a week in central London
  • Degree: computer science, maths or a science subject from a Russell Group university
  • UK right to work required

 
I'm working with a self-funded market intelligence business in London who are hiring a Backend Engineer to build the APIs their biggest clients plug straight into. Their SaaS platform spots market-moving events early, so clients can act before the news is widely reported.
 
It's a small, profitable team. You'll work in Python, Postgres and AWS, sitting next to the co-founder and a senior full-stack engineer three days a week, with the room and the backing to lead how the whole business uses AI.
 
What They're Looking For (Non-Negotiables)

  • Python: six months to three years of commercial backend experience
  • APIs: building and consuming them
  • SQL and relational data modelling
  • AI tooling: Claude, Copilot, Cursor or similar in your daily work
  • You'll bring ideas on tooling and process, and you'll push for them
  • You're keen to learn and open to feedback from senior engineers

 
What You'll Work With

  • PostgreSQL
  • Amazon Web Services (AWS)
  • Claude API
  • Data pipelines: fetching external data and building tables
  • React, alongside the full-stack engineers

 
Nice to Haves

  • Trading, pricing or market data experience
  • Financial data feeds
  • LLM features in production, beyond coding assistants

 
Why Join / Projects
Your first project is connecting the platform directly to clients through APIs, starting with their trading clients. The client list runs from financial institutions to well-known consumer brands.

  • You'll own AI for the business, finding uses well beyond engineering and championing them across the company.
  • You'll have the co-founder's ear, with the freedom to recommend and make changes to tooling and direction.
  • You'll learn from two senior full-stack engineers, one alongside you in the office.
  • The business is self-funded and profitable, so you're building on solid ground.

 
Employee Benefits

  • Salary review every Q1
  • 25 days paid holiday
  • NEST pension
  • No overtime culture

 
It's a two-stage interview process and they're moving quickly, so apply and I'll give you a call.
 
Backend Engineer | Python, AWS, Postgres | Profitable Market Intelligence SaaS

 

Job reference: #BH-13041