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? Lead Backend Engineer – Climate Tech

? Non-Profit | Major Philanthropic Backing | Real Engineering Problems

? London (Hybrid, 3 days per week)

? Python, FastAPI, PostgreSQL, GCP, Docker


I'm working with a fast-growing climate-tech non-profit tackling one of the most important infrastructure challenges in the energy transition. Backed by some of the biggest names in climate philanthropy, this is a organisation doing real work - not reports, not consultancy, actual software that shapes energy investment decisions globally.


They're hiring a Lead Backend Engineer to lead a small squad, own the technical direction, and get stuck into some genuinely interesting engineering. Think computational complexity, mathematical optimisation, and performance challenges at scale - a long way from your average API job.


⚡ Who they're looking for:

  • 7+ years back-end experience, strong Python
  • Some line management or technical leadership under your belt - enough to be credible to the engineers around you
  • Comfortable with cloud infra, databases, and CI/CD
  • Pragmatic and adaptable - you've worked somewhere fast-moving and just got on with it
  • Motivated by the mission, not just the stack


If this sounds like something you'd want to hear more about, apply below!