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Lead Backend Engineer
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📣 Lead Backend Engineer — Climate Tech Nonprofit
💰 £90-£95k per year
📍 London Hybrid — 2 days in London / 3 remote
💻 Python · FastAPI · PostgreSQL · GCP · Docker · Terraform
🌍 Climate impact · Energy-system modelling · Backed by major philanthropic funders
I’m working with a climate-tech nonprofit building software that helps countries plan cleaner, more reliable electricity systems.
This isn’t a standard CRUD backend role.
The team is building Scenario Builder — a platform used for energy-system modelling, grid planning, decarbonisation analysis, and long-term infrastructure decisions.
The engineering problems are genuinely interesting: data-heavy backend systems, performance challenges, APIs, infrastructure, modelling workflows, and computational problems that have real-world climate impact.
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They’re now looking for a Lead Backend Engineer who can stay hands-on with Python while managing a small team of 3–5 engineers.
This is not a big-company Backend Lead IC role. It’s more of a hands-on backend squad lead position where you’ll set technical direction, improve backend systems, coach engineers, and help scale the platform behind Scenario Builder.
Could be a strong fit if you:
- 7+ years of experience in back-end software development
- Have strong Python backend experience
- Have worked with FastAPI, Django, or Flask
- Are comfortable with PostgreSQL, APIs, cloud infrastructure, and CI/CD
- Have some technical leadership or line-management experience
- Enjoy mentoring engineers while still staying close to the code
- Care about climate, energy systems, or software with real-world impact
- Can balance strong engineering standards with pragmatic delivery
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This is a good opportunity for someone who wants more ownership, a stronger leadership path, and engineering work that matters beyond commercial optimization.
Apply to learn more.
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