Lead Product Engineer (Frontend-Leaning Full Stack)

Central London (Hybrid, 2 days per week)

Up to £100,000 + Equity

Our client is working on one of the fastest-growing sources of emissions: cloud infrastructure.

Most climate tech companies talk about impact. This team is delivering it. Their platform processes huge volumes of cloud and carbon data, helping global organisations understand and reduce their environmental footprint.

Build the future of sustainable cloud and make it a great product to use

What you will do

• Own and evolve the frontend architecture using React and Next.js
• Set the standard for UI and UX quality
• Build and scale a consistent component system
• Work across the stack, including APIs and backend systems in Python
• Partner closely with founders and stakeholders on product decisions
• Ship features end to end, from concept through to production

Why this role stands out

• Your work directly contributes to reducing emissions at scale
• Product thinking is valued as much as technical execution
• You will have real ownership and influence
• Modern development workflows, including AI tools like Claude Code and Cursor
• A small, focused team that moves quickly without unnecessary process

You will do well here if you

• Care about how products feel, not just how they work
• Have experience in a startup, scale-up, or agency environment
• Are comfortable working with ambiguity and making decisions
• Enjoy working closely with founders and contributing ideas
• Use or are interested in AI tools as part of your workflow
• Bring a collaborative mindset and a sense of humour

Tech stack

React, Next.js, Python (FastAPI), AWS, Terraform

Plus modern AI tooling including Claude Code and Cursor

What you get

• Up to £100,000 base salary
• Equity
• Hybrid working with a Central London office
• Flexible hours and a high-trust environment
• Two weeks of global remote working each year
• Opportunities to attend international conferences
• Learning and development budget
• Additional holiday for each year you stay

This is a well funded, fast growing climate tech company at an important stage. The platform is already strong. Now the focus is on building a product experience that matches the technical depth. You will play a key role in that shift while working on a problem that has real world impact.