Tech Lead - Sustainabilty Start Up

Lead Full Stack Engineer | Up to £120k + Equity | Hybrid (2–3 days per week in office – London or Bristol)

A fast-growing, tech-first climate company is hiring a Lead Full Stack Engineer to help shape the future of clean home energy in the UK
.

This is a hands-on leadership role
. You’ll write real code, set technical direction, mentor engineers, and work closely with product and design to make sure the right things ship at the right time
.

You’ll join a small, high-calibre engineering team tackling complex, real-world problems at the intersection of software, hardware, and physical constraints
. Expect ownership, trust, and problems that actually matter.

What you’ll be doing

• Owning architecture and technical strategy for a core product area
• Designing and building complex, cross-cutting full-stack solutions
• Writing high-leverage code across critical systems
• Identifying scaling risks, bottlenecks, and technical debt — and fixing them
• Mentoring engineers and raising the bar for technical leadership
• Improving team processes, collaboration, and engineering quality

You don’t need everything, but you should enjoy full-stack ownership:

• React, Tailwind, Konva
• Node.js, Prisma
• Docker, Docker Compose
• End-to-end full stack development (frontend, backend, APIs)
• Relational databases and data modelling
• Solving ambiguous, real-world problems
• Mentoring others and contributing to healthy engineering teams

• Product-minded and curious about real user problems
• Impact-driven, balancing quality with momentum
• Comfortable with ownership and accountability

• Competitive salary + meaningful equity (options)
• 33 days holiday + up to 30 days working abroad per year
• Hybrid working (minimum 2 days/week in London or Bristol
  )
• Fortnightly full-team meetups (travel, accommodation & dinner covered)
• Workplace Nursery Benefit (Yellow Nest)
• Cycle to Work scheme
• A close-knit team, strong engineering culture, and huge growth runway

If this sounds like your kind of role,
send over your updated CV and I’ll happily share more details.

Lead Full Stack Engineer | Up to £120k + Equity | Hybrid (London or Bristol)