Product Designer

Senior / Lead Product Designer – Climate Tech Scale-up

Hybrid – London or Bristol (2–3 days in office)

£80k–£140k+ depending on level, plus meaningful equity

Two roles – Senior or Lead | Reporting to the Co-Founder & CPO

🌍 THE COMPANY

Heating our homes is one of the biggest sources of carbon emissions in the UK, and there's no route to net zero without moving millions of homes onto clean heat and renewables. The technology exists. The bottleneck is the people installing it.

This seed-funded climate tech start-up builds the software that renewables installers run their businesses on – from the first customer enquiry, through site surveys, system design and quotes, to the final compliance paperwork. Since launching in 2024 it has grown to hundreds of installation businesses across the UK, roughly halving the time they spend on each job and doubling their sales conversion.

The team is small (around 30 people), fast-moving and design-led from day one – and is now expanding beyond its first product into a full platform for the home renewables industry.

🎨 THE ROLE

The product handles some genuinely hard things: building physics, system design calculations, floor plans and compliance. Your job is to make all of that feel quick and obvious for a tradesperson who would much rather be on site than at a desk.

You'll be hands-on across the whole product:

• Desktop design tools – complex, data-rich tools for designing and quoting systems

• Mobile survey apps – including LiDAR-based property scanning

• Homeowner-facing outputs – the proposals and reports that win the job

• Collaborative workflows – for everyone from a 3-person local installer to a national energy company

Day to day, you'll:

• Take complex flows end to end, from rough idea to shipped product

• Work closely with engineers, understand data and technical constraints, and ship code yourself when it makes sense

• Spend time with installers on site, run your own research and build quick prototypes to test ideas

• Help build a design system that scales across platforms and works for low-tech users

For the Lead role, you'll also own design direction and standards across the product, build the design practice (critique, tooling, rituals) and raise the bar for two other product designers – while still doing the hardest design work yourself.

🙋 ABOUT YOU

• Senior: 3+ years in product/UI design. Lead: 6+ years, including time as the most senior designer on a product or team

• Exceptional UI craft – a very high bar for visual and interaction detail, and you can explain why your work is good

• Shipped product, not just concepts – real software people use every day. Complex tools, B2B or data-heavy products are a big plus

• A systematic thinker who enjoys technical detail, even in an unfamiliar domain

• User-obsessed – you run research with customers yourself and care about measurable impact

• Strong opinions, loosely held – you argue for your ideas and change your mind when the evidence says so

• Proactive and self-organising, happy juggling several projects and switching between strategy and pixels

Bonus points if you code or prototype in code, have built and shipped your own product, or have designed for field teams, low-tech users or operational workflows. None of these are required.

🌟 WHAT'S ON OFFER

• £80k–£140k+ depending on level, plus meaningful equity (options)

• 33 days' holiday, plus up to 30 days a year working from abroad

• Hybrid working in London or Bristol, with whole-team meetups every fortnight (travel and accommodation covered)

• Private medical cover, enhanced parental leave, workplace nursery scheme and Cycle to Work

• Real influence from day one in a small, high-calibre team where the best idea wins

APPLY BELOW!