We build software for clean energy installers
We're building AI-native software for clean tech installers, one system that helps the businesses behind the UK's solar, heat pump and battery boom run more installs without losing control. Join our team and make a real impact.

Open positions
Most roles are based in our Bristol, UK office; some, like sales, are fully remote across the UK. Each role is tagged below.
Engineering
Senior Design Engineer
£55k–£65k
Ready to build software that's accelerating the clean-energy rollout? We're looking for a Senior Design Engineer to own how our product looks and feels, from our small but mighty team in Bristol.
View roleLead Product Engineer
£65k–£80k
Ready to build software that's accelerating the clean-energy rollout? We're looking for a Lead Product Engineer to join our small but mighty team in Bristol.
View roleSenior Product Engineer
£55k–£65k
Ready to build software that's accelerating the clean-energy rollout? We're looking for a Senior Product Engineer to join our small but mighty team in Bristol.
View roleWhat you'd work on
Payaca runs the whole install business for solar, heat pump, battery and EV charger companies, so the work spans the CRM, quoting, scheduling, the field app, invoicing and Agent Dave, the AI built into Payaca.
One recent example is Glow, the solar design tool we launched in September. You pin the roof and Glow lays the panels out, and the design then becomes the priced quote, the materials list and the purchase orders. In October we added string wiring checks and a single-line diagram.

What the team shipped recently
3 November 2026
Put your accreditation numbers on every document, email and automation
Company custom fields hold the details your business prints everywhere, such as TrustMark and RECC numbers. Fill them in once and every template uses them.
2 November 2026
Take a fixed amount deposit
Ask for the same deposit on every job, such as £500, with an optional cap for small jobs.
28 October 2026
Come back to exactly where you were on the pipeline board
Open a project from anywhere on the pipeline board, and when you come back you are in the same place, with every card still loaded.
Why join us
Light on meetings
We keep meetings to a minimum so your time goes on the work that matters, not back-to-back calls.
AI woven through everything
Not a side project, it's how we work. An in-house organisation of agents automates the busywork across sales, support, ops and engineering, so our small team competes like a much bigger one.
Own problems end-to-end
Full autonomy, no bureaucracy. You have the authority to make decisions and ship.
Build for the energy transition
You're building infrastructure for the global clean energy transition. Every feature helps installers complete more projects.
Room to grow
We're growing fast, and so can you. Do great work and there's space to take on more, right up to building and leading your own team.
Real reward
A competitive salary, pension, and private health cover for everyone, with discretionary share options.
Don't see the right role?
We're always looking for talented people. Send us your CV and tell us how you can contribute.
Get in touch