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.
About Payaca
Payaca is the operating system for clean-energy installers, the businesses putting solar, heat pumps, battery storage and EV chargers on homes and businesses across the UK and US. We bring quoting, scheduling, job management, invoicing and compliance into one place built for how these companies actually work.
These are growing businesses that have outgrown spreadsheets and generic trade software. We give them tools designed for their world, so they can win more work, run more efficiently, and scale.
Clean energy is being installed faster than ever, and the installers doing that work are at the centre of it. The better they run, the faster it happens.
About the role
As a Senior Product Engineer you’ll shape what we intend to build, and then make it real. You’ll own a product domain end to end and be accountable for outcomes in it, not just output. This is a chance to have a direct impact on our product and our mission.
We’re full-stack by default. You’ll work across our backend monolith, and our web and mobile apps. Specialists are very welcome, but expect to touch a bit of everything.
What you’ll do
- Own a product domain end to end, from shaping the problem with the team through to shipping it and running it in production
- Turn vague problems into shippable plans, taking responsibility for resolving most of the ambiguity yourself
- Delegate days worth of human work to multiple agents, using thoughtful context management, and knowledge of model weaknesses to save your limited time for the parts that most benefit from judgement
- Design cross-cutting architecture and weigh up the long‑term trade‑offs
- Author and curate the shared agent context (specs, skills and docs) necessary to delegate ever more complex work
- Respond to incidents in your area, and keep your features healthy in production
- Set patterns others adopt, mentor your peers, and raise the bar through code and spec review
What we’re looking for
- 4+ years building production software with TypeScript
- Strong in at least one of React or Node.js
- Happy following a problem wherever it leads, from front to back
- A track record of owning large features from conception to maintenance in production
- Comfortable taking a goal and turning it into a plan
- 3+ months getting real work done with AI coding agents, not just autocomplete, but delegating meaningful chunks of work
- A high bar for quality, and the discipline to never merge code you can’t stand behind, whether you or an agent wrote it
- A healthy curiosity about clean‑energy installers and the businesses they run
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