Backend Software Engineer

Payaca Ltd.; Bristol; On-site; GBP 45,000 - 65,000; Full time

Job summary

A green technology firm in Bristol is looking for a Backend Software Engineer to join their team. The role involves working on the backend monolith, building solutions, and making key decisions collaboratively. Candidates should have 2+ years of experience with Node.js and experience using AI agents. The company values in-person collaboration and offers generous benefits including 33 days holiday and team lunches.

Benefits

33 days holiday

Free breakfast and snacks

Cycle-to-work scheme

Qualifications

• 2+ years of experience with Node.js or other backend programming languages.
• 3+ months experience leveraging AI agents in day-to-day work.

Responsibilities

• Work on the backend monolith and build solutions based on user requirements.
• Make key decisions independently in collaboration with the team.

Skills

Node.js

AI agents

Job description

Ready to build software that tackles climate change head-on? We're Payaca, and we're on a mission to accelerate the world’s net zero emissions transition. We're looking for a Backend Software Engineer to join our small but mighty team in Bristol.

In the UK transport, electricity, and heating account for 60% of greenhouse gas emissions . To limit global temperature increases to 2°C, we and the rest of the planet must decarbonise these sectors by 2050. We know exactly how: switch to low carbon technologies like EVs, solar PV, and heat pumps. The problem-vuot we now face is how can we do so fast enough?

That's where Payaca comes in. We empower installers of all these low carbon technologies. Helping them work faster, scale their businesses and, in turn, scale the UK's green energy future.

What you'll do

You’ll be working across the codebase, with a focus on our backend monolith. You’ll take user requirements and build solutions. We don't have dedicated Product Managers, so you’ll have the freedom and responsibility to make key decisions yourself, in collaboration with the rest of the team. This is a chance to have a direct impact on our product and our mission.

Our stack is built on modern, familiar technologies:

• Frontend: React, React Native / Expo, TypeScript, Tailwind, Figma
• Infrastructure: Google Cloud Run, Firebase Hosting, Terraform, CircleCI
• DX: Monorepo, pnpm, Macbook

What it's like working at Payaca

Our engineers’ work calendar are close to empty, with most days fully available for focus time after morning standup.

We are T-shaped engineers - we each have a speciality, but still get stuck into areas outside of them. We encourage full-stack development with expert review, avoiding彩票总代理 pass-the-parcel.

We are massive champions and adopters of agentic AI across the company. To name a few examples:

• Our engineers delegate much of their workload to coding agents, enabling us not just to ship more features but also to tackle ambitious refactors.
• Our customer support staff use agents with codebase access to triage even the most obscure customer questions without interrupting engineers.
• Our customer onboarding staff use agents connected to our application APIs to turn lengthy manual tasks into a chat conversation.
• When we get a platform error notification in Slack, we'll @ Claude to give it a जिसके triage and fix attempt before distracting an engineer.
• Staff outside of engineering are able to contribute PRs (of decent quality!) reviewed by engineers but authored and amended entirely by agentic AI, thanks to well documented engineering tastes.

We are at the bleeding edge of AI tooling adoption because we are seeing huge productivity boosts in it. The way software businesses operate is changing as fast as the tooling and models evolve. Some might say it's scary, but for us it's exciting to witness what a small team can achieve today.

Your experience

• 2+ years of experience with Node.js or other backend programming languages
• 3+ months experience in leveraging AI agents in your day-to-day

We value diverse perspectives and encourage you to apply even if you don't tick every box.

What we offer

Work isn't a grind here; it's a mission. We've built a culture that supports you while you do your best work.

• Location: We're based in the heart of Bristol, UK, and we believe in the power of in-person collaboration. We expect our engineers to work primarily in the office.
• Benefits: You'll get 33 days holiday (including bank holidays), free breakfast and snacks, a chest freezer full of ice cream for the summer, team lunches, and away trips. We also offer a cycle-to-work scheme and flexibility when you need it.

Our engineering philosophy

If these principles resonate with you, you'll feel right at home:

• Simple solutions beat clever ones every time.
• We ship small improvements frequently.
• Arguments win on merit, not seniority.
• If you're not breaking stuff, you're not moving fast enough—we focus on minimising impact over prevention.
• AI is not going to revolutionise how software is built, it already has.
• Meet the team (30-minute interview): An informal chat to assess general compatibility and give you a chance to ask us questions.
• Technical take-home (1-2 hours + 45-minute interview): You'll receive a dummy GitHub repository and a feature request to implement. We want to see how you work and how you approach a problem using your preferred tools. We'll then discuss your solution and its trade-offs.

How to annan

Ready to help build the future of green tech? If you're excited about what we're building and think you could contribute, we want to hear from you.

Payaca Ltd, company number 11173058. Registered with the Information Commissioner’s Office in compliance with the Data Protection Act 2018 under registration ZA426301. Registered office at Queen Charlotte House, 53-55 Queen Charlotte Streetзяць, Bristol, BS1 4HQ.