Senior Software Engineer
Level inferred from job title
Job description
A Senior Engineer role at Kaluza owning a slice of the product end-to-end, from design through to production, building with AI coding agents as the default. The role sits in the Engineering team and works across a diverse stack spanning TypeScript on AWS, Go on GCP and Scala.
At a glance
- Employment
- Full-time · Employee (employment agreement)
- Work mode
- Hybrid · Bristol, United Kingdom · London, United Kingdom · Edinburgh, United Kingdom
- Languages
- English
What you'll do
- Own a slice of the product end to end: shape the problem with product and design, build the interface and the services behind it, ship it, and run it in production
- Work across the stack over time: depending on the team, work across the interface people use, the services behind it, and the APIs between them, in whatever stack your team runs
- Build with AI coding agents as your default: break work down so agents can execute, direct them, and review their output as carefully as you'd review a colleague's pull request; maintain the tests and safeguards that let agent-written code merge safely
- Stay close to the people who use what you build, directly or through forward-deployed engineers; instrument what you ship and turn what you learn into shipped changes
- Make good work the default: shape the codebase, conventions and automated checks so that agents and new teammates produce the right thing without anyone catching it in review
- Mentor the team around you: coach and mentor your peers and help improve how we work and evolve as a team
What we're looking for
- Experience shipping production software: depth of experience in either a front-end or back-end of a modern stack, and potentially an openness to stretch across both
- AI coding tools: builds with tools like Cursor or Claude Code, can walk through work shipped this way and review AI output as rigorously as a colleague's pull request
- Able to navigate a complex, high-stakes domain: keep complex energy logic legible across microservices, knowing exactly when to use sync vs async to prevent cascading failures
- Cloud and operational ownership: comfortable deploying on major cloud platforms using shared tooling; fully own software in production, including participating in an out-of-hours on-call rota
- Strong product sense: asks the "why" before building, and can describe a time when user feedback or metrics changed what was shipped
- Clear written communication: writes specs, pull request descriptions and post-mortems with enough clarity and context that either a human teammate or an AI agent can immediately act on them
- A multiplier for your team: mentors peers and proactively shapes how the team works; introduces conventions, checks or shared context that makes everyone else's output consistently better
Nice to have
- Experience building tooling around coding agents, such as MCP servers, skills or CI checks
- Experience in energy, or another real-time or regulated field
Your team
Engineering
A technology community of product-focused and data-led product and platform engineers working at scale, with a diverse ecosystem spanning TypeScript on AWS, Go on GCP and Scala.
Benefits
Discretionary bonus, a Flex Fund of 5% of salary to spend on the benefits you want most, retail discounts through Perks at Work
- 26 days' holiday, plus 26 weeks' full pay for new parents with no qualifying service period
- Private medical insurance with virtual GP, life assurance, pension scheme, free mortgage advice and eye tests
- Personal learning budget, home office budget
- Access to Furthr, our climate action app
- Paid access to Claude Code, with a budget we don't ration, and access to the systems you need through MCP
Apply
Direct apply at Kaluza
Opens the job posting at Kaluza
About Kaluza
The Energy Intelligence Platform
Kaluza orchestrates millions of real-time decisions across homes, devices, markets and grids. By combining predictive algorithms with human-centred design, Kaluza makes clean energy dependable, affordable and adaptive to everyday life.
Mission
Turning energy complexity into seamless coordination, helping energy companies overcome today's challenges while accelerating the shift to a clean, electrified future.
Key facts
- Energy
- Teams across Europe, Asia and Australia
- Joint venture with Mitsubishi Corporation in Japan
- Powers leading companies including OVO, AGL and ENGIE, as well as innovators like Volvo and Volkswagen
Partners & customers
What they value
- Play to win: Collective pride in decarbonising energy at scale
- Solve the real problem: Cutting through complexity to focus on real-world outcomes
- Build trust every day: Consistency, transparency and doing what we say
- Own the outcome: Full accountability, wins and setbacks, without ego
- Go further together: Collaboration, respect and different perspectives