Senior Software Engineer

h3 strong Senior Engineer /strong /h3 p Location: Bristol, London or Edinburgh (hybrid, three days a week in the office) /p p Level: Senior Engineer II (TL1) /p p Team: Engineering /p p Contract: Permanent /p p Reporting To: Software Engineering Manager /p p nbsp; /p p strong About Kaluza /strong /p p Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination. We help energy companies overcome today’s challenges while accelerating the shift to a clean, electrified future. /p p nbsp; /p p Our platform 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. /p p nbsp; /p p With teams across Europe, Asia and Australia, and a joint venture with Mitsubishi Corporation in Japan, we power leading companies including OVO, AGL and ENGIE, as well as innovators like Volvo and Volkswagen. /p p nbsp; /p p strong What you’ll do /strong /p p You’ll join a technology community of product-focused and data-led product and platform engineers working at scale. We have a diverse ecosystem, spanning TypeScript on AWS, Go on GCP and Scala, we index on product-minded problem solving over language purity. /p p As a Senior Engineer you’ll own a slice of the product end-to-end, from design through to production, and you’ll build AI coding agents as your default. We’re looking for someone whose judgement is worth more than their typing speed. /p p From your first day you’ll have paid access to Claude Code, with a budget we don’t ration, and access to the systems you need through MCP. Our tools and conventions evolve quickly, and you’ll directly impact how we build from here. /p p nbsp; /p ul li strong Own a slice of the product end to end: /strong shape the problem with product and design, build the interface and the services behind it, ship it, and run it in production. /li li strong Work across the stack over time /strong : depending on the team you’ll work across the interface people use, the services behind it, and the APIs between them, in whatever stack your team runs. /li li strong Build with AI coding agents as your default /strong : Break work down so agents can execute, direct them, and review their output as carefully as you’d review a colleague’s pull request. You’ll also maintain the tests and safeguards that let agent written code merge safely. /li li strong Stay close to the people who use what you build: /strong directly or through our forward-deployed engineers: a supplier’s operations team, a customer plugging in a car at night. Instrument what you ship so you can see how it’s used, and turn what you learn into shipped changes. /li li strong Make good work the default: /strong shape the codebase, conventions and automated checks so that agents and new teammates produce the right thing without anyone catching it in review. /li li strong Mentor the team around you: /strong Coach and mentor your peers and help improve how we work and evolve as a team. nbsp; /li /ul p nbsp; /p p strong What you’ll bring /strong /p p nbsp; /p p These are the practices and behaviours we see most in our top engineers and value deeply, but we don't expect everyone to tick every single box. If you're excited by the role and can see yourself thriving here, we’d love to hear from you. /p ul li strong Experience shipping production software: /strong You have a depth of experience in either a front-end or back-end of a modern stack, and potentially an openness to stretch across both as you navigate our diverse ecosystem. /li li strong AI coding tools: /strong You build with tools like Cursor or Claude Code, can walk us through work you’ve shipped this way and review AI output as rigorously as a colleague’s pull request. /li li strong Able to navigate a complex, high-stakes domain: /strong You keep complex energy logic legible across microservices, knowing exactly when to use sync vs async to prevent cascading failures. /li li strong Cloud and operational ownership: /strong You're comfortable deploying on major cloud platforms using shared tooling. You fully own your software in production, which includes participating in an out-of-hours on-call rota. /li li strong Strong product sense. /strong You ask the “why” before building, and you can describe a time when user feedback or metrics changed what you shipped. /li li strong Clear written communication. /strong You write 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. /li li strong A multiplier for your team: /strong You mentor peers and proactively shape how the team works; introducing conventions, checks or shared context that makes everyone else’s output consistently better. /li /ul p strong It would be great if you have /strong /p ul li Experience building tooling around coding agents, such as MCP servers, skills or CI checks /li li Experience in energy, or another real-time or regulated field /li /ul p strong Our Values /strong /p p Five values guide how we work at Kaluza: /p p nbsp; /p ul li strong Play to win: /strong Collective pride in decarbonising energy at scale. /li li strong Solve the real problem: /strong Cutting through complexity to focus on real-world outcomes. /li li strong Build trust every day: /strong Consistency, transparency and doing what we say. /li li strong Own the outcome: /strong Full accountability, wins and setbacks, without ego. /li li strong Go further together: /strong Collaboration, respect and different perspectives. /li /ul p nbsp; /p p strong Our Perks /strong /p p nbsp; /p ul li strong Time off and family: /strong 26 days’ holiday, plus 26 weeks’ full pay for new parents with no qualifying service period /li li strong Health and security: /strong Private medical insurance with virtual GP, life assurance, pension scheme, free mortgage advice and eye tests /li li strong Pay and flexibility: /strong Discretionary bonus, a Flex Fund of 5% of salary to spend on the benefits you want most, retail discounts through Perks at Work /li li strong Growth and setup: /strong Personal learning budget, home office budget /li li strong Climate: /strong Access to Furthr, our climate action app /li /ul p nbsp; /p p strong Come as you are /strong /p p nbsp; /p p We want to meet people from all walks of life. The more inclusive we are, the better our work will be, and we recognise talent on merit and potential. If you’re excited about the role but don’t tick every box, we’d still love to hear from you. /p p nbsp; /p p This role requires an existing right to work in the UK. We can’t offer visa sponsorship, but we review sponsorship role by role, so keep an eye on our careers site for future opportunities. /p p nbsp; /p p Find out more on our a href= https://www.kaluza.com/careers/ careers page /a and a href= https://www.linkedin.com/company/kaluza/ LinkedIn /a . Our Applicant Data Protection Policy is a href= https://www.kaluza.com/applicant-data-protection-notice/ here /a . /p Find Jobs in United Kingdom on Arbeitnow