Senior Software Engineer
Kaluza · Bristol; Edinburgh; London
What this role requires
4 requirements, read out of the advert rather than guessed from the job title:
Also mentioned, not required: Node.js, Terraform, GitActions, Kubernetes, Docker, Kafka, GraphQL, English (B2). Worth having, but their absence is not what gets a CV filtered out.
See how often each of these is required across open backend roles in Europe.
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Job description
Location : Bristol, London, Edinburgh UK Hybrid.
Level : C3
Team : Engineering
Salary : £60,000 - £80,000
This role can be based in our London, Bristol or Edinburgh offices, and requires an existing right to work in the UK.
At this time, we are not able to offer visa sponsorship for this role. We are committed to building a diverse, global team and our sponsorship policy is evaluated on a role-by-role basis. We encourage you to keep an eye on our careers site to stay informed about future opportunities where we are able to offer visa sponsorship.
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Kaluza Overview
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.
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.
With teams across Europe, North America, 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.
What will I be doing?
You'll be joining the Kaluza Technology community. We’re a large team of both data-led and product focused Software and Production Engineers, pushing the boundaries of technology and working at an extraordinary scale.
As a collective we strive for engineering greatness and by ensuring best practices across the board of the community.
Our tech stack is fluid, but broadly you can find yourself working with:
Typescript, Node JS, Terraform, Gitactions, Kubernetes, Docker, AWS, Kafka, GraphQL
Responsibilities
Design, build, and maintain scalable backend services using TypeScript and
Work with event-driven systems and message queues to power real-time, reliable features.
Collaborate with product managers, designers, and other engineers to build customer-focused solutions.
Lead by example, contributing to high-quality code, mentoring others, and fostering best practices.
Own services end-to-end, from architecture to production monitoring and continuous improvement.
Optimise system performance and data design, working with SQL or NoSQL databases as appropriate.
Leverage cloud platforms (especially AWS) and serverless architectures to build reliable, scalable solutions.
Contribute to a positive engineering culture by sharing knowledge and supporting your team.
About You
Ideally, you'll have/be:
Solid experience developing backend applications, ideally in TypeScript or a willingness to pick it up quickly.
Understanding of event-driven systems and working with queues
Extremely comfortable working with cloud infrastructure (AWS preferred), especially serverless technologies.
Experience with database design, optimisation, and maintenance (SQL or NoSQL).
Passionate about high-quality software and solving real customer problems.
Strong communication and collaboration skills, you enjoy mentoring and knowledge sharing.
Proactive mindset and ability to thrive in ambiguity.
Where you'll work
We offer flexible working, with an expectation of 3 days a week in the office. This gives us the best of both: real time together to collaborate and build relationships, with the flexibility to work in the way that suits you best the rest of the week.
Kaluza Values
Here at Kaluza we have five core values that guide us as a business:
Play to win, Solve the real problem, Build trust every day, Own the outcome, Go further together.
Our Perks
Pension Scheme
Discretionary Bonus Scheme
Private Medical Insurance + Virtual GP
Life Assurance
Access to Furthr - a Climate Action app
Free Mortgage Advice and Eye Tests
Perks at Work - access to thousands of retail discounts
5% Flex Fund - to spend on the benefits you want most
26 days holiday
Progressive Leave Policy - With no qualifying service periods, including 26 weeks full pay if you have a new addition to your family
Personal Learning Budget - Upskill, learn and grow!
Home Office Budget
And more!
We want the best people
We’re keen to meet people from all walks of life — our view is that the more inclusive we are, the better our work will be. We want to build teams which represent a variety of experiences, perspectives and skills, and we recognise talent on the basis of merit and potential.
We understand some people may not apply for jobs unless they tick every box. But if you're excited about joining us and think you have some of what we're looking for, even if you're not 100% sure, we'd still love to hear from you.
Find out more about working in Kaluza on our careers page and LinkedIn . You can also find our Applicant Data Protection Policy here .
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