Platform Engineer

Kaluza is an energy intelligence and optimisation software company that develops a vertically integrated platform designed to help energy providers manage and accelerate the transition to a cleaner, smarter energy system. The platform orchestrates billions of data points into a single, self-balancing network, enabling energy companies to streamline operations, enhance customer experience, and optimise energy flows in real time using data, AI, and automation. Kaluza serves leading energy providers across the UK, Australia, Europe, and Japan, and has been recognised as number one in the Frost & Sullivan Frost Radar Innovation Index 2025.

Job title: Platform Engineer (Mid level)

Location: London or Bristol (Including Hybrid)

Salary: £41,600 - £62,000

Team: Platform Engineering

Reporting To: Engineering Manager

This role is based in the UK 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.

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 play a pivotal role in building and evolving our internal developer platform in order to empower our software teams. Your work will impact how our developers use cloud infrastructure, help teams to eliminate infrastructure toil, improve engineering productivity, reinforce security safeguards and constantly strive for greater cost efficiencies in operations.

• Engineering Foundations: Engineering a scalable, reliable and developer friendly platform to promote seamless software development, deployment and operations.
• Automation & Tooling: Develop tools to abstract the complex aspects of the platform from developers to improve developer experience and operational efficiency.
• Infrastructure as Code: Use tools like Terraform, Helm and Crossplane to manage and automate provisioning of all cloud infrastructure and champion GitOps best practices.
• Monitoring & Observability: Establish robust monitoring and logging foundations collaborating with the wider Site Reliability Engineering Function.
• Security & Reliability: Incorporate security best practices, ensure compliance, and participate in the out-of-hours on-call rota to troubleshoot and prevent recurrent issues.
• Stakeholder Coordination: Foster strong relationships with internal and external stakeholders to coordinate upgrades and hold service providers accountable.

About You

Ideally you’ll have

• Experience building and shipping production applications.
• Excellent communication and collaboration skills with a curiosity to solve problems.
• Experience using cloud platforms like AWS (preferred), Google Cloud, or Azure.
• A strong desire to (or experience in) creating and maintaining Kubernetes clusters in production.
• A solid foundational understanding of distributed systems.
• Experience with CI/CD, GitOps, and Infrastructure as Code technologies.

Where you'll work

We offer flexible working, with a requirement 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
• Flexible Bank Holidays 
• 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.