Platform Engineer (C3)

Kaluza; City of Edinburgh; Hybrid; GBP 70,000 - 110,000; Full time

Job summary

Kaluza, the Energy Intelligence Platform, is seeking a Platform Engineer to evolve our internal developer platform. Based in the UK, you\'ll work with software teams to own technical decisions, drive best practices, and optimize cloud operations at scale.

You will design scalable foundations, automate provisioning with Terraform, Helm, and Crossplane, and strengthen security and observability across the platform. The role reports to Elinor Ni Chathain and offers collaboration across teams.

Qualifications

• Production systems design, build and operate at scale.
• Strong leadership and collaboration with a passion for mentoring.
• Deep cloud experience with AWS, GCP, or Azure and Kubernetes.

Responsibilities

• Design and build a scalable, reliable internal developer platform.
• Drive self-service tooling and reduce platform complexity.
• Automate provisioning with Terraform, Helm and Crossplane; adopt GitOps.
• Establish robust monitoring and observability with SRE collaboration.
• Embed security controls and participate in on-call rota.
• Mentor engineers and coordinate with stakeholders.

Skills

Production systems

Technical leadership

Cloud platforms

Kubernetes

CI/CD pipelines

GitOps

Infrastructure as Code

Tools

Terraform

Helm

Crossplane

Job description

Job title: Platform Engineer

Team: Platform Engineering

Reporting to: Elinor Ni Chathain (Engineering Manager)

Location: London, Bristol or Edinburgh

Level: C3

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 evolving and elevating our internal developer platform to empower our software teams. Beyond day-to-day platform engineering, you'll take ownership of technical decisions, drive best practices across teams, eliminate complex infrastructure toil, reinforce enterprise security safeguards, and optimize cloud operations at scale.

• Engineering Foundations: Design and build a scalable, reliable, and developer-friendly platform that sets the standard for seamless software development and operations.

• Automation & Tooling: Drive self-service tooling and abstractions to hide platform complexity from developers, drastically improving developer experience and team velocity.

• Infrastructure as Code: Lead the use of Terraform, Helm, and Crossplane to automate provisioning and champion GitOps best practices across all cloud infrastructure.

• Monitoring & Observability: Establish robust monitoring, logging, and tracing foundations in close collaboration with the wider Site Reliability Engineering function.

• Security & Reliability: Embed automated security controls, ensure compliance, and participate in the out-of-hours on-call rota to troubleshoot and solve complex, systemic issues.

• Technical Leadership & Collaboration: Mentor engineers in the team, foster strong relationships with internal stakeholders to coordinate technical upgrades, and hold service providers accountable.

About You

Ideally you’ll have:

• Strong experience designing, building, and operating production applications at scale.

• Excellent technical leadership, communication, and collaboration skills with a passion for mentoring others.

• Deep expertise with cloud platforms like AWS (preferred), Google Cloud, or Azure.

• Hands‑on experience architecting, managing, and maintaining production Kubernetes clusters.

• A deep understanding of distributed systems and resiliency patterns.

• Proven expertise with CI/CD pipelines, GitOps patterns, 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.