DevOps Engineer — Kubernetes, CI/CD & IaC Lead

Remote Worker LTD.; Greater London; On-site; GBP 90,000 - 130,000; Full time

Benefits offered by this job

25 days annual leave

Private medical insurance (Bupa)

Cycle to Work Scheme

Gympass access

Employee share program

Enhanced parental pay & leave

Learning Time

Job summary

Radiant in London is seeking a hands-on DevOps Engineer to lead reliability and automation across our cloud, on-premises and Kubernetes-based platforms. You’ll own CI/CD pipelines, IaC with Terraform and Ansible, and the observability stack to keep AI and GPU workloads performant and scalable.

You’ll collaborate with Platform, SRE and Product Engineering to set technical direction, promote self-service tooling, and embed a DevOps culture focused on velocity, quality, and secure, reproducible

Qualifications

• Proven experience in DevOps engineering and best practices.
• Deep understanding of Kubernetes, Helm and other containerisation related tooling.
• Demonstrable scripting ability in Python, Shell and Ansible.
• Strong knowledge of branching, deployment strategies including the use of Git based version control.
• Experience with CI/CD workflows, observability, security and automation best practices.

Responsibilities

• Design, build, and continuously optimise CI/CD pipelines in GitHub Actions to support fast, reliable, and repeatable software delivery.
• Own and evolve Infrastructure as Code practices using Terraform and Ansible, ensuring infrastructure is version‑controlled, peer‑reviewed, and consistently provisioned across dev, staging, and production.
• Manage and maintain hosted application environments, ensuring high availability, scalability, and smooth deployment of services into production.
• Partner closely with Go engineers to deeply understand their development workflows and release processes, identifying and removing friction points that slow delivery.
• Own and continuously improve the observability stack — from instrumenting services with logging, metrics, and tracing, to building dashboards, alerts, and runbooks that enable proactive detection and faster resolution.
• Measure and improve the developer experience, improving productivity.
• Responsible for continuous delivery pipeline for build & deployment.
• Streamline and standardise the release process for Go services, working with engineering teams to implement versioning strategies, automated testing gates, and progressive delivery patterns such as canary or blue‑green deployments.
• Identify and eliminate bottlenecks across the software development lifecycle, reducing the time between a commit and a production deployment without compromising quality or stability.
• Champion a self‑service DevOps culture, enabling development teams to own their deployments and operational concerns through well‑designed tooling, documentation, and guardrails.

Skills

DevOps engineering

Kubernetes

Helm

Python

Git-based deployment

Tools

Terraform

Ansible

GitHub Actions

Job description

Radiant in London is seeking a hands-on DevOps Engineer to lead reliability and automation across our cloud, on-premises and Kubernetes-based platforms. You’ll own CI/CD pipelines, IaC with Terraform and Ansible, and the observability stack to keep AI and GPU workloads performant and scalable.

You’ll collaborate with Platform, SRE and Product Engineering to set technical direction, promote self-service tooling, and embed a DevOps culture focused on velocity, quality, and secure, reproducible