Platform Engineer

• Build, maintain, and improve our Kubernetes platform, including cluster management, workload reliability, and resource optimisation.
• Own and improve CI/CD pipelines to keep them fast, reliable, and scalable as the team grows.
• Write and maintain Infrastructure as Code (Terraform) for provisioning and managing cloud resources.
• Manage and evolve our GitOps workflows (FluxCD) for continuous delivery.
• Build and improve observability: monitoring, alerting, dashboards, and logging across all services.
• Create and maintain self-service tooling, templates, and golden paths that enable delivery pods to work independently.
• Respond to infrastructure incidents, participate in on-call rotations, and contribute to post-incident reviews.
• Write clear documentation and runbooks so other engineers can understand and operate the infrastructure.
• Support delivery pods with infrastructure queries, troubleshooting, and guidance.
• Contribute to security hardening, cost optimisation, and capacity planning.
• Occasionally embed with a delivery pod for a sprint to support a specific initiative (migration, new service, reliability push).

• Experience with Kubernetes in production (deploying, managing, and troubleshooting workloads).
• Solid understanding of CI/CD pipelines (GitLab CI or similar) and how to keep them fast and reliable.
• Experience with Infrastructure as Code, ideally Terraform.
• Comfortable working with Linux systems and shell scripting.
• Understanding of networking fundamentals (DNS, load balancing, firewalls, HTTP/TLS).
• Experience with at least one major cloud provider (we use a multi-cloud setup).
• Familiarity with GitOps workflows (FluxCD, ArgoCD, or similar).
• Experience with monitoring and observability tools (Prometheus, Grafana, or similar).
• Understanding of secrets management and infrastructure security principles.
• Ability to write clear documentation and runbooks.

Bonus Skills:

• Experience with FluxCD specifically.
• Familiarity with Ansible or other configuration management tools.
• Experience with object storage (Cloudflare R2, Backblaze B2, S3).
• Understanding of CDN configuration and caching strategies.
• Experience supporting developer environments and local development tooling (e.g. Devspace, Tilt, Skaffold).
• Exposure to cost optimisation for cloud infrastructure.
• Experience with incident response and on-call rotations.
• Familiarity with Ruby/Rails or Node.js application deployment (not writing the code, but understanding how to deploy and operate it).

• We work a 4-day week of 32 hours, with no reduction in pay.
• An allowance of £25 each month to spend on video games.
• Employee Assistance Programme.
• Private BUPA healthcare for you and your family.
• A very flexible training budget.
• Regular social events throughout the year. Participation is optional!

Diversity and Inclusion We celebrate diversity and want you to bring your whole self to work. Supporting an incredible community of tens of millions of users, we thrive on engaging as many views as possible to improve our platform. We see no reason why our culture should be any different.

Established in 2001, Nexus Mods is the largest video game modding platform on the internet - a household name in the PC gaming ecosystem. * 71M+ registered members * 800K+ mods for 4,000+ games * 21B+ mod downloads We're currently focused on product modernisation, driving growth and building infrastructure for the next 10 years of community-powered modding. Our Role: We're looking for a Platform Engineer to join our Platform Engineering team. You'll help build and maintain the infrastructure and developer tooling that enables every engineering team at Nexus Mods to ship faster and more safely. This is a hands-on role working across cloud infrastructure, CI/CD, container orchestration, and developer experience.