SeniorCloudReliabilityEngineer

**Location: Cambridge, UK** – Applicants should be based (or willing to relocate) within a comfortable commuting distance of our office to attend onsite as required. As a Senior Cloud Reliability Engineer in Cloud Tech, you’ll help keep RuneScape reliable, scalable and high-performing for players around the world. You’ll work across Game, Central Tech and Cloud Platform teams to improve reliability, observability, automation and cloud-native adoption on Jagex’s hybrid-cloud platform. This is a role with real breadth: hands-on production engineering, architecture influence across multiple teams, and the chance to modernise services that directly affect player experience. You’ll join a highly experienced team and help shape how Jagex delivers reliable live services at scale. **What you’ll be doing** * Partner with game and development teams to move services toward cloud-native architectures, improving resilience, security and cost efficiency across live environments. * Support the migration of workloads from managed VPS environments onto Jagex’s cloud platform, helping teams modernise safely without compromising uptime. * Define, embed and improve SLIs, SLOs and error-budget thinking so service reliability is measurable and better understood across teams. * Design and enhance observability and alerting across logs, metrics and traces, giving teams faster insight into issues and reducing time to detection. * Automate operational tasks such as scaling, failover and deployments, while building self-healing mechanisms that reduce toil and improve recovery. * Contribute hands-on reliability improvements across Linux-based production systems, reusable IaC modules and team codebases, while helping raise engineering standards across Cloud Tech. **What we’re looking for** * Proven experience owning reliability for large-scale, internet-facing services in production. * Demonstrable AWS expertise across services such as VPC, EC2, ECS/EKS, ELB, ECR, Route53, KMS, IAM and Systems