company

Senior Cloud Reliability Engineer at Jagex | Cambridge, UK

Jagex LimitedCambridge, England, United Kingdom
On-site Full-time

Clicking Apply Now takes you to AutoApply where you can tailor your resume and apply.


Unlock Your Potential

Generate Job-Optimized Resume

One Click And Our AI Optimizes Your Resume to Match The Job Description.

Is Your Resume Optimized For This Role?

Find Out If You're Highlighting The Right Skills And Fix What's Missing

Experience Level

Senior

Qualifications

Qualifications:Demonstrated expertise in ensuring reliability for large-scale, internet-facing services in production environments. Proficient in AWS services, including but not limited to VPC, EC2, ECS/EKS, ELB, ECR, Route53, KMS, IAM, and Systems Manager. Proven ability in cloud-native design, workload modernization, and Infrastructure as Code (IaC) implementation. Strong practical experience with SLIs, SLOs, incident management, root cause analysis, and resilient system architecture. Hands-on experience with Debian-based Linux environments, managing virtual machine fleets, and utilizing configuration management tools. Familiarity with observability platforms, CI/CD methodologies, containerization, and programming or scripting in Python or Java.

About the job

Location: Cambridge, UK. Candidates should live within commuting distance or be willing to relocate for onsite meetings as needed.

Role overview

Jagex seeks a Senior Cloud Reliability Engineer to help keep RuneScape’s services reliable, scalable, and responsive for players worldwide. This position sits within the Cloud Tech division and collaborates with Game, Central Tech, and Cloud Platform teams. The main focus is to drive reliability, observability, automation, and cloud-native practices across a hybrid-cloud environment.

This role combines hands-on production engineering with architectural decision-making. Projects include modernizing services, migrating workloads, and improving systems that directly affect the player experience. The team is committed to delivering reliable live services at scale.

What you will do

  • Collaborate with game and development teams to move services toward cloud-native architectures, increasing resilience, security, and cost-effectiveness in live environments.
  • Support migration of workloads from managed VPS environments to Jagex’s cloud platform, with a focus on modernization and uptime.
  • Develop and refine SLIs, SLOs, and error-budget frameworks to measure and communicate service reliability across teams.
  • Design and improve observability and alerting for logs, metrics, and traces, enabling faster detection and resolution of issues.
  • Automate operational tasks such as scaling, failover, and deployments. Build self-healing systems to reduce manual intervention and improve recovery.
  • Drive reliability improvements in Linux-based production systems, reusable Infrastructure as Code modules, and team codebases. Contribute to raising engineering standards within Cloud Tech.

Requirements

  • Experience ensuring reliability for large-scale, internet-facing production services.
  • Strong knowledge of AWS services, including VPC, EC2, ECS/EKS, ELB, ECR, Route53, KMS, IAM, and Systems Manager.
  • Background in cloud-native design, workload modernization, and Infrastructure as Code (IaC).
  • Hands-on experience with SLIs, SLOs, incident management, root cause analysis, and resilient system architecture.
  • Practical experience with Debian-based Linux environments, managing VM fleets, and configuration management tools.
  • Familiarity with observability platforms, CI/CD practices, containerization, and programming or scripting in Python or Java.

Benefits

  • Comprehensive private healthcare, including dental plan
  • Discretionary annual performance bonuses
  • At least 6% pension contributions
  • Life insurance coverage
  • Enhanced family leave policies

About Jagex Limited

Jagex Limited is a leading developer and publisher of online games, known for creating the iconic MMORPG RuneScape. Our commitment to delivering engaging player experiences drives us to innovate continuously and expand our gaming universe. With a talented team dedicated to excellence, we foster a collaborative and dynamic workplace that empowers our employees to excel.

Similar jobs

Tailoring 0 resumes

We'll move completed jobs to Ready to Apply automatically.