AWS DevOps Engineer Senior Site Reliability Engineer - Infrastructure Contract - Inside IR35 - Fulltime Location: London - Hybrid (3 days per week onsite) SC Cleared or Eligible for SC Clearance Your responsibilities: • Deploy, configure, and monitor AWS services ensuring high availability, scalability, and security. • Respond to and resolve infrastructure and service incidents with root cause analysis and preventive measures. • Handle change requests, track recurring issues, and work on long-term fixes to improve system stability. • Implement and maintain observability solutions using Prometheus, Grafana, and Splunk. • Write PromQL queries for custom monitoring dashboards, alerting, and diagnostics. • Manage and optimize CI/CD pipelines for automated testing, deployment, and rollback strategies. • Develop and maintain automation scripts in Python, Bash, Go, or SQL for routine infrastructure tasks. • Utilize Git-based workflows for infrastructure changes, version control, and automated deployments. • Operate, troubleshoot, and optimize Kubernetes clusters and containerized workloads. • Participate in a rotating on-call schedule to ensure 24/7 availability of production systems. Essential skills • Working knowledge and prior hands-on experience using AWS services at the DevOps Engineer level • Incident, change & problem management experience. This role is heavily operation-oriented, including on-call requirements • Strong background in setup & operation of enterprise observability tooling, specifically Prometheus, Grafana and Splunk, including usage of PromQL • Proficient in one or more languages of Python, Go, Bash, SQL • Familiar with GitHub / GitOps / container orchestration / Kubernetes operations • Working configuration and deployment management experience with CI/CD Desirable skills • Hands-on experience with Terraform or CloudFormation for infrastructure provisioning and automation. • Strong knowledge of Splunk for log analysis and troubleshooting. • Strong problem-solving skills and analytical thinking.