TTC Group (Tech Talent Consulting)
Senior SRE Engineer
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Role: Senior SRE Engineer
Job type: Contract
Contract duration: 6 months (with possible extension)
Location: London, UK
Onsite: 5 days a week
MUST HAVE
Linux System Administration (Ubuntu) [MUST HAVE]
- Strong hands-on production experience not just administration or support
- Advanced troubleshooting: CPU, memory, storage, networking, and performance issues
- Deep working knowledge of Linux internals, with the troubleshooting rigor to run log analysis and root-cause analysis unaided in live environments. Surface-level administration or support experience does not meet this bar
Cloud Platforms — deploying and automation (AWS – MUST HAVE) (GCP – Good to have, not mandatory)
- Proven hands-on experience operating production AWS environments
- Deep understanding of AWS networking and architecture: VPCs, Transit Gateways, route tables, security groups, NACLs, load balancers, IAM, and DNS resolution troubleshooting
- Ability to troubleshoot infrastructure issues in production independently. Broad or certification-level cloud knowledge without day-to-day hands-on AWS operation does not meet this bar
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Networking (LB/Routing/Switching) [MUST HAVE]
- Strong understanding of TCP/IP, DNS, routing, load balancing, and network troubleshooting
- Able to diagnose connectivity and performance issues independently across distributed systems
Kubernetes (EKS/GKE/K8s) [MUST HAVE]
- Proven hands-on experience managing and troubleshooting production Kubernetes clusters (daily operational use, not just exposure)
- Experience with cluster operations, deployments, scaling, upgrades, and debugging at production scale
- Able to diagnose and resolve pod, node, and cluster-level issues independently
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Configuration Management — Terraform (MUST HAVE) / Ansible (SHOULD HAVE)
[MUST HAVE / SHOULD HAVE]
- Strong hands-on Terraform experience: writing, maintaining, refactoring, and modularising complex code in production, not just consuming or copying existing modules
- Experience with state management, remote backends, and production-grade deployments
SHOULD HAVE
- Databases: SQL/NoSQL (Cassandra knowledge would be great to have)
- Scripting / System-Programming: Python/Bash/Go/Java (at least 1)
- CI/CD: Jenkins / Concourse / GitLab CI / GitHub Actions (at least 1)
- Virtualisation: VMware
- Monitoring: Prometheus / Grafana / DataDog / Conviva / New Relic
- Logging Systems: ELK
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