Senior Linux System Administrator

Linux Infrastructure Engineer – Hybrid (Central London) | £65,000–£70,000

We are seeking a skilled Linux Infrastructure Engineer to join our team in a hybrid role based in Central London.

Key Responsibilities:

• Deploy, configure, and manage Linux-based servers and services.
• Enhance and maintain custom system services and OS-level configurations.
• Manage Kubernetes clusters and containerized workloads.
• Administer GitLab infrastructure for CI/CD processes.
• Operate and maintain Kafka clusters for real-time data pipelines.
• Diagnose and resolve issues across systems, networks, containers, and applications.
• Use observability tools (Grafana, Prometheus, Kibana, Elasticsearch) to monitor system health.
• Automate system management tasks using Ansible.
• Participate in an on-call rotation to support global operations.

Required Skills & Experience:

• Strong hands-on Linux (RHEL/CentOS/Rocky) administration, including kernel tuning and system optimization.
• Production-level experience managing Kubernetes clusters.
• Proficiency with GitLab for version control and CI/CD workflows.
• Solid understanding of Kafka in high-throughput environments.
• Experience with observability tools such as Grafana, Prometheus, Kibana, and Elasticsearch.
• Expertise in Ansible for automation and configuration management.
• Strong problem-solving skills across infrastructure layers (compute, network, OS, containers).