Senior Linux System Administrator Location: Hybrid (50/50) | Employment Type: Full-Time MCS Group is seeking a Senior Linux System Administrator to join an infrastructure team supporting both on-premise and cloud environments. This role is ideal for a technically strong professional who can maintain, secure, and enhance Linux systems while driving improvements through automation and best practices. Key Responsibilities: Administer and optimise Debian-based Linux servers in production. Develop automation scripts (Bash, Python) to streamline tasks. Manage networking components (DNS, routing, firewalls, VPNs). Support database technologies including PostgreSQL, MySQL/MariaDB, and AWS RDS. Monitor system performance and respond to incidents. Implement security best practices and infrastructure hardening. Participate in on-call rotations and maintain technical documentation. Collaborate across teams to ensure resilient and efficient systems. Candidate Profile: Strong experience supporting Linux (Debian preferred) in production. Proficient in scripting (Bash, Python) and automation. Solid networking knowledge (TCP/IP, DNS, routing, firewalls). Experience managing databases and cloud-hosted services. Analytical problem-solving skills with excellent communication. Desirable Experience: AWS cloud environments (VPC, EC2, Route 53). Monitoring/observability tools (Prometheus). VoIP/SIP technologies. Infrastructure as Code, CI/CD, or configuration management. Supporting high-availability or large-scale infrastructures. Package & Benefits: Competitive salary 8% combined pension Professional development support Flexible hybrid working Access to modern infrastructure & cloud technologies Employee discounts on tech and equipment To speak in absolute confidence about this opportunity please send an up-to-date CV via the link provided or contact Senior Recruitment Consultant Stuart Kennedy at MCS Group on or. Even if this position is not right for you, we may have others that are. Please visit MCS Group to view a wide selection of our current jobs. Skills: System Admin Linux Admin Linux Administrator Linux Sys Admin Sys Admin Benefits: Work From Home Hybrid Pension Progression