Senior Linux System Admin
Job in
Belfast, County Antrim, BT1, Northern Ireland, UK
Listed on 2026-03-10
Listing for:
MCS Group
Full Time
position Listed on 2026-03-10
Job specializations:
-
IT/Tech
Cloud Computing, Systems Administrator, IT Support, Systems Engineer
Job Description & How to Apply Below
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 Postgre
SQL, MySQL/Maria
DB, 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.
- 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.
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.
- 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 s.kennedys.
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.
#J-18808-LjbffrPosition Requirements
10+ Years
work experience
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