Senior Linux Systems Administrator

SoCode Limited; Cambridge; On-site; GBP 65,000 - 75,000; Full time

Job summary

A technology recruitment company in the United Kingdom is looking for an experienced Linux Systems Administrator. The role involves managing and troubleshooting Ubuntu and Debian systems, ensuring network performance, and implementing security practices. Ideal candidates should have a strong background in networking and the ability to work independently. This full-time position offers a competitive salary between £65K–£75K.

Qualifications

• Proven experience as a Linux Systems Administrator.
• Strong hands-on experience with Ubuntu and Debian.
• Solid understanding of TCP/IP networking, including IPv4 and IPv6.

Responsibilities

• Administer, maintain, and troubleshoot Ubuntu and Debian Linux systems.
• Configure and manage network services using IPv4 and IPv6.
• Diagnose and resolve system and network performance issues.
• Implement and maintain security best practices.

Skills

Linux Systems Administration

Networking (TCP/IP, IPv4, IPv6)

Troubleshooting skills

Scripting (Bash, Python)

Security best practices

Tools

Ubuntu

Debian

Docker

AWS

Ansible

Job description

Location: Cambridge
Salary: 65-75K
Employment Type: Full time

About the Role

We are seeking an experienced Linux Systems Administrator with a strong networking background to join our technical team. The ideal candidate will have in-depth experience managing Ubuntu and Debian-based Linux systems, along with a solid understanding of IPv4 and IPv6 networking in production environments. You will be responsible for maintaining reliable, secure, and scalable Linux infrastructure while working closely with network and cloud teams to support business-critical services.

Key Responsibilities

• Administer, maintain, and troubleshoot Ubuntu and Debian Linux systems
• Configure and manage network services using IPv4 and IPv6
• Diagnose and resolve system and network performance issues
• Implement and maintain security best practices (firewalls, access controls, patching)
• Monitor system health, availability, and capacity
• Automate routine tasks using scripting (e.g. Bash, Python)
• Document system configurations, procedures, and changes
• Collaborate with internal teams to support infrastructure projects and upgrades

Required Skills & Experience

• Proven experience as a Linux Systems Administrator
• Strong hands-on experience with Ubuntu and Debian
• Solid understanding of TCP/IP networking, including IPv4 and IPv6
• Experience with DNS, DHCP, routing, and firewall configuration
• Strong troubleshooting skills across system and network layers
• Familiarity with monitoring and logging toolsAbility to work independently and as part of a team

Desirable Skills

• Experience with virtualization or container technologies (e.g. KVM, Docker)
• Knowledge of configuration management tools (Ansible, Puppet, or similar)
• Exposure to cloud platforms (AWS, Azure, GCP)
• Basic Scripting
• Familiarity with Cisco Meraki and Catalyst networking equipment
• Understanding of high-availability and disaster recovery concepts