Linux System Administrator (Rickmansworth)

Linux Systems Engineer

Are you ready to accelerate your career in a technically challenging and meaningful environment?

We’re looking for a Linux Systems Engineer to join a tight-knit internal IT team supporting a mission-critical infrastructure that underpins life-saving technology used across the globe. You’ll play a key role in deploying, upgrading, and maintaining software and infrastructure systems across multiple environments.

This is a hands-on, high-expectation role ideal for someone who wants to be technically stretched , sharpen their skills , and work with a leader committed to making you one of the best professionals in the industry. If you're comfortable in a Linux terminal, confident with scripting, and hungry to learn in a complex real-world environment, this could be your proving ground.

What You’ll Be Doing

• Supporting and improving a globally distributed infrastructure estate with varied Linux systems (Debian/Ubuntu)
• Managing live database systems (MySQL/MongoDB), backups, and performance tuning
• Troubleshooting day-to-day technical issues — expect some days to be quiet and others to be all-hands-on-deck
• Working alongside sysadmins and software engineers on infrastructure enhancements and automation

What You’ll Need

• Strong Linux command line and scripting experience (Bash, etc.) – 80% of your time
• Working knowledge of Windows environments – 20%
• Solid understanding of networking concepts (TCP/IP, DNS, VPNs)
• Experience with virtualization (VMWare/Hyper-V)
• Exposure to cloud technologies (AWS essential; Azure/GCP a bonus)

Nice to Have

• Experience with customer-facing deployments or upgrades
• Familiarity with PHP, Node.js, Python, Java, or JavaScript from an infrastructure perspective
• Awareness of compliance, security policies, and access controls
• Any exposure to Site24x7, LDAP, WSUS, or Active Directory
• Ability to work toward (or already hold) UK security clearance

Why This Role Stands Out

• Impactful Work – The systems you’ll support help save lives and protect communities
• Career Growth – Work directly with a seasoned, high-performing lead who’s helped engineers launch international careers
• Real Challenge – You’ll gain experience across infrastructure, cloud, security, and systems in a genuinely complex environment