Senior Linux Systems Administrator - UK's Largest Public Wi-Fi Network
Location: Ipswich- Hybrid
Job Type: 06 months contract
About the Opportunity
Are you a Linux expert who thrives on maintaining massive, high-availability networks?
We are looking for a highly skilled Systems Administrator to join the team that develops and operates the UK's largest Public Wi-Fi network. Our platform powers connectivity for premium partners, everyday consumers, and mobile customers across the country. In this role, you will play a critical dual function: ensuring the security, capacity, and rock-solid availability of our existing legacy infrastructure, while actively defining and building the systems administration for our brand-new, TSA-compliant next-generation platform.
If you are passionate about sharing knowledge, hunting down root causes, and making a real, immediate impact on a network used by millions, we want you on our team.
What You Will Do
You will work closely with our network and operational teams in a collaborative, agile environment. Your day-to-day responsibilities will be varied, challenging, and highly impactful:
- Agile Collaboration: Participate in daily standups, breaking down complex infrastructure work into manageable user stories.
- Proactive Operations: Monitor service availability, perform capacity management, and troubleshoot/fix in-life operational issues.
- Deep-Dive Analysis: Conduct root-cause analysis on complex platform issues to prevent recurrence.
- Patching & Deployments: Plan and execute large-scale OS patching and change deployments. (Note: This includes extending our automated patching scope and occasional overnight/out-of-hours work to minimize service disruption or handle urgent vulnerabilities).
- Next-Gen Architecture: Help plan and define the systems administration framework for our new TSA-compliant platform.
- Security & Testing: Apply rigorous security best practices across the platform and support our network and end-to-end testing teams.
- Cross-Team Synergy: Work with network and systems/server teams to dimension and realize scalable production services.
What We Are Looking For
Essential Skills & Experience:
- Linux Mastery: Strong background in Linux system administration.
- High-Availability Scale: Proven operational experience managing large-scale, high-availability platforms.
- Virtualization & Containers: Hands-on experience with VMWare, as well as containerization technologies (Docker / Podman).
- Continuous Improvement: A relentless desire to improve best practices and deliver exceptional operational performance.
Bonus Points (Highly Advantageous):
- Networking & Auth: Solid understanding of IP networking and RADIUS.
- Scripting & DBs: Proficiency in Bash scripting and using SQL for database queries.
- Monitoring & Security: Experience with platform monitoring tools (e.g., CheckMK, Selenium) and SIEM event management tools.
- Java Ecosystem: Knowledge of Java Garbage Collection and memory management.
- Distributed Systems: Familiarity with modern caching and streaming architectures (Hazelcast caches, Apache Kafka Streaming Architectures, Cassandra Database Replication).
Apply today at Prasanna . merugu @ randstaddigital . com and help us build the future of public Wi-Fi.
Randstad Technologies is acting as an Employment Business in relation to this vacancy.
...
