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3rd Line / Systems Administrator, Nottingham
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Client:
Oscar Technology
Location:
Nottingham, United Kingdom
Job Category:
Other
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EU work permit required:
Yes
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Job Reference:
9de0c0e61e46
Job Views:
6
Posted:
12.08.2025
Expiry Date:
26.09.2025
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Job Description:
£40, - £45, DOE On-Call Allowance Bonus Benefits
About the Role:
We're looking for a Third Line Systems Administrator to join a dynamic managed hosting provider, acting as the final point of escalation for complex infrastructure issues. You'll play a key part in improving, automating, and optimising core systems - making a genuine impact in a business that values technical ownership and continuous evolution.
This is a hands-on, senior-level role suited to engineers with strong experience in Linux, VMware, Cisco, and infrastructure automation, ideally in a managed services or hosting environment.
Key Responsibilities:
* Serve as the final escalation point for critical infrastructure incidents and issues
* Administer and maintain Linux systems (RedHat, CentOS, Ubuntu)
* Manage virtualisation environments (VMware vSphere, ESXi, vCenter)
* Support and configure Cisco network infrastructure (routing, switching, firewalls)
* Drive improvements through automation (Bash, Python, Ansible, Puppet)
* Lead infrastructure upgrade and optimisation projects
* Work closely with internal teams and clients to ensure uptime and performance
* Contribute to disaster recovery planning, monitoring, and best practice documentation
* Participate in an on-call rota
What We're Looking For:
* Proven 3rd line / senior systems admin experience in a hosting or MSP setting
* Deep understanding of Linux server administration
* Strong VMware virtualisation skills
* Cisco networking knowledge (ideally CCNA or equivalent)
* Experience automating infrastructure with scripting or config management tools
* Ability to take ownership, troubleshoot end-to-end, and drive real change
* Public cloud experience (AWS, Azure, OpenStack)
* Storage (SAN/NAS) and backup tools (Veeam, Rubrik)
* Monitoring platforms (Zabbix, PRTG, Nagios)
Why Join?
* Be the go-to technical expert in a close-knit, high-performing team
* Improve real-world systems, not just maintain them
* Clear progression opportunities into architecture or DevOps pathways
* Flexible hybrid working and supportive leadership
* Funded certifications and a strong focus on your technical development
Apply today to become the engineer that makes a real difference or reach out for a confidential chat.
Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy.
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