Senior Systems Administrator
Day rate: £260 per day
IR35 status: Inside IR35
Contract: Initial 6 month contract with potential extension
Hours: hours per week
A large NHS organisation is seeking an experienced Senior Systems Administrator to support and maintain critical IT and Operational Technology (OT) systems across its Estates and Facilities environment. This is a hands-on role operating at the intersection of IT infrastructure, security and operational systems within a complex healthcare setting.
The role
You will be responsible for the administration, security and ongoing optimisation of business-critical systems that support facilities management and hospital operations. Working closely with internal teams and third-party suppliers, you will ensure systems are reliable, secure, compliant and well documented.
The role sits within a central digital and communications function and plays a key part in supporting essential services across a large acute hospital environment.
Key responsibilities
1. Administer and maintain IT and OT systems, ensuring performance, availability and regulatory compliance
2. Carry out advanced system monitoring across servers, hardware, applications and key processes
3. Manage IT assets with automated monitoring and reporting
4. Enforce cybersecurity standards, vulnerability management and security best practice
5. Support security patching, disaster recovery, business continuity and recovery processes
6. Manage and support Microsoft 365 services including SharePoint Online and Teams
7. Oversee identity and access management using Microsoft Entra ID, including MFA and conditional access
8. Provide networking and infrastructure support covering WiFi, firewalls, VPNs, DNS, DHCP and TCP/IP
9. Act as an escalation point for 2nd and 3rd line technical issues
10. Troubleshoot complex issues across hardware, software, cloud and networking environments
11. Work closely with third-party suppliers and maintain clear system and configuration documentation
Skills and experience required
12. Strong hands-on experience as a Systems Administrator in a complex enterprise environment
13. Solid knowledge of Windows Server, cloud-based systems and supporting infrastructure
14. Experience working with Microsoft 365 and identity and access management
15. Good understanding of networking fundamentals
16. Proven experience supporting secure, highly available systems
17. Strong documentation, analytical and problem-solving skills
18. Ability to work collaboratively with technical and non-technical stakeholders
19. Experience working within the NHS or wider public sector is highly desirable
Why apply
20. Opportunity to support critical healthcare services
21. Work within a large-scale, complex digital environment
22. Competitive day rate inside IR35
23. Potential for contract extension
If you are an experienced Senior Systems Administrator with strong infrastructure, security and cloud experience and are comfortable working in regulated environments, this could be a strong next contract.