Senior IT Systems Administrator

Reed; Tees Valley; On-site; GBP 40,000 - 60,000; Full time

Job summary

A well-established organisation in the UK is seeking a Senior IT Systems Administrator to own its IT infrastructure across multiple sites. The ideal candidate will have strong experience with Windows Server and M365, excellent troubleshooting skills, and a proactive mindset. Responsibilities include managing servers, supporting users, and driving improvements in performance. This role offers an opportunity to work in a genuinely supportive and value-driven culture.

Qualifications

• Strong experience in a similar IT Systems Administrator role.
• Proficiency with Windows Server and M365.
• Excellent troubleshooting skills and proactive mindset.

Responsibilities

• Manage and resolve support tickets across teams.
• Administer Windows/Linux servers and virtual environments.
• Implement cybersecurity best practices and disaster recovery plans.

Skills

Windows Server

M365

Networking

Troubleshooting

Tools

Active Directory

SQL Servers

Telephony Systems

Job description

A well-established organisation with multiple UK sites is seeking a Senior IT Systems Administrator to take ownership of its IT infrastructure across a growing network of offices.

This is a hands-on role ideal for someone whoenjoys solving complex technical challenges and is looking for agenuinely supportive, value-driven culture.You’ll be responsible for maintaining servers, networks, and systems, supporting users, and driving improvements in performance, security, and efficiency.

Key Responsibilities:

• Manage and resolve support tickets across teams
• Administer Windows/Linux servers, virtual environments, and network components
• Maintain Active Directory, SQL Servers, and telephony systems
• Implement cybersecurity best practices and disaster recovery plans
• Collaborate with internal developers and external IT partners

What You’ll Need:

• Experience within a similar role
• Strong experience with Windows Server and M365
• Proficiency in networking and monitoring tools
• Excellent troubleshooting skills and a proactive mindset