IT Infrastructure & Security Specialist

We are looking for a proactive and technically skilled IT Infrastructure & Security Specialist to join our growing IT team. This is an exciting opportunity for an experienced infrastructure professional who is passionate about systems administration, cybersecurity, enjoys solving complex technical challenges, and thrives in a project-driven environment.

Reporting directly to the CTO, you will play a key role in maintaining and enhancing our core IT infrastructure, leading security initiatives, and delivering infrastructure and cybersecurity projects from conception through to completion. You will also serve as a technical escalation point for complex issues and provide mentorship to other members of the IT team.

What You'll Be Doing

• Administer, maintain, and optimise our IT infrastructure, including servers, storage, networking, firewalls, and cloud services.
• Monitor system performance, capacity, and availability to ensure high levels of reliability and uptime.
• Implement infrastructure hardening standards, security controls, and industry best practices.
• Coordinate maintenance activities, system updates, and patch management across critical systems.
• Manage and improve security controls covering endpoint protection, identity and access management, email security, backup, disaster recovery, and business continuity.
• Monitor security events and coordinate the investigation and remediation of incidents.
• Lead and deliver infrastructure and cybersecurity projects while ensuring appropriate documentation and change management processes are followed.
• Work closely with internal stakeholders and external vendors to design and implement technical solutions that support business objectives.
• Provide technical support for complex infrastructure-related issues.
• Develop technical documentation, standards, runbooks, and automation initiatives to improve operational efficiency.
• Mentor junior team members and contribute to fostering a culture of continuous improvement and technical excellence.

What We're Looking For

Experience

• 3+ years of hands-on experience in IT infrastructure roles such as Systems Administrator, Network Administrator, or IT Administrator.
• Practical experience implementing and managing security controls within production environments.
• Demonstrated experience delivering infrastructure-related projects from planning through implementation.

Technical Skills

You should have strong experience with several of the following technologies:

• Windows Server and/or Linux administration.
• Active Directory, Azure AD, and identity management solutions.
• Microsoft 365 and cloud productivity platforms.
• Virtualisation technologies such as VMware, Hyper-V, or Proxmox.
• Network infrastructure including switches, routers, firewalls, VLANs, and VPNs.
• Backup, disaster recovery, and monitoring solutions.
• Networking fundamentals including TCP/IP, DNS, DHCP, routing, and VPN technologies.
• Security concepts including least privilege, defence in depth, and Zero Trust principles.

Certifications (Advantageous)

Relevant industry certifications are highly regarded, including:

• CompTIA Network+
• CompTIA Security+
• Microsoft Certifications
• Cisco Certifications
• Other recognised infrastructure or cybersecurity certifications

Who You Are

• A proactive problem solver who takes ownership and delivers results.
• Comfortable working independently while collaborating effectively within a team.
• Highly organised, with excellent attention to detail and a strong focus on quality and security.
• An excellent communicator who can translate technical concepts into clear business language.
• Passionate about continuous learning and keeping up with emerging technologies and cybersecurity trends.
• Someone who enjoys mentoring others and contributing to a positive and collaborative team environment.

Why Join Us?

You'll have the opportunity to work on meaningful infrastructure and cybersecurity initiatives while helping shape and improve the organisation's technology landscape. This role offers significant exposure to enterprise technologies, project leadership opportunities, and the chance to make a tangible impact across the business.

If you're passionate about infrastructure, security, and delivering technology solutions that make a difference, we'd love to hear from you.