Oxford Instruments Plc
Infrastructure & Network Engineer
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Infrastructure & Network Engineer
At Oxford Instruments, we enable the world’s leading industrial companies and scientific research communities to image, analyse and manipulate materials down to the atomic and molecular level. With a sixty-year history, and fourteen Queen’s Awards for Enterprise, our world-class products and technologies are helping our customers to address the greatest challenges of the 21st century.
We’re looking for an Infrastructure & Network Engineer to help ensure the reliability, security, and performance of our core IT estate. This is a great opportunity to work across on‑premise and cloud environments, supporting critical platforms that underpin our business and enabling innovation across multiple sites. Reporting to the Senior Network Architect, you’ll work closely with IT Operations, Information Security, Enterprise Applications, and third‑party partners to deliver resilient, secure, and well‑run infrastructure services.
What you’ll be doing
Supporting and maintaining enterprise network infrastructure, including switching, routing, wireless, and WAN technologies Assisting with firewall configuration and network security controls Administering and supporting Microsoft 365 services (Exchange Online, Teams, SharePoint, Intune) and Azure AD Supporting server environments including Windows Server, virtualisation platforms, storage, and backup solutions Troubleshooting and resolving escalated infrastructure and network issues Contributing to infrastructure and security improvements across multiple sites Supporting patching, monitoring, incident response, and business continuity activities Assisting with disaster recovery planning and testing Maintaining accurate system documentation, network diagrams, and procedures Monitoring performance and capacity to help improve reliability and resilience
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What we’re looking for You don’t need to tick every box, but you should be able to demonstrate strong experience in at least five of the areas below:
Enterprise LAN/WAN networking (routing, switching, VLANs, Wi‑Fi) Firewall administration and network security Microsoft 365 and Azure AD identity management Windows Server, Linux, virtualisation (VMware / Hyper‑V), and storage Client operating systems (Windows, macOS, Linux) Troubleshooting complex infrastructure and network issues Applying security best practice (patching, hardening, identity) Strong documentation and stakeholder communication skills Experience delivering infrastructure or security solutions across multiple locations Ability to work both independently and collaboratively
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Qualifications (desirable)
Industry certifications such as Microsoft, Cisco (CCNA/CCNP), or CompTIA (Network+, Server+, Security+) Degree in IT, Computer Science, or a related discipline
Why join us? You’ll be part of a team that values continuous improvement, collaboration, and doing things the right way. We offer the chance to work on meaningful infrastructure and security initiatives in a supportive environment where your ideas and expertise will genuinely make an impact.
Ready to apply?If you’re passionate about building secure, resilient infrastructure and want to grow your skills in a modern hybrid environment, we’d love to hear from you.
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All qualified applicants will receive consideration for employment without regard to race, colour, religion, sex, sexual orientation, gender identity, national origin, or disability.
Note to recruitment agencies: Oxford Instruments operates a Preferred Supplier List, and we do not accept unsolicited agency CVs. Please do not forward candidate details in response to this advert, or to any Oxford Instruments employees or other company locations. Oxford Instruments is not responsible for any fees related to unsolicited CVs.
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