Senior Facilities Engineer in Antrim

Oxford Ionics, now part of IonQ, is pioneering the next generation of quantum computing. Using our world-leading trapped-ion technology, we are building the most powerful, accurate and reliable quantum systems to tackle problems that today’s supercomputers cannot solve.

We are seeking a Senior Facilities Engineer to support the safe, compliant, and reliable operation of critical facilities infrastructure across laboratory, cleanroom, and technical manufacturing environments. This is a hands-on, front-line role responsible for executing day-to-day facilities operations, owning routine compliance tasks, and maintaining control of site activities. The role is expected to take direct ownership of facilities issues, ensuring they are managed through to resolution.

The position works closely with the Head of Facilities and is critical in ensuring that compliance, contractor control, and system reliability do not rely on a single point of failure.

Responsibilities include:

• Carrying out planned preventative and reactive maintenance across HVAC, mechanical, electrical, and plumbing systems to support the reliable operation of critical utilities.
• Acting as a first responder to facilities faults and system issues, taking ownership through to resolution by performing fault finding, diagnostics, and escalation where required.
• Completion of routine compliance activities while ensuring effective system performance, reliability, and safety across site operations.
• Conducting fire alarm and life safety testing, Legionella control checks (L8), safety inspections, and basic statutory checks.
• Maintaining accurate, audit-ready records and supporting audits.
• Managing and controlling contractor activities on site, ensuring RAMS are reviewed, understood, and followed correctly.
• Supporting facilities operations across laboratory, ISO cleanroom, and technical manufacturing environments.
• Assisting with the installation, relocation, and setup of equipment and infrastructure.
• Raising, tracking, and closing work orders using the CMMS system while maintaining accurate asset registers and maintenance records.
• Responding to facilities incidents such as power loss, leaks, and system failures.
• Carrying out minor repairs and general fabric maintenance across the site.
• Maintaining stock levels of critical spares and consumables.
• Supporting flexible day-to-day facilities and site operations to ensure continuity and efficiency.

Requirements:

To be successful in this role, you will need an NVQ Level 3, City & Guilds qualification, HNC, or equivalent in Mechanical, Electrical, or Building Services, alongside 3-5 years of experience within high-tech, laboratory, cleanroom, semiconductor, manufacturing, or similarly regulated environments. We are looking for someone with a strong working knowledge of MEP systems and building services, experience using CMMS systems, and a solid understanding of UK compliance frameworks, including L8, fire safety, and health & safety regulations.

You would be a great fit with:

• Experience supporting cleanroom (ISO 58) environments.
• Experience with PCW / CHW systems or critical cooling infrastructure.
• Familiarity with BMS platforms (e.g. Trend, Tridium Niagara).
• IOSH qualification or equivalent.
• Experience working in audit-driven environments (GLP / GMP).

Benefits:

We offer a range of benefits, including opportunities to further your career alongside industry leaders, a competitive salary with IonQ stock options, an annual performance bonus, generous annual leave, flexible hybrid working, private medical and dental insurance for you and your family, and much more.

Join us and be part of the future of quantum computing. We’re proud to be an equal opportunity employer and welcome applicants from all backgrounds.