Field Service Engineer Hertfordshire £45,000 – £55,000 company vehicle bonus overtime benefits Aspion Search is partnering with a specialist engineering group delivering high-spec projects across hospitals, laboratories and cleanroom environments. They are seeking a Field Service Engineer to validate and test critical ventilation and cleanroom systems to HTM 03-01, ISO 14644 and GMP standards. The Business: A respected and expanding provider of commissioning, validation, and compliance services across the UK, supporting the NHS, pharmaceutical, and manufacturing sectors. Offers structured training, clear career progression, and ongoing professional development. A forward-thinking, collaborative team where your work directly impacts patient safety, product quality, and clean air compliance. The Role of the Field Service Engineer: Field-based UK role (travel and accommodation fully supported) using state-of-the-art, calibrated equipment to validate critical ventilation systems. HEPA/ULPA filter integrity testing (DOP/PAO testing) Airflow measurement for supply and extract systems Calculation of air change rates Velocity measurements within isolators and laminar airflow (LAF) cabinets Monitoring and recording of pressure differentials Airborne particle counting and analysis Airborne microbial contamination monitoring Surface sampling for microbial contamination Carries out validation of: Operating theatres Microbiological safety cabinets (Class I–III) Cleanroom environments Including: • Particle counting • Smoke visualisation • HEPA filter testing & installation • Microbial air and surface sampling • Pressure differential measurements About the Field Service Engineer: Engineering or science qualification. Over 2 year’s experience in cleanroom/HVAC validation within hospital, laboratory or pharmaceutical settings. Strong understanding of supply & extract ventilation balancing. Working knowledge of GMP, HTM 03-01 and P601. Flexible to travel UK-wide with regular overnights. Full UK driving licence. Benefits of the Field Service Engineer: Working Away Bonus: £35 per night (paid annually in December). Company vehicle (fully expensed) fuel card. Mobile phone & laptop provided. Optional company pension. 25 days’ holiday bank holidays. Company card for all work-related travel/expenses. Fully funded training and certifications. Private healthcare. Door-to-door pay (travel hours paid at single rate). Overtime: time-and-a-half (Mon–Fri outside 08:00–17:00), double time on weekends. 6-month probation; sick pay: 10 days at full pay. If you thrive in regulated, high-spec environments and meet the criteria, I’d love to speak. Find out more about our available opportunities or how I can help you further your career – contact me today. Please contact Adele Lewis or click Apply Now. Call: (phone number removed) or (phone number removed) Email