Salary: Competitive + allowances
Working Hours: Monday – Friday 07:45 – 16:30 (16:15 on Friday), 9‑day fortnight, every 2nd Friday off.
Benefits: 25 days holiday + bank holidays, health cash plan, discount shopping, gym, days out, learning & development opportunities, paid volunteering days, referral scheme, extensive learning & development, bike‑to‑work scheme, dental scheme, employee assistance programme.
Location: Aldermaston, UK
EMCOR UK, part of OCS, delivers facilities management for the Defence sector by combining its engineering heritage with advanced innovation to support mission‑critical environments. We put people at the heart of everything we do and closely work with Defence customers to understand their needs, from strategic estate priorities to the safe, reliable delivery of day‑to‑day services across secure sites.
Job Purpose
Lead UPS Engineer – responsible for supporting and managing critical battery backup systems, ensuring on‑time delivery of all tasks, maximizing efficiency, and minimizing disruption to the facility while meeting service level requirements and maintaining a high level of site availability.
About The Role
- Ensure technical staff are sufficiently trained and experienced for all tasks.
- Carry out site visits for service and maintenance (PPM), fault diagnosis, testing, and repairs on all types, makes and manufacturers of UPS, batteries, switchgear, control systems, and associated critical electrical equipment.
- Document and support corrective actions identified.
- Support and facilitate specialist subcontractors/vendors during planned, reactive or project tasks, ensuring compliance with site procedures and safety documentation.
- Issue work instructions and documentation required to complete tasks in accordance with the 12‑week plan.
- Review 3rd‑party RAMS with basic sanity checks.
- Carry out battery impedance testing, battery replacements and installations.
- Ensure all contract documentation is processed, issued, receipted and distributed to appropriate stakeholders, records kept in accordance with contract requirements and contractor processes (via PLOW, monthly, quarterly and annual reporting).
- Provide first‑line response, diagnosis and resolution for critical equipment.
- Conduct investigations and inspections of UPS, batteries, switchgear, control systems and associated electrical assets.
- Carry out installation and commissioning of UPS and battery systems and assist on installations for a wide variety of critical power equipment.
Qualifications
- Proven experience in battery backup systems.
- Technical qualification in a relevant discipline.
- Strong DC electrical knowledge and experience.
- Ability to organise and manage own workload.
- Positive, proactive attitude with ownership of the site.
- Awareness of critical environments and understanding of risk factors to site and operations.
- Good knowledge of LV switchgear, generators, cooling systems and UPS systems.
- Valid UK driving licence.
- Strong administrative skills with Microsoft Office.
Benefits
- Industry‑leading maternity & paternity policies.
- Referral scheme – worth £500 per referral.
- Internal recognition scheme (GEMS) with vouchers.
- Extensive learning & development opportunities, including progression opportunities.
- Discount shopping, gym, mobile, family activities, insurance, dining experiences, car leasing and breakdown cover.
- Bike‑to‑work scheme.
- Health cash plan covering optical, physiotherapy and other health & wellbeing services.
- Dental scheme.
- Access to health assessments.
- Employee Assistance Programme – guidance and advice on personal, health, legal and financial queries.
We welcome applicants from all backgrounds and experiences, including differences in age, race, gender, sexual orientation, religion, disability or any other characteristic that makes you unique. We believe in diversity and inclusion, and we encourage applicants from all candidates in an equal‑opportunity environment.
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