HVAC Engineer - Nuclear

Job Description

As an HVAC Engineer you will join the Derby/Warrington/Manchester team to support activities within the Nuclear Sector. You will support the technical delivery of HVAC system design solutions that provide tempered and conditioned air to Reactor Island facilities, alongside systems that safely extract and treat contaminated air prior to atmospheric discharge. You will contribute across concept and detailed design phases to ensure ventilation and cooling solutions meet nuclear safety, performance, and legislative requirements.

Key aspects of the role include:

• Location: Derby/ Warrington/ Manchester
• On Site: 2 days in one of the sites
• Clearance: BPSS
• Experience Level: 3‑10 YOE

• Support delivery of HVAC system design solutions for nuclear facilities.
• Produce and check technical deliverables for nuclear ventilation and air conditioning systems.
• Develop systems providing particulate abatement prior to discharge to atmosphere.
• Design air conditioning and cooling systems for temperature‑controlled environments.
• Collaborate with cross‑disciplinary teams to ensure system integration and performance.
• Produce HVAC design deliverables through Concept and Detailed Design phases.
• Generate technical reports, calculations, and drawings supporting system design.
• Act as an HVAC subject‑matter expert during supplier and stakeholder engagement.
• Present design maturity and technical solutions at design reviews.

• Knowledge of systems engineering principles applied to HVAC systems.
• Experience developing HVAC designs from concept through detailed definition.
• Ability to perform trade‑off studies to achieve optimal design solutions.
• Experience writing and checking HVAC technical documentation.
• Strong collaboration skills across multi‑disciplinary engineering teams.
• Ability to plan work, manage time, and escalated technical risks appropriately.

• A Bachelor’s or Master’s degree in Engineering, or equivalent military experience.

• Experience in nuclear or other safety‑critical industries.
• Familiarity with verification and validation techniques.
• Experience working within regulated engineering environments.

• A personalised career path and a rewarding management style.
• A huge diversity of engineering projects and industries.
• Private Medical Insurance.
• Cycle & Tech Scheme.
• Employee assistance programme.
• Life insurance & Pension Scheme.
• Social atmosphere, regular gatherings & team buildings.
• Flexible way of working (role dependent).

We are proud to support the Armed Forces Covenant & actively encourage applications from members of the Armed Forces community, including veterans, reservists, service leavers, and military spouses/partners. We recognise the value of military skills and experience and are committed to ensuring that no applicant is unfairly disadvantaged during our recruitment and selection processes.

ALTEN is committed to fostering a diverse and inclusive workplace and values the strength that comes from a global mix of backgrounds and perspectives. We welcome applications from all suitably qualified candidates, regardless of background or protected characteristics under the Equality Act 2010. If you require any reasonable adjustments during the recruitment process, please let us know.

This role may require you to have or be willing to go through Security Clearance. As part of the onboarding process candidates will be asked to complete a Baseline Personnel Security Standard; details of the evidence required to apply may be found on the government website  If you are unable to meet this and any associated criteria, then your employment may be delayed or rejected.

Details of this will be discussed with you at interview.