HVAC Design Engineer - Nuclear

• Compensation: GBP 40,000 - GBP 60,000 - yearly

ALTEN is a global engineering and technology consultancy operating across over 35 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, IT and many more to deliver innovative engineering solutions that drive technological advancement & support sustainable transformation.

Our teams of passionate and agile engineers work on cutting-edge projects that shape the future of technology and sustainability. At ALTEN, we empower talented engineers to innovate, solve complex challenges, and deliver impactful solutions that build tomorrow’s world—today.

Join us and start building tomorrow’s world today!

As a HVAC Engineer , you will join Bristol
team to support our activities within the Nuclear Sectorsector.

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, ensuring that ventilation and cooling solutions meet nuclear safety, performance, and legislative requirements.

You will work closely with system leads and multi-disciplinary engineering teams to deliver integrated HVAC and chilled water solutions for safety-critical nuclear environments.

• Location:
  Bristol
• Clearance: BPSS
• Experience Level: 3- 10 YOE

Key Responsibilities:

• 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

Required Skills:

• 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 elevate technical risks appropriately

Required Qualifications:

• 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