Senior HVAC Site Engineer
As a Senior HVAC Site Engineer, you will play a pivotal role in the construction phase of a landmark energy project. Your team will rely on your leadership to ensure HVAC systems are delivered to the highest safety and quality standards, from planning through to installation and commissioning readiness.
1. Lead the delivery of HVAC construction work packages across assigned project areas.
2. Coordinate with contractors, supervisors, and client representatives to resolve site queries.
3. Oversee installation activities to ensure compliance with design and safety requirements.
4. Ensure construction documentation is accurate, complete, and submitted on time.
5. Drive planning of safe access and support surveying requirements on-site.
6. Monitor progress, identify risks, and escalate issues to maintain delivery schedules.
7. Promote and embed a positive health, safety, and environmental culture on-site.
8. Support the implementation of permitting and authorization systems for construction activities.
Qualifications and Experience
* Degree or trade qualification in HVAC or Mechanical Engineering.
* Professional accreditation in construction, project management, or engineering.
* CCNSG Safety Passport and IOSH or NEBOSH qualification.
* Proven track record in HVAC installation and construction delivery on large projects.
* Ability to lead and coordinate multidisciplinary site teams.
* Strong understanding of construction documentation and site processes.
* Knowledge of regulatory compliance within safety-critical industries.
* Experience driving safe and efficient project delivery in complex environments.
Desired Skills
* Experience delivering HVAC systems on major energy, industrial, or infrastructure projects.
* Knowledge of UK nuclear or other highly regulated project environments.
* Familiarity with digital permitting and document control systems.
* Surveying or access planning experience in a construction setting.
* Strong problem-solving skills with adaptability in dynamic site environments.
About Assystem
Assystem is a global leader in engineering, dedicated to accelerating the energy transition. In the UK, we're powering progress on landmark projects like Hinkley Point C, Sizewell C, and next-generation Small Modular Reactors (SMRs). Our 7,500+ Switchers blend deep engineering know-how with cutting-edge digital tools to help build a low-carbon world—faster, cleaner, and smarter.
Why Join the Community of Switchers? Becoming a Switcher means joining one of the top three nuclear engineering companies in the world. You'll work on technically complex projects that shape the UK's energy future while gaining opportunities to grow your expertise in a fast-paced, collaborative environment.
Benefits
* Hybrid Working Opportunity
* Flexible working hours
* Pension scheme (8% company contribution / 4% personal contribution)
* 25 days' paid annual leave + bank holidays + option to buy or sell days
* Professional fees reimbursed
* Employee referral scheme
* Competitive Sick Pay - Support when you need it
* Income Protection & 3x Salary Death-in-Service Cover
* Free Digital Gym Access - Expert-led fitness classes
* 24/7 Employee Support Line - Mental health, financial & legal help
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