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Senior HVAC Engineer

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ASSYSTEM

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Location:
United Kingdom , Warrington

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Category:
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Contract Type:
Not provided

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Salary:

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Job Description:

Join Our Mission to Accelerate the Global Energy Transition. At Assystem, we’re on a mission to drive the global energy transition and help create a sustainable, low-carbon future for all. With over 55 years of experience in highly regulated sectors and a global team of 8,000 passionate professionals, we are making a real impact on the world’s energy landscape. Our team is growing, and we’re looking for a Senior HVAC Engineer to be a key player in our innovative, collaborative projects that are shaping the energy future.

Job Responsibility:

  • Support HVAC Projects: Contribute to designing new HVAC systems or upgrading existing ones, ensuring efficiency and safety
  • Collaborative Design: Work alongside a small, close-knit team of engineers to hit key project milestones and goals
  • Manage Multiple Projects: Balance various projects at once, prioritizing tasks and ensuring timely delivery
  • Documentation Excellence: Develop essential multi-discipline design documents such as Project Requirement Documents, Basis of Design, and Quality Plans
  • Independent Planning: Take ownership of planning and executing HVAC projects with minimal supervision
  • Deliverables Creation: Produce essential HVAC deliverables, from technical reports to engineering drawings and building services calculations
  • Review & Check: Verify the design and deliverables of other senior mechanical designers to ensure quality and accuracy
  • Estimation & Scheduling: Provide estimates for scope changes and additional works, while managing project timelines
  • Design Reviews: Support design review processes to ensure the highest standards are maintained
  • Compliance Documentation: Create detailed reports and documentation to ensure compliance with CDM requirements
  • Cross-Functional Collaboration: Work with integrated design teams, systems engineers, and other project functions to achieve seamless project delivery

Requirements:

  • Degree in Mechanical or Building Services Engineering with proven HVAC design experience
  • Ideally chartered or working towards chartership
  • Strong understanding of UK regulations
  • Knowledge of nuclear standards and site procedures is a plus
  • Ability to prioritize effectively and meet deadlines while managing multiple tasks
  • Proficiency in Microsoft Office Suite (Excel, Word, Visio, PowerPoint, Outlook, etc.)
  • Self-driven with a passion for owning your work and delivering results
  • Excellent communication skills and the ability to work collaboratively with diverse teams
  • Strong writing skills to clearly document project findings and recommendations
  • Comfortable working under pressure to meet deadlines and budget constraints
  • Applicants will need to meet residency criteria for UK security clearance

Nice to have:

Knowledge of nuclear standards and site procedures

What we offer:
  • Diversity & Inclusion
  • Equal treatment of candidates
  • Foster all forms of diversity

Additional Information:

Job Posted:
January 11, 2026

Employment Type:
Fulltime
Work Type:
On-site work
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