HVAC Pre-Construction Engineer

Assystem UK Ltd; Bridgwater; Hybrid; GBP 40,000 - 60,000; Full time

Job summary

A leading global engineering firm is seeking an Engineer for Bridgwater. You will prepare HVAC construction work packs and ensure project compliance while providing technical leadership. Ideal candidates have a mechanical degree or substantial HVAC experience, along with strong problem-solving and organizational skills. The position includes flexible working arrangements and numerous benefits, including a pension scheme and professional development support.

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

Income Protection & 3x Salary Death-in-Service Cover

Free Digital Gym Access

24/7 Employee Support Line

Qualifications

• Proven track record operating at Engineer or Senior Engineer level.
• Ability to manage configuration documentation effectively.

Responsibilities

• Prepare and deliver HVAC construction work packs, ensuring clarity and compliance with standards.
• Define and manage boundaries of scope for allocated works and documentation.
• Liaise with subject matter experts, contractors, and client counterparts to resolve queries.
• Drive coordination across mechanical, electrical, and civil interfaces for seamless delivery.

Skills

Mechanical degree or significant HVAC systems experience

Experience on major construction projects in highly regulated sectors

Strong organisation and problem-solving skills

Proficiency in Navisworks

Strong Excel capability

Education

Mechanical degree

Tools

Navisworks

Excel

Job description

Overview

This role is a mix of site and office-based work in Bridgwater, and relocation support is available if required. You'll be central to preparing and delivering HVAC construction work packs, enabling installation activities to progress safely and on schedule. Your future team will rely on your technical leadership to keep documentation aligned, interfaces managed, and construction readiness achieved.

Responsibilities

• Prepare and deliver HVAC construction work packs, ensuring clarity and compliance with standards
• Define and manage boundaries of scope for allocated works and documentation
• Liaise with subject matter experts, contractors, and client counterparts to resolve queries
• Review, update, and prioritise documentation to meet project deadlines
• Ensure deliverables achieve >90% first-time acceptance rate through quality reviews
• Contribute to planning and scheduling activities, providing feedback on resources and timelines
• Identify constructability issues and coordinate surveys or temporary works solutions
• Drive coordination across mechanical, electrical, and civil interfaces for seamless delivery
• Support improvement initiatives to streamline processes and enhance project efficiency
• Provide leadership within the pre-construction team and deputise for the Pre-Construction PM where required

Qualifications

• Mechanical degree or significant HVAC systems experience
• Experience on major construction projects in highly regulated sectors
• Proven track record operating at Engineer or Senior Engineer level
• Proficiency in Navisworks and strong Excel capability
• Strong organisation and problem-solving skills
• Ability to manage configuration documentation effectively

Desirable Skills

• Nuclear sector experience
• Familiarity with configuration management systems
• Knowledge of construction scheduling principles
• Experience in coordinating multi-discipline project teams

About Us

Assystem is a global leader in engineering, dedicated to accelerating the energy transition. In the UK, we are 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.

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
• We are committed to equal treatment of candidates and promote diversity; bringing together people with different backgrounds and perspectives is essential for innovative solutions.