Mechanical Design Engineer - Chillers

Company Description

⚡️💡 About Assystem
Assystem is a global leader in engineering, digital, and project management services, driving the UK’s energy transition since 1996. With 7,500 Switchers worldwide, we combine deep engineering expertise with digital innovation to deliver complex, low-carbon infrastructure. In the UK, we’re proud to support landmark nuclear projects like Hinkley Point C, Sizewell C, and emerging SMR programmes.

🤝 Why Join the Community of Switchers?
Join one of the three largest nuclear engineering companies in the world. Here, you'll work on world‑class energy‑transition missions, collaborating with top teams delivering Hinkley Point C, Sizewell C and SMRs. Become part of an elite global community, driving innovation and excellence every day.

Job Description

• 🚀 The Job Mission
• This hybrid role requires you to live within a practical commute of Bristol; modest relocation support is available.
• You’ll serve as Technical Lead for the chiller contract, overseeing quality and contract compliance.
• Your future team depends on your cross-discipline coordination to keep delivery on schedule.
• You’ll interface with suppliers and internal stakeholders, resolving issues and controlling change rigorously.

Key Responsibilities:

• Support the Contract Engineering Lead across chiller scope, technical decisions, and contractual clarifications.
• Coordinate and review supplier documentation, compile stakeholder comments, ensure quality within agreed deadlines.
• Create structured comment sheets in approved tools; track responses and close actions efficiently.
• Manage open points and modifications using formal change management and configuration control systems.
• Prepare Contract Technical Specification (CTS) variations to notify supplier and client through governance workflows.
• Resolve technical issues, nonconformities, and design changes raised by site and design teams.
• Coordinate interfaces with systems, electrical, piping, layout and instrumentation and control disciplines.
• Align qualification activities with the France-based team; support evidence gathering and acceptance criteria.
• Write surveillance plans and reports; communicate progress, risks, and mitigations to leadership.

Qualifications

🛠 Essential skills and qualifications

• Bachelor’s or Master’s degree in Engineering.
• Proven understanding of chiller interfaces: systems, piping, layout, thermal performance.
• Hands-on contract management and documentary surveillance experience.
• Competent with change, commercial and deliverable management tools.
• Experience coordinating multi-discipline technical interfaces on large projects.
• Ability to prepare and control Contract Technical Specification variations.
• Familiar with configuration control and formal change processes.
• Experience producing surveillance plans and factual progress reports.

✔️ Desired Skills

• Exposure to qualification activities and acceptance evidence for safety-related equipment.
• Experience resolving site nonconformities and design changes within governance.
• Working knowledge of instrumentation and control systems interface requirements.

Additional Information

🌟 Ready to shape the future? Join your future team on-site at one of the most ambitious nuclear power projects in Europe. Be part of a collaborative mission to uphold the highest construction and quality standards.

• Benefits include:
• 🏡 Hybrid Working Opportunity
• 🕒 Flexible working hours
• 🛡️ Pension scheme (8% company / 4% personal)
• 🏖️ 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 & 3× Salary Death-in-Service Cover
• 💪 Free Digital Gym Access – Expert-led fitness classes
• 📞 24/7 Employee Support Line – Mental health, financial & legal help

Ref - Epr-E

We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.