Mechanical Engineer - Construction

Assystem, Switch On; Dunball; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading engineering firm is seeking a Mechanical Construction Oversight professional for a full-time role at Hinkley Point C in the UK. This position involves monitoring compliance in mechanical construction, reporting non-conformances, and ensuring quality performance on-site. Candidates must have a mechanical engineering qualification and experience in relevant activities. The role offers various benefits including flexible working hours, a pension scheme, and paid annual leave.

Benefits

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

Responsibilities

• Monitor mechanical construction works ensuring compliance with approved documentation.
• Identify non-conformances and escape deviations through formal reporting channels.
• Contribute mechanical surveillance findings to quality teams supporting resolution.
• Support mitigation actions to maintain construction safety and quality performance.
• Ensure technical decisions follow correct approvals instead of informal site changes.
• Coordinate with contractors and site teams to maintain clear communication pathways.
• Assist performance reviews against Quality Control Plans and project KPIs.
• Ensure inspections and records are completed before mechanical works are covered.

Skills

Mechanical engineering qualification or equivalent vocational pathway

Experience in mechanical installation, surveillance or construction QA activities

Knowledge of mechanical scopes such as pipework, HVAC or equipment installation

Skilled in reporting using Outlook, Excel, SharePoint and Teams

Understanding of mechanical construction standards and inspection requirements

Experience supporting documentation used in QA and site assurance processes

Comfortable spending the majority of time on active construction work fronts

Education

Mechanical engineering qualification

Job description

️💡 About Assystem

Assystem is a global leader in engineering, digital, and project management services, driving the UK’s energy transition since 1996. With our near 8,000 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.

Please note – we’re unable to offer visa sponsorship for this role, so applicants must have full right to work in the UK.

The Job Mission :

This is a full time on site role at Hinkley Point C. Applicants must live within commuting distance or be willing to relocate with available support. You will join your future team providing mechanical construction oversight across key nuclear systems. The focus is verifying compliance, monitoring works on site and supporting quality assurance activities.

Responsibilities :

• 🔧 Monitor mechanical construction works ensuring compliance with approved documentation
• 📄 Identify non conformances and escape deviations through formal reporting channels
• 📋 Contribute mechanical surveillance findings to quality teams supporting resolution
• 🏗️ Support mitigation actions to maintain construction safety and quality performance
• 📐 Ensure technical decisions follow correct approvals instead of informal site changes
• 🤝 Coordinate with contractors and site teams to maintain clear communication pathways
• 📅 Assist performance reviews against Quality Control Plans and project KPIs
• 🛠️ Ensure inspections and records are completed before mechanical works are covered

Required Skills and Qualifications :

• 🎓 Mechanical engineering qualification or equivalent vocational pathway
• 🏗️ Experience in mechanical installation, surveillance or construction QA activities
• 📐 Knowledge of mechanical scopes such as pipework, HVAC or equipment installation
• 📊 Skilled in reporting using Outlook, Excel, SharePoint and Teams
• ⚙️ Understanding of mechanical construction standards and inspection requirements
• 🧰 Experience supporting documentation used in QA and site assurance processes
• 🚧 Comfortable spending the majority of time on active construction work fronts

⚠️ Please note :

Due to project security requirements, unfortunately, visa sponsorship is not available for this position.

Benefits include :

• 🕒 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

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.