Junior Commissioning Process Engineer

-; Bridgwater; Hybrid; GBP 35,000 - 54,000; Full time

Job summary

A global engineering firm in the UK seeks a candidate to support the development of commissioning processes for a major nuclear power project. This role involves creating and optimizing end-to-end procedures for contractor activities, collaborating with internal and external stakeholders to ensure compliance, and utilizing tools like Excel and Visio for process mapping. Candidates should have a degree in engineering or a related STEM subject and possess strong attention to detail, communication, and organizational skills. Hybrid working opportunities and various benefits are offered.

Benefits

Hybrid Working Opportunity

Flexible working hours

Pension scheme

25 days' paid annual leave

Professional fees reimbursed

Employee referral scheme

Competitive Sick Pay

Income Protection

Free Digital Gym Access

24/7 Employee Support Line

Qualifications

• Able to document technical procedures clearly.
• Strong attention to detail needed for process compliance.
• Good communication skills required for collaboration.

Responsibilities

• Create and optimise end-to-end commissioning procedures.
• Develop clear instructions for project stakeholders.
• Collaborate across teams to gather process information.

Skills

Attention to detail

Good communication skills

Organizational skills

Analytical mindset

Education

HNC or degree in engineering or related STEM subject

Tools

MS Excel

Visio

PowerPoint

Job description

Company Description

Assystem is a global leader in engineering services, accelerating the energy transition through complex infrastructure programmes. In the UK, we support landmark nuclear projects including Hinkley Point C, Sizewell C and emerging SMR technologies. Our 7,500 Switchers combine deep engineering expertise with digital innovation to help deliver a net zero future. From design to commissioning, we are embedded in the full project lifecycle.

Why Join the Community of Switchers?

You’ll be joining one of the top three nuclear engineering companies in the world. At Assystem, you’ll be part of a collaborative and diverse team delivering some of the UK’s most significant low‑carbon infrastructure projects. Whether you’re growing technically or expanding into new areas, your development is supported every step of the way.

Job Description

The Job Mission

This role supports the development of commissioning processes for a major nuclear power project. You’ll create and optimise end‑to‑end procedures for contractor commissioning activities. You’ll collaborate with internal and external stakeholders to align process and compliance.

Key Responsibilities

• Help create and update process documents used across the commissioning phase
• Support development of clear procedures and instructions for project stakeholders
• Work with engineering and delivery teams to gather accurate process information
• Use tools like Visio and Excel to map out workflows and dependencies
• Ensure processes follow safety and regulatory expectations
• Assist with reviews and improvements to existing commissioning procedures
• Collaborate with stakeholders to gather feedback and identify improvements
• Support integration of processes across engineering, construction, and commissioning

Qualifications

Essential Skills and Qualifications

• HNC, apprenticeship, or degree in engineering or a related STEM subject
• Basic understanding of PFDs and P&IDs
• Comfortable using tools like MS Excel, Word, Visio, and PowerPoint
• Able to follow and document technical procedures clearly
• Strong attention to detail and good organisational skills
• Analytical mindset with a willingness to learn and improve processes
• Good communication skills and ability to work with different teams
• Eligible for UK security clearance

Desired Skills

• Some experience in nuclear, commissioning, or other regulated sectors
• Awareness of health and safety regulations or quality processes
• Familiarity with document management or procedural frameworks
• Basic understanding of risk assessment or project lifecycle stages
• Interest in continuous improvement and process efficiency

Additional Information

Why Apply?

This is a great opportunity to grow your experience in a high‑impact environment, supporting real‑world engineering delivery at Hinkley Point C. You’ll gain valuable exposure to commissioning, regulatory frameworks, and nuclear project delivery.

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, 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.