Systems Engineer

Assystem is a global leader committed to accelerating the energy transition. With 7,500 employees across 12 countries, we tackle the monumental task of switching to low‑carbon energy. Our 55+ years of experience in highly regulated sectors ensure we deliver top‑notch engineering, project management, and digital solutions.

Join the Fusion and Modular Nuclear Business Unit!

Assystem has an exciting opportunity for Systems and Senior Systems Engineers to join our expanding Fusion and Modular Nuclear (FMN) business unit. As leaders in the design and development of new technologies, you will work across multiple cutting‑edge projects developing Nuclear Fusion technologies that make net‑zero power generation a reality.

Responsibilities

• ️ Create or coordinate the creation of artefacts such as the operations concept, functional and system architectures, requirement and compliance statements, verification and validation planning, optioneering assessments, design risk assessments (safety and CDM).
• Support integrated technical management (technical and project risks and issues, technical assumptions, design configuration, breakdown structure development).
• ❓ Respond to technical queries as required.
• Liaise with all disciplines to ensure coordination of the design.
• Apply systems engineering best practices and approaches to grow the systems engineering capability within the engineering team.
• Develop and propose an MBSE approach.
• Report to Project Lead Engineer (Systems and Integration) with deliverable progress updates and resource level recommendations.

Why Join?

• Over 55 years in nuclear engineering.
• Ranked among the top 3 largest nuclear engineering companies.
• Attractive social benefits, including an engaging Employee Committee and holiday bonuses.
• Ongoing training with numerous career opportunities.
• 70% of our managers are promoted internally!
• Hybrid work: 1‑2 days remote per week.

Qualifications & Experience

• Degree qualified or equivalent in Systems Engineering or other technical fields.
• Background in nuclear fusion, nuclear sector, or regulated industries like thermal power generation, oil and gas.
• Whole life‑cycle experience is essential.
• Extensive subject‑specific knowledge of power plant design, UK codes, standards, regulations, and operational requirements.
• ⚖️ Working experience of Health and Safety, Quality Assurance standards, CDM regulations, and NBS.
• ️ Systems engineering experience through the full project life cycle from initial proposal through requirements development, design, testing, qualification, certification, and production release phases.
• Proven ability to coordinate a highly skilled technical workforce to produce products that meet quality, safety, and performance requirements.
• ️ Excellent oral and written communication skills.
• Understanding of Model‑Based Systems Engineering (MBSE).
• Ability to work with a multi‑national team and to attain and maintain the respect and confidence of all stakeholders.

Additional Information

• ️ Security: BPSS and SC required.
• ✈️ Travel Ready: Ability to travel to Assystem offices and customer sites within the UK.
• Global Impact: Support major UK and international nuclear clients with key work packages.

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.

Job Details

• Seniority level: Entry level
• Employment type: Full‑time
• Job function: Business Consulting and Services