Principal Systems Engineer

General information Legal company Framatome is an international leader in nuclear energy recognized for its innovative, digital and value added solutions for the global nuclear fleet. With worldwide expertise and a proven track record for reliability and performance, the company designs, services and installs components, fuel, and instrumentation and control systems for nuclear power plants. Its more than 20 000 employees work every day to help Framatome's customers supply ever cleaner, safer and more economical low-carbon energy.

Visit us at , and follow us on Twitter: @Framatome_ and Linked In:
Framatome.

Framatome is owned by the EDF Group (80.5%) and Mitsubishi Heavy Industries (MHI – 19.5%).
Reference number    Publication date 8/21/2025 Job details

Category TA - DESIGN & ENGINEERING - TAA - Design , engineering management & Systems engineering

Job Opening Title Principal Systems Engineer Job type

Non fixed termBU description

Framatome is a major international player in the nuclear energy market recognised for its innovative solutions and value-added technologies for designing, building, maintaining, and advancing the global nuclear fleet. The company designs, manufactures, and installs components, fuel and instrumentation and control systems for nuclear power plants and offers a full range of reactor services.

With 20,000 employees worldwide, every day Framatome's expertise helps its customers improve the safety and performance of their nuclear plants and achieve their economic and societal goals.

Framatome is owned by the EDF Group (80.5%) and Mitsubishi Heavy Industries (MHI – 19.5%)In the UK we are currently over 400 strong, and we have plans for continued growth over the coming years. Our target is to grow to 500 during 2025 through the development our UK nuclear service offerings.

The delivery of effective external and internal marketing and communications will be essential to achieving these goals.

Job description

We are looking for a detail-oriented Principal Systems Engineer to design, develop, and implement state-of-the-art systems for the Nuclear Defence and Space Industry. Responsibilities include understanding military and European/UK Space Agency requirements, defining system specifications, and developing system architectures. The ideal candidate will be familiar with the lifecycle of defence/space system development, from initial concept development to testing, deployment, and system maintenance.

The role will require to produce high-quality, innovative, and effective engineering solutions that meet all design requirements and standards. This role typically requires a strong understanding of engineering principles, ideally within a nuclear environment, coupled with the ability to apply this knowledge to the specific needs of defense-related projects.

Duties and responsibilities include:

Designing and developing defence and space system architecture including developing requirements using a systems engineering approach

Act as the Engineering Manager across the full delivery lifecycle (ie requirements to operational handover) over complex nuclear/space projects.

Ability to manage engineering solutions with values ranging from 0.5M to 200M+ client based CAPEXConducting system-level analysis to ensure that defense systems meet performance, reliability, and safety standards

Testing and evaluating defence and/or system functionality under various operational conditions

Identifying and resolving system defects, vulnerabilities, and inefficiencies

Collaborating with other engineers, technicians and clients to integrate and optimise system components

Providing technical documentation for system designs, test results, and operational procedures

Staying current with advancements in defence and space technology and engineering practices including UK and international engineering standards

Ensuring that nuclear defence and space systems comply with all relevant governmental and in country regulations

Conducting training sessions for system users and operators, as needed

Supporting the procurement of materials and components required for system development and maintenance

Manage system requirements and…