JDO Mechanical Calculation Engineer

TA - DESIGN & ENGINEERING - TAD - Mechanical Engineering

JDO Mechanical Calculation Engineer

Non fixed term

At Framatome we are a global leader in nuclear energy, recognised for delivering innovative, value-added technologies that design, build, maintain, and advance the world's nuclear fleet. With 22,000 employees in over 70 locations worldwide, we provide components, fuel, and control systems for nuclear power plants, along with a full suite of reactor services — all focused on improving safety, performance, and sustainability.

Backed by EDF Group (80.5%) and Mitsubishi Heavy Industries (19.5%), we're driving the future of clean energy. Here in the UK, our team is now over 500 strong — and growing. As we expand our service offerings across the UK nuclear industry, we're aiming continuing our growth journey. Now's your chance to join a company that's shaping the energy transition — where your expertise will matter, your growth will be supported, and your work will help power generations to come.

What are we hiring for?

We are seeking a JDO Mechanical Calculation Engineer here to join our team in Hinkley Point C, Bridgwater to support withfield design activities for the piping discipline within the HPC project. The role involves managing interfaces with multiple disciplines and resolving piping engineering issues encountered during on-site installation of pipework and associated supports. The engineer will ensure compliance with nuclear industry standards and project milestones while maintaining EPR-E procedures.

What will you be doing?

Within this position you will be responsible for:

• Data Collection and Analysis:o Gather input data, analyse/update hypothesis notes, and prepare detailed loading description reports for piping systems and supports.
• Mechanical Stress Analyses: o Perform piping flexibility calculations, piping support calculations, and finite element analysis (FEA) to address installation and operational issues using Pipe Stress, RSTAB & ANSYS software’s. o Conduct dynamic analysis of nuclear structures and components under seismic, thermal conditions (pseudo-static/dynamic), including frequency analysis and structural rigidity assessment. o Design and calculate anchorages (Pre/Post Embedded Plates using Verif Platines software or Hand calculations), welds, and bolted connections for piping and equipment supports.
• Design and Modification: o Propose proportionate modifications when sizing criteria are not met.
• Verification and Quality Control
  : o Check steel structures (e.g., base frames, racks), supports for electrical cabinets, batteries, boxes, main cable trays, instrumentation (pressure/temperature/level sensors), and HVAC support systems (for ducts, chillers, condensers, centrifugal fans etc..). o Support and assist Equipment Department to verify calculation notes for various equipment such as Pumps, Valves, Flanges, Heat exchangers, Tanks, and Pressure Vessels.
• Technical Support and Documentation: o Provide technical clarifications to NNB and respond to site requests (RFI, FCR, NCR). o Offer technical support to others disciplines for a wide range of calculations (handling systems…) o Prepare and review technical documentation to support design and installation activities.
• Collaboration: o Collaborate with installation contractors, civil works (CW) interfaces, and other disciplines (e.g., Electrical, HVAC, Equipment etc) to clarify and resolve site queries, ensuring alignment with project requirements.
• Drawing Support: Collaborate with CAD designers to assist for accurate design drawings using 2D and 3D software.

The employee will be highly interacting with the operational lead to provide them with technical assessments. They will be in charge of…