Mechanical Calculation 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 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 LinkedIn: Framatome.

Framatome is owned by the EDF Group (80.5%) and Mitsubishi Heavy Industries (MHI – 19.5%).  

Reference number

Publication date

/21/2025

Category

TA - DESIGN & ENGINEERING - TAB - Mechanical, HVAC & Civil Work coordination and management

Job Opening Title

Mechanical Calculation Engineer (JDO)

Job type

Non fixed term

BU 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.

Job description

EDF EPR Engineering UK (EPR-E) is a subsidiary of Edvance, which is a joint venture between EDF and Framatome, established in 2018 in charge of the design and the realisation of nuclear islands for new projects in France and worldwide.

At HPC we are building two new nuclear reactors, the first in a new generation of nuclear power stations in the UK providing low carbon electricity for around six million homes.

For the SZC Project, work on the replication strategy and some early design studies are already underway and being delivered and managed from both France and UK.

We are looking to recruit for the role of JDO Mechanical Calculation Engineer.

The Mechanical Calculation Engineer position focuses on supporting field 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. The main tasks will be the following:
Data Collection and Analysis:
Gather input data, analyse/update hypothesis notes, and prepare detailed loading description reports for piping systems and supports.
Mechanical Stress Analyses:
Perform piping flexibility calculations, piping support calculations, and finite element analysis (FEA) to address installation and operational issues using PipeStress, RSTAB & ANSYS software's.
Conduct dynamic analysis of nuclear structures and components under seismic, thermal conditions (pseudo-static/dynamic), including frequency analysis and structural rigidity assessment.
Design and calculate anchorages (Pre/Post Embedded Plates using VerifPlatines software or Hand calculations), welds, and bolted connections for piping and equipment supports.
Design and Modification:
Propose proportionate modifications when sizing criteria are not met.
Verification and Quality Control:
Review calculation notes and guide drawings subcontracted to external companies.
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..).
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:
Provide technical clarifications to NNB and respond to site requests (RFI, FCR, NCR).
Offer technical support to others disciplines for a wide range of calculations (handling systems…)
Prepare and review technical documentation to support design and installation activities.
Collaboration:
Collaborate with installation contractors, civil works (CW) interfaces, and other disciplines (e.g., Electrical, HVAC, E

Profile

Essential Qualifications, Experience and Skills:

• Master in science, Mechanical engineering degree

• First experience of 2 years minimum in Mechanical Calculations, nuclear industry, or equivalent experience

• Knowledge of EUROCODE, ASME and RCC-M code

• Knowledge of 2D and 3D design software: PDMS (if possible), NavisWorks, PIPESTRESS, RSTAB, ANSYS APDL and WORKBENCH

• Knowledge of piping and support calculation tools

• Experience working in a multicultural environment

• Curious, motivated to learn

Desirable Qualifications, Experience and Skills:

• Knowledge of the HPC project or previous EPR and associated studies/doctrine is a real asset

• Knowledge of Nuclear engineering and specificities, building NI, CI & BoP buildings would be beneficial.

• Excellent Interpersonal skills, conscientiousness, organisation, writing ability

• Good organizational, writing and oral expression skills in English are essential for the realization of the activities of document production, steering and interfaces with the various correspondents.

• Ability to meet commitments and deadlines.

Level of Experience: 2 years of professional experience post-graduation

The commercial expectation for this role is (delete as applicable):

This role will require BPSS Clearance.

Benefits

Competitive Salary & Benefits

· days annual leave per year raising to 28 (x1 day for 2 years service)

· % employer pension contribution (salary sacrifice)

· % min Employee

·       Individual and family private health care

·       Life assurance (4x salary)

·       Employee assistance programme (EAP)

·       Income Protection

·       Professional Membership (1 per year)

·       Cycle to Work Scheme

·       Language Courses
Plus more including access to training and development opportunities.

We are an equal opportunity employer.  We value and plan to continue to build on the benefits of our diverse working environment and recognise a priority to improve gender mix.

Everyone will be considered without attention to race, colour, religion, sex, sexual orientation, gender identity, national origin, or disability status.

The post is restricted due to the nature of the role and the export control regulations which apply. All applicants will be subject to national security and export control vetting processes.

Job location

United Kingdom, Bristol

Job location (site)

Hinkley Point C

Travel

No

Job family

Standard

Applicant criteria
Minimum level of education required

Master

Minimum level of experience required

Experienced

Employment level

Non cadre

Extra informations
Background checking required ?

Non

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