Thermal-hydraulic Design Engineer

City

Marseille

Activity

Engineering and services (nuclear and complex industry)

Function

Engineering// expertise/ project/ r&d

Contract type

CDI

Working hours

Full-time

Compensation

**Offer description**:
Your mission

As an engineering and services company, Onet Technologies' main mission is to support players in the nuclear industry (whether linked to the production of low-carbon energy, research or defense) in the development of projects, operation, maintenance in safe conditions or decommissioning of nuclear facilities.

To support the growth of our engineering projects for the nuclear industry, we are recruiting a thermal-hydraulic design engineer.

Reporting to the Technical Department and the Pressure Equipment and Regulations Division, you will be involved in complex thermal and mechanical equipment design projects for the nuclear industry and will carry out various thermal, hydraulic and thermo-hydraulic (and possibly mechanical) studies in collaboration with other teams or departments in the Onet Technologies Technical Department.

In this context, your main tasks will be as follows:

- Participate in all phases of a project, from the tender phase, studies (feasibility, APS, APD, EXE...) to implementation (consultations, contracting, construction, assembly), factory tests, on-site commissioning (assembly and tests).
- Participate in the design of various systems and equipment in collaboration with the project team and other Technical Department design offices.
- Analyze input data for a call for tenders, a project or a project, and define and justify calculation hypotheses based on equipment life phases, in line with nuclear standards.
- Carry out calculations (finite element and analytical) for thermal-hydraulic (and possibly mechanical) dimensioning in accordance with nuclear standards.
- Produce technical parts within its area of competence and scrupulously respecting the technical perimeter
- Draft specifications, consult suppliers and analyze bids received
- Participate in the technical verification of deliverables produced in its area of expertise
- Participate in and/or lead internal and/or customer and/or subcontractor-supplier technical meetings
- Anticipate and identify potential technical, cost and scheduling problems, and suggest areas for improvement.

Your assets

5 years' higher technical education (engineering school or university equivalent) in fluid mechanics, thermal-hydraulics and numerical simulation, ideally with a minimum of 5 years' experience in thermal-hydraulic calculations in a nuclear design office.

A basic knowledge of mechanics would be a real plus.
- Proficiency in at least one of the following software packages: Aspen EDR, EchTherm, HTRI
- Knowledge of ANSYS CFD software (CFX or Fluent)

Ideally, you will have initial experience in the following areas:

- Thermal-hydraulic (and possibly mechanical) design and sizing of heat transfer equipment
- Numerical simulation calculations CFD

You therefore have solid experience in nuclear equipment, particularly under pressure.

Knowledge of the following codes and standards is a real plus to facilitate job start-up: RCC-M, TEMA.

**Our business**:
Onet, a French family-owned group founded in 1860, is an international player in engineering and services. Its more than 70,000 employees work every day to help create ever healthier, safer and more reliable environments.

More about Onet

Onet Technologies is a recognized player in engineering, maintenance and on-site operations for the nuclear industry. We offer our customers end-to-end solutions, from engineering studies and plant operation to manufacturing and on-site deployment. We are 3,000 enthusiasts who have been tackling the challenges of nuclear energy for over 40 years. Onet Technologies is part of the Onet Group, an engineering and services group.