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TotalEnergies is developing numerous large-scale oil, gas and renewable energy projects, as well as decarbonization projects, all over the world. It’s our established expertise. These projects, which meet strict requirements about safety, emission reduction, and environmental impact, also integrate the most advanced technological innovations. This is our pioneering spirit.

The development of these projects is essential to TotalEnergies' transition strategy, both because the industrial expertise acquired on historical activities (such as in hydrocarbons) is put at the service of the Company’s new activities (such as in renewables) but also because investments in low carbon projects are supported by the results of Oil and Gas projects.

You want to take part in this transition towards multi-energy? Contribute to major projects, from the study phase to starting up? Work internationally? Are you ready to try a new experience or add a new chapter to your professional life? Join our teams of engineers and technicians!

Recognized expertise in major project management

Our engineers and technicians, representing all the technical disciplines of TotalEnergies, work together to design, develop and deliver our projects: project engineers, process engineers, operations engineers, HSE experts, logistics, maintenance or inspection, electrical engineers, geophysicists and geologists, reservoir engineers, drillers, modeling engineers… Our technical and industrial expertise, the ability of our teams to innovate and work in an integrated way on major energy projects, as well as the industrial experience we have acquired throughout our history are recognized by our partners.

For all our projects, innovation is always on the move. It enables us to push back technological limits, to propose ever safer, more efficient and less costly developments, and to be more respectful of the environment and climate. What's more, our activities bring us closer to the populations of the countries where we operate: making a long-term commitment to a region also means developing profitable, sustainable projects that create jobs and local skills.

Join OneTech's multidisciplinary teams

The mission of OneTech is to provide the technological and scientific expertise needed to support TotalEnergies' development projects right from the design stage, and to support the operation of all its activities around the world. OneTech's 3,400 employees - engineers, technicians, researchers and support functions - spread across 9 sites in Europe are fully committed to our balanced transition strategy. By bringing together TotalEnergies' technical and R&D skills within OneTech, the company is strengthening its capacity to develop major industrial projects, while deploying its operational excellence to be ever more innovative.

  • 3 400
    engineers, technicians, researchers...
  • 9
    working area across Europe
  • 5
    major research hubs around the world

An experience to support TotalEnergies' new activities

Our ability to manage major industrial projects, the technical expertise and know-how of our teams, our knowledge of engineering, construction and heavy industrial equipment supply companies, and our capacity to work on every continent are all assets of TotalEnergies. Today, these expertise are at the service of the development of the company's new activities, such as renewable energies, CO2 capture and storage or natural carbon sinks. They represent a competitive advantage for the successful transition of TotalEnergies.

In 2023, for example, each technologist worked on an average of 11 different projects, spread across all our businesses, enabling them to multiply their opportunities, develop their skills and apply their expertise to different projects. Similarly, our naval architecture experts are now deploying their skills on our new offshore wind farm construction and installation sites.

Discover all our flagship projects

E&P in Brazil


Offshore wind in Scotland


Our projects in USA


Discover all TotalEnergies' projects worldwide.