Thermodynamic Design Engineer - Enex Technologies

Thermodynamic Design Engineer

We are looking for a Thermodynamic Design Engineer to join our technical team for the development and optimization of industrial CO₂ refrigeration systems. The selected candidate will be responsible for the thermodynamic design of refrigeration units, analyzing refrigeration cycles, selecting key components, and contributing to the improvement and industrialization of the systems. Prior experience specifically with CO₂ is not strictly required — we will provide a dedicated training path to support the learning process. The role involves constant interaction with the mechanical and electrical departments, as well as active participation in technical validation and project documentation.

  • Engineering Degree or PHD in Mechanical Engineering, Energy Engineering, or related fields
  • Previous experience in the refrigeration sector is not strictly required but appreciated.
  • Knowledge of refrigeration cycles, fluid dynamics, and heat transfer principles
  • Familiarity with CO₂ systems is appreciated, but not strictly required
  • Familiarity in technical drawing software (e.g., AutoCAD) is appreciated
  • Good command of English (written and spoken)
  • Familiarity with programming tools such as Python or VBA is not required but would be highly appreciated, especially for process automation.
  • Ability to work in a team, under pressure, and with a structured and methodical approach.
  • Proactive approach to technical challenges

Responsibilities and deliverables include

  • Manage the development of the project from order intake to the completion of the technical file, including the drafting of the P&ID and the Bill of Materials (BOM).
  • Prepare and update the technical documentation, including the technical file
  • Select and size thermodynamic components (e.g. compressors, heat exchangers, valves)
  • Collaborate with mechanical and electrical design teams throughout the project lifecycle
  • Support product industrialization, focusing on performance, reliability, and efficiency
  • Contribute to R&D activities for new technologies and solutions in sustainable refrigeration
  • Participate in technical reviews, system validation, and testing activities
  • Interface with suppliers to evaluate and integrate new components
  • Support and follow PED (Pressure Equipment Directive) certification activities throughout the project lifecycle.
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    FRANÇOIS AUDO

    CEO Enex Technologies

    • Joined Enex Technologies from Carrier, where he was Vice President and Managing Director of Carrier Residential Light Commercial Europe and Riello
    • More than 30 years of executive experience in manufacturing companies
    • Former Managing Director HVAC France at Carrier
    • Former President for Southern Europe of Xylem Inc.
    • Former Director at ITT, and Sales Engineer at CSI
    • Earned a bachelor’s degree in physics at Brighton University (UK)
    FRANCISCO VALLINA

    Vice Chairman Enex Industrial

    • Joined ENEX Technologies from EOS Refrigeration in 2023, where he was founder & CEO
    • More than 30 years’ experience in the Refrigeration sector as a managing director and then founder of a leading ammonia refrigeration OEM, generating more than 30% annual growth
    • Launched several innovative products focused on energy efficiency and environmental sustainability
    • Obtained an Engineering degree from UPC – Polytechnic University of Catalonia, Barcelona
    FABRICE SEGURA

    Chief Operating Officer

    • Based in Treviso, Italy
    • Joined Roen Est in 2020 as Chief Operating Officer
    • 20 years’ experience in operations, lean manufacturing, product commercialization and supply chain with Danfoss and Rivacold
    • Earned a degree in Engineering from the University of Saint Etienne in France
    LUIS CRESPO BARBER

    Chief Commercial Officer

    • Joined Enex Technologies from Carrier, where he was Managing Director, Commercial HVAC Europe
    • More than 20 years’ experience in the HVAC sector leading transformation, with a track record of significantly improving the financial performance of the businesses he leads
    • Earned a degree in Economics Business and Administration at Universidad Complutense
    • Completed programs at the University of Virginia’s Darden School of Business, and IESE Business School
    SERGIO GIROTTO

    Founder Enex & CTO Enex Technologies

    • Earned a Mechanical Engineering degree from Padova University
    • Based in Padernello (TV), Italy
    • Founded Enex Srl in 2004 to design and develop high efficiency refrigeration systems using natural refrigerants with low global warming potential, revolutionizing the industry
    • Authored 16 industry papers including two international peer-reviewed journals
    • Awarded 17 patents for technological innovations that continue to advance the efficient application of CO₂ refrigeration systems in all climates