Junior Test Bench Engineer / Ingénieur bancs d'essais
Dioxycle
Paris, France
Posted on May 7, 2025
About Dioxycle
Dioxycle is pioneering breakthrough carbon utilization technologies that convert industrial emissions into sustainable chemicals with unprecedented energy and cost efficiency. By displacing fossil fuels for the production of key chemicals, Dioxycle has the potential to ultimately reduce over 800 million tons of CO2 per year, representing over 2% of the world's emissions.
At the core of our process is a novel "carbon electrolyzer", a machine capable of using just electricity and water to convert carbon emissions back into valuable everyday essential chemicals. Our team is innovating across chemical, mechanical and system engineering to turn carbon transformation into an economically feasible, industrial reality through this completely novel technological approach. Having completed our medium-scale Proof-of-Concept electrolyzer, we are now working towards a first-of-its-kind large-scale industrial prototype and are assembling key partnerships for future commercial roll-out.
We are supported by world-class funders including Lowercarbon Capital, Breakthrough Energy Ventures and Gigascale Capital and have raised $37M to date. We operate from two centers in Paris and California (so whether you are passionate about outdoors or good food/art scenes, we have a location for you to join!)
Your Mission
Dioxycle is hiring a Junior Test Bench Engineer to take care of our electrolysis test benches and prototypes. As a junior Test Bench Engineer, you will have a key hands-on role designing, assembling, and troubleshooting automated test benches. You will apply mechanical, electrical, and software skills in your every day work, contributing to continued improvement and operation of our extensive electrolyzer test systems. You will implement different regulation loops for pressure, temperature, flow, etc, and, more generally, contribute to the definition of the automation strategy.
Your Responsibilities
- Design, construction and improvement of end-to-end test benches, including the mechanical, electrical, software and process parts
- Troubleshooting and maintenance of the test benches, including instrumentation and controls
- Design of the electrolysis sub-systems using thermal and fluid calculations
- Testing and validation of the sub-systems through the implementation of test protocols
- Implementation and tuning of PID controllers
- Writing of documentation
- Benchmark suppliers and contact them
- Maintain inventory and improve the inventory system
We are looking for a pragmatic, hands-on, and versatile Test Bench Engineer who is dedicated to advancing our mission and possesses the skills outlined below.
Skillset we are looking for
- Having experience in combustion engine/fuel cell/ electrolyzer-based systems
- Mechanical gas and liquid management system building experience, including knowledge of relevant fitting types
- Experience with sensors and actuators for measurement and control of gases and liquids
- Realization of a heat balance
- Calculation of a pressure drop in a fluid line
- Coding of automation sequences in Python or C++ is a plus
- Experience using CAD programs is a plus
- Speaking English as it is our daily work language
Mindset we are looking for
- Commitment to the mission and ambition
- Irreproachable work ethic
- Do-it-yourself attitude
- Innovative spirit and problem-solving attitude
- Anticipation capabilities
- Safety and security awareness
- Radical open-mindedness: no ego. Ideas first
What we have to offer
- Unique journey: We are an early-stage company with a world-class team and a flat structure.
- Impact: We are building a product that will reshape century-old industrial processes to build a better, more sustainable and resilient world
- People-first: We love our people. We are excited to see one another every morning when coming to work. We choose people and they choose us to share a similar excitement.
- Feedback over ego: We are self-improving whilst helping others grow. We are no-ego doers and we are all responsible for shaping the company.
- International team: We are an international team made up of over 12 nationalities, and hopefully many more soon!
- Fun: We constantly strive to cultivate a great work atmosphere and organize regular team events.
- Competitive compensation packages
- Generous Employee Stock Ownership plans
- Health Insurance: Medical, dental, and vision coverage.
- Ergonomic work stations & state-of-the-art equipment
Our Process
- 2 x 30 minute intro call with the team to understand your career expectations, and answer your questions
- 60-minute technical video call with a presentation about yourself and brief case study, followed by technical questions, with Peter (Systems Manager) and Bastien (Engineering Director)
- Onsite interview to meet the team, see the lab & have lunch with the team!
- A series of reference calls with provided contacts
If you do not meet 100% of the qualifications outlined above, tell us why you would still be a great fit for this role in your application!
Diversity and Inclusion
We are looking for people of diverse backgrounds that bring a plethora of skills, perspectives and mindsets to the table that can spur originality, imagination, creativity, and fun!