Junior Test Bench Engineer / Ingénieur bancs d'essais

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 industrial-scale electrolyzer prototype, we are now working with our chemical and downstream offtakers towards First-of-a-kind plant deployment and subsequent commercial roll-out.
 
We are supported by world-class funders including Bill-Gates-founded Breakthrough Energy Ventures, Lowercarbon Capital and Gigascale Capital and have raised $40M 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 seeking a hands-on Junior Automation & Electrical Engineer to join our hardware team. You'll be working directly on the control systems that operate our electrolyzer stacks - programming PLCs, maintaining wiring and instrumentation, and helping us build a scalable deployment architecture as we grow from 40 systems to many more.
 
This is a role for someone who loves being close to the hardware, is comfortable picking up new tools quickly, and wants to see the direct impact of their work on real physical systems. You'll have real ownership over a critical part of our systems, at a moment when the team and the fleet are both growing fast. The problems are hard, the impact is direct, and the work is never boring. 
 
Your key responsibilities will center around:
- Program and maintain PLC-based control systems (Beckhoff) on our lab and field electrolyzer units. This covers lab-scale test units of small and medium size but also includes onsite industrial-scale pilots (that are so big you need to lift them with a crane)
- Wire, install, and troubleshoot sensors, actuators, and electrical panels
- Work with our team to configure new systems and contribute to how we standardize deployments going forward
- Collaborate with Dioxycle's software engineers to integrate HMI graphics with control logic
- Participate in the retrofitting of legacy systems with new-generation PLCs
- Occasionally interface with existing C-based code on older systems
 
We're open to a few different profiles - what matters is curiosity, hands-on instinct, and a genuine interest in automation work. Experience with PLCs is a huge plus.

Abilities and expertise 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

- Professional 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 17 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

- An initial video call with Grace, Director of People, to discuss Dioxycle's mission, get to know you, understand your career expectations, and answer your questions (30 mins)

- Call with your future manager, Peter, Head of Systems (30 mins)

- Technical deepdive interview/case study with Peter, Head of Systems (1 hour)

- Onsite interview including Cofounder interview & opportunity to tour our technology & meet the wider team (2-3 hours)

- A series of reference calls with provided contacts