Process Engineer II - III

On-site, Branford, CT (must be willing to relocate to the Bridgeport/Stamford area within one year of the start date)

Oxylus Energy is a climate-tech company building solutions that can scale. Our breakthrough electrochemical technology converts carbon dioxide into low-carbon fuels and chemicals, reducing the world's dependence on fossil fuels. We are a team of scientists, engineers, and problem solvers working to make that future real.

As Process Engineer, you will own the balance of plant for Oxylus’ CO₂ electrolyzer systems and lead the integration of our electrolyzer technology with downstream thermal heterogeneous catalysis. You will design the processes that supply, condition, separate, compress, and convert gases around our electrolyzer stack, turning CO-rich product streams into feed stocks for processes such as Fischer-Tropsch or methanol synthesis.

This is a hands-on role. You will develop process designs and models, and you will also build, commission, and operate high-pressure reactor systems and pilot equipment in the lab. You will work closely with our electrochemists, materials scientists, mechanical and controls engineers, and leadership to move our integrated process from the lab toward pilot scale. Because our systems handle pressurized and hazardous gases, including CO and H₂, safe design and operation are central to this job.

We are hiring at the Engineer II or III level and will match the title to your experience.

• Own the design and specification of the balance of plant, including CO₂ supply and conditioning, gas separation and purification, compression, water management, heat exchange, and product handling.

• Lead the integration of our electrolyzer with downstream thermal heterogeneous catalytic processes, including matching stream composition, pressure, temperature, and flow between unit operations.

• Design, build, and operate high-pressure catalytic reactor systems, and evaluate catalyst performance, including activity, selectivity, and stability.

• Develop reactor designs and process models, using mass and energy balances, kinetics, and heat-transfer analysis to size equipment and set operating conditions.

• Select and specify pumps, compressors, heat exchangers, separators, valves, and other process equipment, and work with vendors on quotes and delivery.

• Create and maintain process flow diagrams (PFDs), P&IDs, and equipment datasheets.

• Lead or contribute to process hazard analyses, such as HAZOP, for high-pressure and hazardous-gas systems, and make sure designs follow applicable codes and standards.

• Commission and troubleshoot integrated systems, analyze process data, and use results to improve performance and reliability.

• Support techno-economic analysis and scale-up planning by providing process design inputs and performance data.

• At the Engineer III level: set the process architecture for integrated systems, lead pilot-scale design efforts, and mentor other engineers.

• A degree in chemical engineering or a related field, with experience matching the level:

  • Engineer II: B.S. with 2–4 years or M.S. with 1–2 years of relevant experience.

  • Engineer III: B.S. with 4–6 years, M.S. with 2–4 years, or Ph.D. with 0–2 years of relevant experience.

• Hands-on experience designing, building, or operating high-pressure reactor systems.

• Experience with heterogeneous catalysis, including catalyst testing and performance evaluation.

• Solid grounding in reactor design, kinetics, and mass and energy balances.

• Experience specifying, operating, or troubleshooting pumps and compressors.

• Ability to create and review PFDs and P&IDs.

• A strong commitment to safety, especially around pressurized systems and flammable or toxic…