Job Description:
1. Design and develop advanced PFSA membranes by tailoring polymer
architecture and membrane thickness through solution casting and
coating processes to enhance PEM water electrolyzer performance and
durability.
2. Develop advanced structure and composite membranes to balance
conductivity, mechanical strength and gas crossover.
3. Optimize ionomer dispersions: solvent systems, equivalent weight (EW),
solids content, rheology and annealing conditions.
4. Measure proton conductivity (in-plane and through-plane), IEC, water
uptake, swelling, tensile and creep properties.
5. Develop and implement component-level test methodologies to evaluate
and characterize membrane properties, including mechanical, chemical,
thermal, and electrochemical performance.
6. Run accelerated stress tests: Fenton/OCV chemical degradation, fluoride
release rate, mechanical cycling and pressure-differential tests.
7. Use characterization techniques like FTIR, NMR, TGA, DSC, DMA,
SAXS/WAXS, SEM/EDX and XPS to relate structure to performance.
8. Assess H₂/O₂ crossover and membrane behavior in single-cell and short-
stack electrolyzer tests with the MEA level
9. Transfer lab processes to pilot roll-to-roll casting/coating with process
engineering; define specs and QC methods.
10. Analyze the post operated MEA to identify the failure modes (Thinning,
Pinholes and chemical attack etc.)
11. Qualify advanced membrane technologies through rigorous testing,
reliability assessment, and performance verification under application-
relevant operating conditions.
12. Develop and implement safe work practices for PFSA ionomer handling
and testing.
13. Collaborate with cross-functional teams to translate membrane
performance requirements into robust qualification plans and acceptance
criteria.
EDUCATION AND EXPERIENCE REQUIRED :
1. Ph.D. in Chemical Engineering/Polymer Chemistry/Polymer Engineering or
a related field with 1+ years of industry experience or M.Sc./M.Tech
(Polymer chemistry/Polymer science and technology) with 3+ years of
industry experience
2. Experience with electrochemical methods: EIS, polarization curves,
conductivity cells, gas crossover measurement.
3. Working knowledge of PFSA ionomer chemistry: EW, side-chain structure,
phase-separated morphology, and degradation mechanisms is required.
4. Background in membrane durability under high differential pressure, high
current density or dynamic operation is essential.
5. Exposure to hydrocarbons or PFAS-free ionomer alternatives is desired
6. Track record of peer-reviewed publications or patents in ion-exchange
membranes is preferred.
Ohmium Culture :
At Ohmium, you are expected to embody and champion our core cultural values:
- Accountability: I own my tasks and execute on time.
Demonstrate strong accountability by owning deliverables and decisions, ensuring timely and consistent results.
- Teamwork: I will not let other teams fail.
Takes ownership beyond own team to support cross-team success and prevent failures, thereby fostering a collaborative work environment.
- Learning Mindset: I drive change and learn from mistakes.
Exhibits a strong growth mindset by proactively leading meaningful change and consistently learning from experience.
- Winning Attitude: I compete to win.
Showing up every day with a strong perspective, to drive results and be the BEST in Green Energy.
Ohmium is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.
Skills Required
- Ph.D. in Chemical Engineering, Polymer Chemistry, Polymer Engineering, or a related field with at least 1 year of industry experience
- Alternatively, M.Sc. or M.Tech in Polymer Chemistry, Polymer Science, or Polymer Technology with at least 3 years of industry experience
- Experience with electrochemical methods including EIS, polarization curves, conductivity cells, and gas crossover measurement
- Working knowledge of PFSA ionomer chemistry, including equivalent weight, side-chain structure, phase-separated morphology, and degradation mechanisms
- Experience with membrane durability under high differential pressure, high current density, or dynamic operation
- Exposure to hydrocarbons or PFAS-free ionomer alternatives
- Peer-reviewed publications or patents in ion-exchange membranes
What We Do
Ohmium's mission is to accelerate the adoption of green hydrogen to decarbonize hard-to-abate sectors and enable a low-carbon future. Ohmium designs, manufactures and deploys modular, scalable proton exchange membrane (PEM) electrolyzer systems that enable cost-competitive green hydrogen production. Ohmium’s systems are vertically-stackable and integrate advanced power electronics, delivering superior value for a wide range of commercial and industrial applications in terms of safety, energy density, scalability and ramp rate. The human-scale electrolyzers are efficient to manufacture, quick to transport and easy to maintain. This versatility enables cost-effective plug-and-play operations that can scale rapidly. Ohmium has a global green hydrogen project pipeline across the U.S., Mexico, Europe and Asia.
