Senior Mechanical Engineer
Hystar is looking for a Senior Mechanical Engineer.
Are you passionate about technology for a greener world? You might be our new Senior Mechanical Engineer. Green hydrogen has a central role in shaping a sustainable energy future. At Hystar, we believe the full potential of renewables can only be realized by large-scale energy storage and use of hydrogen in heavy-duty transportation and industry.Based on a new and unique patented PEM electrolyser concept, Hystar is currently developing our next-generation PEM electrolyser to accelerate the deployment of large-scale green hydrogen production. Hystar is an innovative, fast growing, high-tech company, based at Høvik, just outside Oslo, Norway. At Hystar, you will have the opportunity to shape the future of the company as well as develop your own career.We are currently operating a 1MW PEM electrolyser at the Kårstø gas processing plant in Norway, as well as delivering units in Finland and Poland later this year and you will be a key resource in these projects. Are you the next star in the Hystar constellation?
Job description
You will be responsible for the overall mechanical design, standardization, and manufacturability of our containerized PEM electrolysers. This role requires a deep understanding of mechanical systems, structural design, relevant product standards and integration of process and electrical systems. The ideal candidate will have experience from collaborating with fabrication partners and leading multidisciplinary engineering teams of 10-15 professionals, including process, electrical, and mechanical engineers.
Duties and responsibilities
- Lead the mechanical design and development of containerized PEM electrolysers, ensuring compliance with industry standards and safety regulations.
- Drive product standardization efforts to enhance manufacturability, cost efficiency, and scalability.
- Collaborate with fabricators and suppliers to optimize mechanical components and ensure design for manufacturability.
- Oversee system integration of mechanical, process, and electrical components within containerized units.
- Provide technical leadership to a multidisciplinary engineering team (10-15 engineers) across mechanical, process, and electrical disciplines.
- Support installation, commissioning and service of the electrolyser systems, working closely with service and production teams.
- Lead or contribute to design reviews, risk assessments, and failure mode analysis to ensure system reliability and performance.
- Stay updated on industry best practices, materials, and innovative technologies in hydrogen production and mechanical system design.
- Contribute to shaping and growing the organization.
Qualifications and requirements
- Bachelor’s or Master’s degree in Mechanical Engineering or a related field.
- 8+ years of experience in mechanical design and engineering, preferably within hydrogen, energy, or industrial equipment sectors.
- Proven expertise in designing containerized systems, pressure vessels, or modular industrial equipment.
- Strong knowledge of mechanical standards, CE, ASME and ISO regulations for electrical machinery, pressurized and high-purity gas systems.
- Experience working with fabricators and external suppliers to develop manufacturable designs.
- Leadership experience managing an engineering team (10-15 people) across mechanical, electrical, and process disciplines.
- Proficiency in CAD software (Creo, SolidWorks, AutoCAD, or similar) and FEA tools for structural analysis.
Strong problem-solving skills, with the ability to work in a fast-paced and evolving industry.
Why join us?
A dynamic and international working environment with skilled colleagues. Competitive remuneration package. In addition, Hystar offers great opportunities for accelerated career development and personal growth. We also offer free parking, free shuttle bus, excellent insurance – and a fantastic office location close to Oslo at Høvik, Norway.
Professional relocation services provided if needed.
Questions?
If you have any questions regarding Hystar or the position, please contact:
CTO, Alejandro Barnett at alejandro.barnett@hystar.com
Deadline
As soon as possible and no later than 28.03.2025
Accession
As soon as possible and by appointment
- Department
- Product Development & Engineering
- Locations
- Høvik

Høvik
Shoot for the stars
Hystar is a high-tech company shooting for the stars, and we want the best talents to join us from the very beginning. By becoming one of the first members of our team, you can help shape both the future and the culture of our company.
About Hystar
Hystar specializes in high-performance PEM electrolysers for large-scale green hydrogen production. Our patented technology allows Hystar electrolysers to operate more efficiently and at higher current densities than any other electrolyser technology on the market, giving us a considerable commercial advantage.
Green hydrogen plays a key role in shaping a sustainable energy future. At Hystar, we believe that the full potential of renewables can only be realized by large-scale energy storage and the use of hydrogen in heavy duty transportation, the maritime sector, and industrial processes.
Hystar is an innovative, fast growing, high-tech company, based at Høvik, just outside Oslo, Norway. At Hystar, you will have the opportunity to help shape the future of the company as well as develop your own career.
Senior Mechanical Engineer
Hystar is looking for a Senior Mechanical Engineer.
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