Mechanical Design Engineer
Nel Hydrogen
Company Overview
Nel Hydrogen, officially Nel ASA
Oslo, Norway
1927
Approximately 1,000 employees (source: linkedin.com). Revenue figures for 2023 are not detailed in available sources.
What They Do
Nel Hydrogen focuses exclusively on hydrogen technology, specializing in both PEM (Proton Exchange Membrane) and alkaline electrolysers that produce renewable hydrogen from water using electricity, primarily sourced from renewable energy. Their product lineup includes the S Series PEM electrolysers, which can generate up to 1.05 Nm³/h of hydrogen with a purity of 99.9995%, suitable for various industrial applications. Larger units can produce up to 30 Nm³/h at even higher purity levels, designed for low maintenance and compact installations that require deionized water and power ranging from hundreds of watts to over 1 MW (source: nelhydrogen.com). In addition to manufacturing electrolysers, Nel provides engineering services, technical support, and water deionization systems, facilitating on-demand hydrogen production that reduces costs, storage needs, and emissions across sectors such as transportation, refining, steel, ammonia, and energy storage (source: nelhydrogen.com). Their target markets encompass industrial applications, maritime, heavy transport, and power-to-gas solutions, with a diverse customer base that includes fertilizer producers, refineries, and renewable energy developers (source: ammoniaenergy.org). Nel's competitive edge lies in its 98-year legacy of technological innovation, its global scale with a 1 GW annual alkaline production capacity at Herøya, and its readiness for multi-GW deployments, positioning it favorably against competitors in the hydrogen sector (source: nelhydrogen.com).
Projects & Track Record
Nel Hydrogen has a rich history of notable projects, including the supply of 20 MW PEM electrolysers to Fertiberia's renewable ammonia facility in Puertollano, Spain, which recently opened. They also established the world's first public hydrogen fueling station in Reykjavik, Iceland, in 2003, showcasing their pioneering role in hydrogen infrastructure. Additionally, Nel has provided Glencore Nickelverk with a second electrolyser at Kristiansand, Norway, for on-site hydrogen production (source: ammoniaenergy.org). Historically, their track record includes the Rjukan plant, operational since 1940 with a capacity exceeding 30,000 Nm³/h, and the Glomfjord plant established in 1953. They have also delivered 448 electrolysers and fueling equipment to Nikola Motor Company to support U.S. infrastructure, alongside a 5 MW prototype developed with Yara at Porsgrunn for ammonia production by 2022 (source: bccresearch.com). Ongoing major projects include over 1 GW of alkaline electrolysers for Hy Stor Energy's Mississippi hydrogen hub and technology licensing agreements with Reliance Industries for manufacturing in India, further solidifying Nel's position in the global hydrogen market (source: nelhydrogen.com).
Recent Developments
In the past two years, Nel Hydrogen has undergone significant transformations, including the spin-off of its Fueling division as Cavendish Hydrogen on the Oslo Stock Exchange in 2024, allowing the company to refocus on its core electrolyser business (source: bccresearch.com). They have made a final investment decision to industrialize next-generation pressurized alkaline technology after extensive development and testing, operationalizing the Herøya Line 2 to achieve a total capacity of 1 GW. Furthermore, Nel announced plans for four new coastal plants in Norway aimed at supporting maritime and industrial hydrogen production (source: nelhydrogen.com). Major contracts secured include technology provision for GreenH's Enova-supported projects in Kristiansund and Slagentangen, with a minimum capacity of 10 MW each, and a PEM order from HyFuel and Kaupanes exceeding USD 50 million (source: prnewswire.com). Other milestones include the PosHYdon offshore hydrogen demonstration project and integration with Solar Foods, highlighting Nel's commitment to advancing hydrogen technology (source: nelhydrogen.com).
Working There
Nel Hydrogen offers a variety of roles across engineering, manufacturing, research and development, sales, and project management. Key departments include Nel Hydrogen Electrolyser, which oversees operations in Notodden, and the legacy Fueling division, which was based in Herning, Denmark, prior to the 2024 spin-off (source: nelhydrogen.com). Active hiring is likely concentrated at the Oslo headquarters, the Herøya factory, and Notodden, especially with the ramp-up of the new 1 GW capacity and ongoing projects like GreenH and Hy Stor (source: prnewswire.com). The company emphasizes technology development, as evidenced by the appointment of CTO Andreas Søreng, who brings extensive experience from the renewable energy sector (source: nelhydrogen.com). Nel's culture is characterized by a 98-year legacy of innovation and a commitment to global teamwork on multi-GW orders, with CEO Håkon Volldal promoting a focus on research and development to enhance efficiency and learn from challenges (source: nelhydrogen.com). While specific benefits are not detailed, as an Oslo-listed firm, Nel is expected to offer competitive compensation packages typical for technology manufacturing companies (source: prnewswire.com).
Last updated on Feb 23, 2026 | Report an issue
Job Description
At Nel, you'll work at the forefront of hydrogen innovation - contributing to the design and development of electrochemical systems that power the green energy transition. In this role, you will apply your mechanical engineering expertise to complex component and system design, helping improve performance, reliability, and manufacturability.
You will work across engineering and manufacturing, combining analytical depth with hands-on problem solving. This is an opportunity to make a tangible impact while working in a collaborative, multidisciplinary environment.
Your Role
As a Mechanical Design Engineer, you will be a key contributor to component and system design, with responsibility for analyzing mechanical stress and deformation, fluid flow, load distribution, tolerancing, and design for manufacturability.
You will prepare detailed documentation and participate in in-depth technical reviews to ensure robust and scalable design solutions.
What You Will Do
- Develop and design components and assemblies for electrochemical cell stacks to meet functional requirements while minimizing cost; order and inspect components for compliance with specifications
- Perform engineering calculations to support design concepts, including:
- Stress analysis / FEA for mechanical robustness
- CFD for fluid flow distribution
- Tolerance modeling
- Use PTC Creo to create detailed drawings, assemblies, and bills of materials
- Assemble and test cell stacks and associated systems using equipment and hand tools
- Prepare test plans, technical reports, drawings, and assembly processes
- Conduct research and testing to extend electrochemical cell stack functionality, including:
- Identifying cost reduction opportunities
- Improving system reliability
- Exploring new applications for existing technology
- Collaborate with the manufacturing team to:
- Design for manufacturability and volume production
- Develop inspection criteria
- Evaluate component suppliers
- Support manufacturing in the disposition of non-conforming products and assist technical service teams with troubleshooting field returns
The above statements reflect the principal functions of the position and shall not be construed as a detailed description of all work requirements that may be inherent in the job.
What We Are Looking For
We are looking for a hands-on, analytical, and collaborative mechanical engineer who thrives in a multidisciplinary environment. You bring strong problem-solving capabilities, a high level of ownership, and the ability to translate complex engineering challenges into practical design solutions. You're comfortable working across design, analysis, and manufacturing, and communicate effectively with both technical and cross-functional stakeholders.
- Bachelor's or Master's degree in Mechanical Engineering, or equivalent
- 3-8 years of industry-related experience (e.g., fuel cells, fluidics, gas separation, flow batteries, piping systems, pressure vessels), or PhD in a related field
- 3+ years of experience designing and analyzing precision components for complex assemblies
- Ability to work effectively in a highly collaborative, multidisciplinary team environment
- Experience with design of pressure containment devices or sealing systems
- Familiarity with manufacturing processes, including molding, machining, forming, and joining methods
- Experience supporting manufacturing operations
- Experience with supplier interaction and evaluation
- Working familiarity with safe work practices and hazard analysis
Preferred Skills
- Experience with 3D CAD (PTC Creo strongly preferred)
- Experience with FEA (PTC Simulate or ANSYS preferred) or CFD (ANSYS CFX)
- Experience with project planning
What we can offer
- An opportunity to work in a company in strong growth and a leading position in the market.
- A visible role with many exciting interfaces, internally and externally
- The opportunity to work in a global company that contributes to the green transition.
- A dynamic and highly professional working environment consisting of competent and committed colleagues.
Nel Hydrogen provides comprehensive health and insurance benefits for its employees as well as a short-term incentive program. The Company offers competitive paid vacation time, sick leave, and holidays.
The Company has a published Code of Conduct that all employees are expected to follow.
Nel Hydrogen is the global leader in on-site hydrogen generation and the largest electrolyser manufacturer in the world. Nel Hydrogen is leading the charge into the new green hydrogen economy.
If you are driven by personal initiative combined with loyalty and commitment to your team and the ability to convert complex issues into simple solutions, then we want to talk to you. Join a company that is on the cutting edge of new energy innovations, with an energized, progressive culture.
Visas
- Nel will only employ those who are legally authorized to work in the United States. This is not a position for which sponsorship will be provided.
- Individuals with temporary visas such as E, F-1, H-1, H-2, L, B, J, or TN or who need sponsorship for work authorization now or in the future, are not eligible for hire.
We are an equal opportunity employer-M/F/Disabled/Veteran and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law. All employment is decided based on qualifications, merit, and business need. Applicants have rights under Federal Employment Laws: FederalEnglish.pdf)
Applications are reviewed on a rolling basis, so don't wait to apply! If you have any questions, feel free to reach out to us at [email protected].
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Apply now
Job expired?Please let Nel Hydrogen know you found this job on Rejobs. It helps us grow and get more people working in renewable energy.
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About the role
July 2, 2026
July 3, 2026
Full time
On-site
Company
- Wallingford, Connecticut, United States
3-8 years of industry-related experience or PhD
UTC-04:00