Product Engineering Intern
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
Are you interested in the intersection of engineering, data, and industrial energy systems? At Nel Hydrogen, you will work closely with large‑scale electrolyzer products and contribute to data‑centric testing, monitoring, and performance verification of MW‑scale hydrogen systems.
We are now looking for a Product Engineering intern this summer to join our Large Scale Electrolyzer products team in Wallingford, CT. This is a paid internship.
About the role
As an Intern, you will support the Large Scale Electrolyzer Products team, which is responsible for designing, sustaining, and improving Nel's core products. Increased data collection, remote monitoring, and performance verification using new sensor technologies are key priorities in the 2026 product roadmap.
This position will focus on data‑centric aspects of testing and performance evaluation for the MW‑scale MC Series electrolyzer system, supporting areas such as mechanical component selection, system configuration, material specifications, and overall design improvements.
Key Tasks and Responsibilities
- Support onboarding and refinement of a consolidated data collection and monitoring solution, in cooperation with Nel's alkaline technology group
- Verify communication support and assist in optimizing user interfaces and data‑access tools for engineers
- Collaborate with service engineers to identify data trending and monitoring needs
- Assist data collection and data reduction activities related to product engineering verification using new sensor systems
- Review operational data to identify performance trends and system characteristics
- Assist in running tests, collecting data, and developing technical report content, as applicable
Qualifications and Desired Competencies
- Currently studying Computer Science, Electrical Engineering, Mechanical Engineering, or a related field
- Specific interest in automation, communications, or software programming
- Knowledge of file transfer and communication systems (e.g. TCP/IP, MODBUS, OPC UA, or similar)
- Understanding of database or data‑visualization tools, such as Azure‑based solutions or Excel/Power BI
- Background in sensors, instrumentation, mechanical systems, or equipment is an advantage
If you're excited to work with real data, learn new skills, and collaborate with others on meaningful engineering projects, we encourage you to apply.
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 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.
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)
Apply now
Job expired?Please let Nel Hydrogen know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
Apply now
Job expired?Please let Nel Hydrogen know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
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About the role
April 15, 2026
Internship
Company
- Wallingford, Connecticut, United States
Currently studying or pursuing a degree
UTC-04:00
