Job Description

Enable data‑driven performance for MW‑scale electrolyzer systems

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 Nel Hydrogen

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.

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)