Manufacturing & Process Engineering Intern, Summer 2026

We are looking for a detail-oriented Manufacturing & Process Engineering Intern to support our engineering and manufacturing teams by improving how critical equipment and process knowledge is documented, organized, and used across operations.

This is a hands-on opportunity to work directly with engineers, technicians, and manufacturing teams to create troubleshooting resources, process documentation, and operational support tools that help improve manufacturing efficiency and reduce downtime.

If you enjoy solving problems, organizing technical information, and working in fast-paced manufacturing environments, this is a great opportunity to gain real-world engineering experience with meaningful impact.

Essential Duties and Responsibilities

• Create and improve troubleshooting guides, setup instructions, and visual work instructions

• Help build standardized equipment documentation and centralized troubleshooting libraries

• Document process settings, recovery procedures, and equipment operating parameters

• Audit existing manufacturing documentation for accuracy and completeness

• Partner with engineering, maintenance, and manufacturing teams to capture and organize technical knowledge

• Support continuous improvement initiatives focused on process robustness and operational efficiency

• Live the company culture of integrity, teamwork, self-discipline, and professional competence.

• Other duties as assigned.

Minimum Qualifications (Knowledge, Skills, and Abilities)

To perform this job successfully, the individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Education

Knowledge/Skills/Abilities

• Currently pursuing a degree in Mechanical Engineering, Industrial Engineering, Materials Science, or a related field

• Strong organizational skills and attention to detail

• Comfortable working with data in Excel, JMP, Python, or similar tools

• Basic understanding of manufacturing data and statistics (yield, Cp/Cpk, process variation)

• Strong communication skills and ability to clearly summarize technical information

• Prior internship, lab, or manufacturing experience is a plus, but not required

Physical Demands and Work Environment

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this position. Reasonable accommodation may be made to enable individuals with disabilities to perform the functions.

Working Conditions/Hours/Location

This role is an hourly position, and the intern will be required to work at least 20-25 hours per week during the summer. The start date and duration of the internship are flexible depending on availability, with a minimum commitment of 8 weeks.

Location

Internship will take place 100% onsite in San Carlos, CA HQ’s

****Additional Information****

No housing or relocation stipend is available for interns at this time.

Sponsorship for employment visa status for internship positions is unavailable at this time.

Physical Demands – Office and Manufacturing Environment

While performing the duties of this position, the employee is regularly required to talk or hear. The employee frequently is required to use hands or finger, handle, or feel objects, tools or controls. The employee is required to stand; walk; sit; reach with hands and arms and pull/push; climb or balance; and stoop, kneel, crouch, or crawl. The employee must lift and/or move up to 50 pounds without assistance. Specific vision abilities required by this position include close vision, distance vision, color vision, peripheral vision, and the ability to adjust focus.

Work Environment –

Includes both a typical office environment, with minimal exposure to excessive noise or adverse environmental issues, and a shop environment, with exposure to high noise levels from operating machines, physical hazards from moving equipment and machine parts, nuisance dust, and skin exposure to chemicals used to run/maintain machines.

PPE-

May be required to wear Personal Protective Equipment, including but not limited to safety glasses, safety shoes, bump-caps, gloves, hair nets, masks, & clean-room frocks while adhering to the prescribed safety procedures.

CelLink California Privacy Policy

The base pay is just one part of CelLink's total compensation package and is determined within a range. The pay range is designed to support your career progression as you learn, grow, and develop within your role. Your base pay range will depend on your skills, qualifications, experience, and location.

At CelLink, we believe that each employee should have the opportunity to become a CelLink shareholder through participation in CelLink's discretionary employee stock option plan. You'll also receive comprehensive medical and dental coverage and other great benefits.

Note: CelLink benefits, compensation, and employee stock programs are subject to eligibility requirements.

San Carlos, CA Base Pay

$20—$20 USD

We believe diversity and inclusion among our teammates are essential to our success. We celebrate diversity and are committed to creating an inclusive environment for all employees while building teams that represent a variety of backgrounds, perspectives, and skills. We are an equal opportunity employer. All employment is decided based on qualifications, merit, and business needs. CelLink participates in the E-Verify program in specific locations as required by law.

CelLink was founded in 2012 and entered volume production in 2018. CelLink provides electrical systems to the world's leading automotive OEMs & EV manufacturers, data center developers, and stationary power companies. The company has raised approximately $315M in funding through private investment and multiple grants from the US Department of Energy. CelLink’s investors include 3M, Atreides, BMW, BorgWarner, Bosch, D1 Capital, Fidelity, Fontinalis Partners, Ford, Franklin Templeton, Lear, Park West, SK Telecom, Standard Investments, T. Rowe Price, Tinicum, and Whale Rock.