Manufacturing Engineering Intern at Stored Energy Systems – Longmont, Colorado

Who We Are

Stored Energy Systems (SENS) is an award-winning manufacturer of premium quality power conversion products located in Longmont, CO. In business for over 50 years, SENS is the market leader with a proven track record of providing highly reliable battery chargers, DC power systems, and related products to industrial markets. For more information on our company please see our web site at www.sens-usa.com.

Summary

We are seeking a hands-on Manufacturing Engineering Intern for a 10-week summer internship supporting critical continuous improvement and new product introduction efforts. This role offers the opportunity to co-lead a Kaizen event on a high-volume production line and play a key role in launching a new manufacturing line. This internship is ideal for someone eager to get out on the production floor and provides real-world experience in Lean principles, process optimization, and cross-functional problem solving beyond typical intern-level exposure.

Responsibilities

• Implement Lean initiatives to improve operational efficiency, 5S, reduce waste, and enhance product quality.
• Conduct value stream mapping, root cause analysis, and co-lead a Kaizen workshop to identify and implement process improvements on one of our high volume production lines.
• Perform time studies, workflow analysis, and capacity assessments.
• Assist in creating or updating standard operating procedures (SOPs) and work instructions.
• Support manufacturing engineers with process development, optimization, and documentation.
• Work with cross functional teams to support new product introduction (NPI) activities.
• Participate in the design, testing, and implementation of fixtures, tools, and process aids.
• Support efforts to improve safety, quality, delivery, and cost through engineering solutions.

Required Qualifications

• Currently pursuing a B.S. in Manufacturing Engineering, Industrial Engineering, or a related engineering field.
• College student entering their Junior or Senior year in the fall.
• Understanding of Lean and Six Sigma principals (5S, line balancing, Kaizen, DMAIC, value stream mapping, etc.)
• Basic understanding of manufacturing processes (e.g., machining, assembly, automation, injection molding, stamping, etc.).
• Understanding of root cause analysis methods (5 Whys, Fishbone, etc.).
• Capable of data analysis, basic statistics, and Excel.
• Strong problem-solving mindset.
• Ability to communicate clearly with cross functional teams.
• Willingness to work on the production floor and learn hands-on.

Preferred Qualifications

• Prior co-op/internship in manufacturing.
• Prior use of Lean, Six Sigma, or process improvement tools in a production environment.

Location: This position is located in Longmont, CO.

Base Compensation: $20 - $23 is the hourly wage this role, depending on the candidate’s overall qualifications and experience.

Closing Date: We will be accepting applications through April 17th. While we expect to keep the position open through this date, the posting may be extended or closed early based on applicant volume and hiring needs.

We offer an exciting and competitive total compensation package designed to inspire! This includes generous paid time off, holidays, as well as comprehensive benefits including medical, dental, vision, short-term disability, life insurance, and an outstanding 401k matching program where employees are instantly vested.

At SENS, our culture is rooted in a set of core values that reflect who we are and how we work. In a recent 2025 poll, our employees identified the values that best define us: “Innovative”, “Respectful”, “Inviting”, “Flexible”, “Collaborative”, and “Growth Driven”. Our team describes us as a dynamic, forward-thinking company where everyone has the opportunity to thrive.

At SENS, we pride ourselves on being an equal opportunity employer, fully dedicated to fostering inclusion and diversity. We welcome all applicants, regardless of race, color, religion, sex, sexual orientation, gender identity, genetic information, national origin, age, disability, veteran status, or any other legally protected characteristic.

We hope you're interested in making a difference with us. Even if you don't feel that you meet every qualification listed in this job description, we still encourage you to apply.