Product Design Intern - Summer 2026

Company Overview

Specified Technologies Inc. (STI) is the industry technology leader in firestopping products. Established in 1990 and headquartered in Somerville, New Jersey, STI has grown to serve multiple markets and geographies. With approximately 230 employees, the company is committed to innovation, safety, and performance in passive fire protection.

Role Description

We're seeking a Product Design Intern who will support the Product Development and Industrial Engineering team in designing and prototyping new products. This role involves assisting with CAD modeling, prototype assembly, and design validation activities. The intern will gain exposure to mechanical design principles, manufacturing processes, and product lifecycle development.

This position is based at our Corporate Headquarters in Somerville, NJ.

What You'll Do:

• Assist in creating and updating 3D models and technical drawings using CAD tools (SolidWorks or similar).
• Support prototype fabrication and assembly, ensuring designs meet functional and quality requirements.
• Participate in design reviews and provide input on manufacturability and cost optimization.
• Help document design changes and maintain engineering records.
• Collaborate with cross-functional teams to address design challenges and improve product performance.
• Assist in testing prototypes and analyzing results to validate design specifications.
• Contribute to continuous improvement initiatives related to product design and development. 

Education

• Currently pursuing a Bachelor’s degree in Mechanical Engineering or a related field.
• Relevant coursework in mechanical design, materials, or manufacturing processes.

Experience

• Familiarity with CAD tools such as SolidWorks or AutoCAD.
• Interest in prototyping, testing, and hands‑on engineering work.
• Previous internship or project experience in product design or manufacturing (preferred).
• Basic understanding of GD&T and tolerance analysis (preferred).
• Knowledge of safety and compliance standards is a plus.

Skills

• Strong analytical and problem‑solving abilities.
• Effective communication and teamwork skills.
• Ability to learn quickly and contribute in a collaborative engineering environment.

Working Conditions

• May occasionally visit other company locations or suppliers with the supervision of full time engineers.
• Must be comfortable working in a fast paced manufacturing environment.

This position is not benefit‑eligible. The benefits listed below apply only to eligible employees.

Why You'll Love Working Here!

At STI Firestop, you'll be part of a team that values innovation, integrity, and individual growth. We’re committed to supporting our employees with meaningful benefits, including:

• Paid Time Off – Company Paid Holidays, Vacation and Sick time to use when it works best for you.
• Medical, Dental & Vision Insurance – Comprehensive coverage to keep you and your family healthy.
• 401(k) Retirement Plan – Build your financial future with our 401(k) program, including employer contributions.

We're an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.

Please note: This position is not eligible for visa sponsorship or H-1B transfer. Candidates must be legally authorized to work in the United States at the time of application and not require sponsorship now or in the future.

Salary : $20