2026 Summer Internship Program (Mechanical & Industrial Engineering)

2026 Summer Internship Program (Mechanical & Industrial Engineering)

Company:  Allfast Fastening Systems LLC

Primary Location:  15200 Don Julian Road, City of Industry, CA 91745 USA

Workplace Type: On-site

Employment Type: Hourly | Intern

Function:  Engineering

Equal Opportunity Employer Minorities/Women/Veterans/Disabled

Main Duties & Responsibilities

PennAero Summer Internship Program
 
We are currently seeking high energy and motivated students to join our team as a 2026 Intern at PennAero. We pride ourselves on our high-performance environment made up of results-oriented team members. PennAero is a dynamic company that offers opportunities for continued growth within our business.  As an intern at PennAero, you’ll gain hands-on experience, learn from experts, and collaborate with teams that do truly amazing things.
An internship with PennAero allows students to be a part of dynamic and innovative projects, while providing ample mentoring and professional development opportunities. An internship with PennAero will provide you with invaluable experience that you could utilize in any role, and it is PennAero’s goal to evaluate its interns for potential entry-level openings.

These internship opportunities will be located at our Allfast Fastening Systems facility in City of Industry, CA.

We are looking for interns in the following areas:

Mechanical Engineering
Project Scope: Allmax Joint Allowables and New Product Development
Industrial Engineering
Project Scope: Purchased Tooling Inspection
Mechanical Engineering
Project Scope: Tooling Planning/Forecasting Process



Internship Course:
Over the course of our 8 - 10- week internship experience you will have the opportunity to:
Work directly with a mentor in your field of study while finding solutions to real world problems.
Experience our products up close by touring our state-of-the-art manufacturing facilities.
Interact directly with our company leaders to discuss strategy and the future of PennAero
Build a lasting professional network through social events and engaging activities.
Gain the skills and knowledge to become a future leader in the aerospace industry.

Intern Salary Ranges
Bachelor's: $22.00 to $27.00 per hour
Master's: $32.00 to $34.00 per hour

Relocation:
Some of these positions offer a housing stipend based on candidate eligibility

This role is required to be on-site 5 days at the City of Industry, CA location.

Qualifications

Education and Experience Required:
 
Current 3.0 GPA and above
Must be involved in at least 1 extracurricular activity.
Prior work experience.
Must be currently enrolled in a bachelor’s or master’s degree program 
Employees must be legally authorized to work in the United States. 
Verification of employment eligibility will be required at the time of hire. 
This position entails access to export-controlled items and employment offers are conditioned upon an applicant’s ability to lawfully obtain access to such items
Visa sponsorship is not available for this position.

Compensation

In compliance with all states and cities requiring transparency of pay, the expected pay range for this position is $22.00 - $27.00 per hour for candidates in a Bachelors degree program and $32.00 to $34.00 per hour for candidates in a Masters degree program.

Compensation can vary depending on several factors, including a candidate's qualifications, skills, experience, competencies, and geographic location.  Some roles may qualify for extra incentives like equity, commissions, or other variable performance-related bonuses.  Further details will be provided by our recruiting team during the interview process.

Benefits

Benefit offerings include Medical Insurance and Prescription Drugs, Dental Insurance, Vision Insurance, Flexible Spending Accounts, Life Insurance, Short-Term Disability, Long-Term Disability Insurance (for eligible employees), Employee Assistance Plan (EAP), Paid Time Off (may include vacation and sick time), Retirement Program, and Other Voluntary Benefits.

Click here for more information: www.trimasbenefits.com