Mechanical Engineering Intern

HiArc; Merrimack (NH); On-site; USD 25,000 - 30,000; Full time

Benefits offered by this job

9/80 schedule

401(k) program

Medical, dental, vision coverage

Life Insurance

Paid time off (PTO)

Parental Leave

Employee Referral Program

Voluntary Benefits

Tricare available

Job summary

HiArc is seeking a Mechanical Engineering Intern to support the design, development, and testing of mechanical components across active product programs. You will work with senior engineers to prototype concepts, troubleshoot issues, and contribute to improving product performance.

The role offers hands-on experience in the full product lifecycle, with exposure to design reviews, lab testing, and cross-functional collaboration in a fast-paced environment.

Qualifications

• Enrolled in BS/MS Mechanical Engineering, at least 1 year completed.
• Strong communication and teamwork skills.
• Proficient with SolidWorks or similar CAD and MS Office.

Responsibilities

• Assist with designing, modifying and identifying mechanical components and assemblies.
• Perform analyses and experiments to evaluate products, designs or processes using mathematical techniques and CAD tools.
• Prepare engineering specifications and procedures.
• Produce 3D CAD part files and assemblies and associated drawings.
• Develop engineering prototypes and test plans.
• Document results and support design decisions.

Skills

Communication

Teamwork

Problem solving

Attention to detail

Education

Currently enrolled in BS/MS Mechanical Engineering, 1+ year completed

Tools

SolidWorks

MS Office

Job description

Company Information

At HiArc, we believe clients don’t need another vendor; they need a strategic partner who gets it. One who listens harder, thinks deeper, and builds smarter—around their needs, products, and goals. HiArc engineers and manufactures complex medical technologies with one goal in mind: creating the perfect fit for our clients. No off-the-shelf thinking. No compromises. Just a tailored, high-performance solution our clients need, the way they need it. That’s why HiArc is the most client-centered partner in the market. We fuse design, engineering, and manufacturing into a seamless, collaborative process—crafted entirely around our clients. We operate as an extension of our clients' teams, de-risking their processes and accelerating their path to market. And the result is a solution you won’t find anywhere else.

Company Information

At HiArc, we believe clients don’t need another vendor; they need a strategic partner who gets it. One who listens harder, thinks deeper, and builds smarter—around their needs, products, and goals. HiArc engineers and manufactures complex medical technologies with one goal in mind: creating the perfect fit for our clients. No off‑the‑shelf thinking. No compromises. Just a tailored, high-performance solution our clients need, the way they need it. That’s why HiArc is the most client-centered partner in the market. We fuse design, engineering, and manufacturing into a seamless, collaborative process—crafted entirely around our clients. We operate as an extension of our clients' teams, de-risking their processes and accelerating their path to market. And the result is a solution you won’t find anywhere else.

Join our team! We hire experts in hardware and software design, robotics, optics, fluidics, chemistry integration, motion and thermal control, risk management, supply chain management, performance testing, advanced manufacturing techniques, finance, human resources, sales, and marketing.

For more information, please visit HiArc.

Overview

The Mechanical Engineering Intern will support the design, development, and testing of mechanical components and systems across active product development programs. Responsibilities may include assisting with CAD modeling and drawing updates, performing engineering analyses, building and executing test plans, collecting and interpreting data, and documenting results to support design decisions. The intern will collaborate closely with senior engineers, cross‑functional partners, and technicians to prototype concepts, troubleshoot issues, and improve product performance. This role provides hands‑on experience with real engineering challenges, exposure to the full product development lifecycle, and the opportunity to contribute meaningful work in a fast‑paced, team‑oriented environment.

Responsibilities

• Assist with designing, modifying and/or identify commercial items, such as robotics, mechanisms, mechanical components, fluidics components and/or mechanical subassemblies, etc.
• Assist with perform analyses and experiments to evaluate products, designs or processes. Utilizing mathematical techniques, specialized computer programs, FEA, Tolerance Stack-up, etc.
• Assist with preparing engineering specifications and procedures.
• Assist with producing 3D CAD part files and assemblies and associated drawings.
• Assist with producing and evaluate engineering prototypes.
• Assist with preparing technical documentation relating to proposals, reports, specifications, etc.
• Assist with performing lab/field testing for new or existing applications.
• Perform other related duties as assigned.

Required Qualifications

• Education: Current enrollment in a Bachelor of Science or Master's degree program in Mechanical Engineering or equivalent engineering major. Must have completed at least 1 yr of the program.

Desired Qualifications

• Strong communication and teamwork skills including written, verbal, interpersonal and presentation skills.
• Strong problem solving and debugging skills.
• Proficient using Microsoft Office suite and 3D CAD (SolidWorks - preferred) software
• Strong attention to detail and organizational skills
• Working understanding of designing for multiple manufacturing processes (machining, sheet metal, welding, casting, thermo forming, injection molding, etc.)
• Practical working experience with Geometric Dimensioning & Tolerancing (GD&T) and tolerance stack analysis.

Here Are Some Of The Great Benefits We Offer

• Most locations offer a 9/80 schedule, providing every other Friday off
• Competitive compensation & 401(k) program to plan for your future
• Robust medical, dental, vision, & disability coverage with qualified wellness discounts
• Basic Life Insurance and Additional Life & AD&D Insurances are available
• Flexible Vacation & PTO
• Paid Parental Leave
• Generous Employee Referral Program
• Voluntary Benefits Available: Longer Term Care, Legal, Identity Theft, Pet Insurance, and more
• Voluntary Tricare Supplement available for military retirees

This job description does not list all the duties of the job. You may be asked by your supervisors or managers to perform other duties. The employer has the right to revise this job description at any time. The job description is not an employment contract. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of this position. HiArc, a Twenty-Six Defense company, is an equal opportunity employer as to all protected groups, including protected veterans and individuals with disabilities.