Mechanical Engineering Intern - Recreational

Arc is on a mission to electrify the marine industry. The role is a summer internship as a Mechanical Engineer from June 14th to August 20th 2027, working from the headquarters in Torrance, CA. The company is rethinking powertrains, software, and vessel designs from first principles and is extending its platform to commercial applications, starting with tugs, ferries, and defense.

Responsibilities

Designing and releasing hardware, with mentorship from a full-time engineer, in areas such as composite structures, interiors and mechanisms, marine systems, test fixtures, or tooling; Owning a defined project from requirements through design, prototype, and test over the course of the internship; Building and testing prototypes in the shop and on the water, and helping root-cause failures; Creating CAD models, drawings, and supporting analysis for parts and assemblies; Presenting work and results to the engineering team

Requirements

Currently a junior or senior pursuing a Bachelor's degree in Mechanical Engineering or a related engineering field; Hands-on engineering experience through a prior internship, project team, research, or personal projects; Proficiency in a 3D CAD tool (NX, CATIA, or SolidWorks); Solid grasp of mechanical engineering fundamentals such as statics, mechanics of materials, and fluids; Willingness to get hands-on with fabrication, assembly, and testing; Ability to explain and defend your design decisions; Clear written and verbal communication; Eagerness to learn and adapt in a dynamic setting

Nice to have

Leadership or major design ownership on a student project team (Formula SAE, Baja, solar car, electric boat, rocketry, or similar); Experience with composites, ideally fiberglass or carbon layups; Machining, welding, 3D printing, or other fabrication skills; Experience with FEA or other analysis tools; Exposure to design for manufacturing or tooling design; Experience with NX or a PLM system such as Teamcenter; Comfortable pushing a fast but sustainable pace; Enthusiasm for boating and the water

Benefits

Boat days; Retirement savings with Traditional and Roth 401(k) access; Safety support including reimbursement for PPE, ergonomic equipment, and anything that ensures crew safety; Relocation Assistance; Mentorship Opportunities; Office perks including daily lunches, snacks, and good coffee while onsite