Corridian

Autonomous undersea logistics AUVs for defense

Mechanical Engineer

Design EngineeringUpdated on Nov 10

Full-timeBoston, MA, USANo salary listedIn-person

About the Job

Requirements

A degree in Mechanical Engineering or a related field is required.
At least 5 years of experience as a Mechanical Engineer or in a related field is required.
Prior experience designing and building mechanical systems through lab work, industry work, or personal projects is required.
Proficiency with computer-aided design (CAD) tools is required; SolidWorks is preferred.
Experience with structural analysis using finite element analysis (FEA) and materials selection is required.
Familiarity with machining, rapid prototyping, and fabrication methods is required.
U.S. citizenship is required, and the candidate must be eligible for a Department of Defense security clearance.

Responsibilities

Design, prototype, and iterate on mechanical systems—including structures, housings, actuators, propulsion, and sealing systems—for subsea environments.
Collaborate with a small, cross-functional team of electrical, software, and systems engineers.
Take concepts from computer-aided design through prototyping, testing, and at-sea deployment.
Develop waterproofing, sealing, and structural solutions for high-pressure and corrosive environments.
Own work end-to-end by designing, fabricating, testing, deploying, and debugging mechanical systems.

Desired Qualifications

Experience designing for maritime, automotive, subsea, aerospace, defense, or other ruggedized platforms.
Knowledge of sealing, waterproofing, corrosion resistance, and subsea housings.
Experience with fluid dynamics, propulsion, or hydrodynamic modeling.
Hands-on fabrication experience with computer numerical control (CNC), composites, welding, or additive manufacturing.
An active Department of Defense Secret clearance.

The Role

This isn’t just engineering - it’s pioneering. We’re looking for a Mechanical Engineer who loves building and wants to put real hardware in the ocean. If you get excited about designing systems that can survive extreme subsea environments, building prototypes, running sea trials, and solving new problems, this is for you.

What You’ll Do

• Design, prototype, and iterate on mechanical systems (structures, housings, actuators, propulsion, sealing systems) that perform in subsea environments.

• Collaborate tightly with a small, cross-functional team (electrical, software, and systems engineers)

• Take concepts from CAD to prototype, testing, to at-sea deployment

• Develop waterproofing, sealing, and structural solutions for high-pressure and corrosive environments

• Own your work end-to-end: design, fabricate, test, deploy, debug, repeat

• Push the limits of what’s possible in subsea mechanical engineering

What You Bring

• Degree in Mechanical Engineering or a related field

• 5+ years in Mechanical Engineer or related field

• Prior experience in designing and building mechanical systems (lab, industry, or personal projects)

• Proficiency with CAD tools (SolidWorks preferred)

• Experience with structural analysis (FEA) and materials selection

• Familiarity with machining, rapid prototyping, and fabrication methods

• Comfortable working with a small team and wearing many hats

• Strong problem-solving drive: when something breaks, you dive in and fix it

• U.S. citizen; eligible for DoD security clearance

Nice To Haves

• Experience designing for maritime, automotive, subsea, aerospace, defense, or other ruggedized platforms

• Knowledge of sealing, waterproofing, corrosion resistance, and subsea housings

• Experience with fluid dynamics, propulsion, or hydrodynamic modeling

• Hands-on fabrication experience (CNC, composites, welding, additive manufacturing)

• Active DoD Secret clearance

About the Company

Corridian

Autonomous undersea logistics AUVs for defense

Corridian builds ultra-large autonomous underwater vehicles (AUVs) that act as a stealth logistics and infrastructure layer under the ocean for US and allied navies, carrying ISO-standard containers over long distances without crews. The vehicles use a modular, open-systems design so operators can swap payloads and link with other mission-autonomy systems for tasks like payload delivery, ISR, and contested logistics. They manufacture the vehicles in-house and follow an aerospace-style production model with a separate, commercial supply chain to avoid competing for traditional submarine yards and suppliers. The goal is to provide scalable, stealth undersea logistics and ISR that boost fleet tempo and resilience in contested waters.

Company size: 1-10
Company stage: Seed
Total funding: $38M
Headquarters: Boston, MA
Founded: 2025

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