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Where maritime expertise and cutting-edge technology converge beneath the surface.
MISSION-DRIVEN MINDS, MARITIME EXPERTISE, & CUTTING-EDGE TECHNOLOGY

At ThayerMahan, we don’t just offer jobs—we support a mission. Join a team where your efforts fuel national security and ocean intelligence. We are shaping the future of maritime awareness and seek those ready to push boundaries, challenge convention, and innovate beneath the surface. 

 

Our crew is composed of engineers, scientists, and operational experts who thrive on solving complex challenges from surface to seabed. Whether you’re advancing acoustic science, deploying autonomous maritime systems, operating complex underwater equipment, or interpreting oceanographic data, your work here has real-world impact.

Employees
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KIM | Principal Software Engineer

***Equal employment opportunities are available to all applicants and teammates without regard to race, color, religion, sex, age, physical and mental disability, marital status, sexual orientation, military and veteran status, and any other characteristic protected by applicable law. 

ACTIVELY SEEKING

INDIVIDUALS WITH EXPERTISE IN:

  • ACOUSTICS & PHYSICS
  • ELECTRICAL & MECHANCIAL ENGINEERING
  • SOFTWARE ENGINEERING
  • MATHEMATICS
  • AUTONOMOUS MARITIME SYSTEMS (UUVs, USVs)
  • NAVAL & COAST GUARD OPERATIONS
  • U.S. NAVY & MARINE CORPS EXPLOSIVE ODRINANCE DISPOSAL
  • MARITIME & VESSEL OPERATIONS
  • MARKETING & SALES

Whether you’re a seasoned naval officer, a data scientist, driven maritime talent, or an engineer with a passion for the ocean, you’ll find purpose and impact here. At ThayerMahan, your work doesn’t just open doors-it opens oceans of opportunity. 

 

View Open Positions
INTERNSHIPS AT THAYERMAHAN

Launch Your Career Below the Surface

CAVAN | Marketing Summer Intern 2026

Interns at ThayerMahan do more than learn, they get a hands-on experience with missions that matter. As a pioneer in maritime intelligence, we operate at the intersection of advanced technology, national security, and ocean innovation. Our internship program is designed for those ready to dive deep, contribute meaningfully, and learn alongside a team that’s shaping the future of the maritime domain. 

 

We offer internship opportunities across a range of disciplines, including: 

  • Artificial Intelligence & Data Science
  • Engineering (Electrical, Mechanical, Systems)
  • Autonomous Maritime Systems
  • Marketing & Communications
  • Legal & Compliance
  • Human Resources & Business Operations

You won’t just observe – you’ll contribute. You’ll gain hands-on experience, mentorship from seasoned professionals, and insight into how cutting-edge ocean technologies are developed, deployed, and sustained. 

 

At ThayerMahan, your internship doesn’t just build a résumé—it builds readiness. 


Ready to make waves?  

APPLY FOR AN INTERNSHIP

Don't Just Take Our Word For It...

Vittorio

Senior Data Scientist

“I get to be hands on with the hardware and I get to see the software I develop get put onto the hardware before going out to sea – it is gratifying to see.”

Niko

Software Engineer II
“There are some days where I just don’t want to stop working on my task.”

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OUR Human Resources

Mike Mueller

Senior Director of Human Resources

We combine mission-driven work with real-world impact. Our teams bring together engineering, science, field operations, and analytics to solve complex ocean challenges – often deploying systems in active offshore environments.

Our culture is collaborative, hands-on, and mission-focused. We value curiosity, accountability, and teamwork. Employees work closely across disciplines from engineers to offshore operators in order to deliver solutions that perform in real conditions.

Our offices are located in Groton, CT; Washington, DC; Virginia Beach, VA; and Lowell, MA, with operations extending globally based on customer projects and deployments.

No two days are the same. Work may include system development, testing, data analysis, customer collaboration, or preparing for deployments. Many roles involve cross-functional teamwork.

Yes. Employees gain hands-on experience with advanced systems, collaborate across disciplines, and develop skills through real-world deployments and innovation.

We look for individuals who are:

  • Problem-solvers who thrive in complex environments
  • Collaborative and team-oriented
  • Adaptable and comfortable in dynamic settings
  • Passionate about ocean technology and mission-driven work

The process typically includes:

  1. Initial screening
  2. Technical or role-specific interviews
  3. Team discussions
    (We focus on both technical expertise and team fit.)