Full-Time

Principal Maritime Mechanical Engineer

Sensors Division

Posted on 8/12/2025

STR

STR

501-1,000 employees

AI-driven defense and national security platforms

No salary listed

No H1B Sponsorship

Arlington, VA, USA

In Person

US Top Secret Clearance, US Citizenship Required

Category
Mechanical Engineering (1)
Required Skills
CAD
SolidWorks
Requirements
  • This position requires the ability to obtain and maintain a Top Secret security clearance, for which U.S. citizenship is needed by the U.S. Government
  • BS, MS, or PhD with 8+ years of relevant experience in Mechanical Engineering, Ocean Engineering, Physics, or related fields
  • Demonstrated proficiency in the design, modeling, fabrication, integration, and validation of mechanical systems in support of first-concept undersea sensor payloads and vehicles
  • Proficiency with computer-aided CAD/CAM design tools such as COMSOL, ANSYS, SolidWorks and tools to design components and systems
  • Expertise in thermal modeling, finite element analysis, computational fluid dynamics, and other multi-physics modeling and simulation required to quantify system performance in its operational environment. This expertise spans both steady-state equilibrium calculations as well as transients
  • Proficient with combining multiple external vendors and fabricators with in-house fabrication and integration resources to arrive at complete systems that meet functional objectives
  • Demonstrated expertise with materials and designs to survive harsh conditions including temperature and overpressure
  • Ability to design and implement testing methods and apparatus to quantify mechanical functionality, performance, and readiness against metrics
  • Ability in specifying required laboratory spaces, equipment, and processes to accomplish system fabrication and integration
  • Adherence to best practices for development and testing using system engineering processes that allow for continuous risk-reduction and evolution of functionality
  • Track record leading multidisciplinary teams for complex systems requiring coordination with dependent subsystem teams
  • Ability to prepare and deliver briefings to customers, program managers, and senior management with messages appropriately tailored to the audience and purpose
Responsibilities
  • Define and lead research and validation of mechanical deployable payloads and vehicles, taking into account their complex interactions with harsh maritime environments. This work will require leadership in design and simulation, fabrication, and validation testing of mechanical payloads and systems in underwater environments
  • Oversee all stages of undersea systems testing, including developing comprehensive test plans, building test infrastructure, and leading teams to support both laboratory and at-sea testing
  • Manage all stages of undersea systems development spanning computer design, laboratory bench testing, and at-sea validation to ensure solutions remain on track with objectives
  • Lead multidisciplinary teams involving mentoring of individuals, coordination and communication across technical teams, and reporting to internal and external stakeholders
  • Engage customer and develop compelling, innovative technical solutions to address maritime warfighter needs
Desired Qualifications
  • Breadth of experience testing systems in challenging, limited-access environment

STR uses AI to help national security and defense clients make faster, data-driven decisions. Its flagship STR infokit platform combines data science, AI algorithms, data conditioning, and DevOps to deliver real-time decision support for use in command and control, collaborative autonomy, and object recognition and tracking. Revenue comes from government and defense contracts for advanced AI platforms that blend artificial and human intelligence to resist manipulation. The company differentiates by emphasizing autonomy, creativity, and diversity to foster robust decision-making under high-stakes conditions, aiming to provide clients with a reliable edge in security challenges.

Company Size

501-1,000

Company Stage

Grant

Total Funding

$54.9M

Headquarters

Woburn, Massachusetts

Founded

2010

Simplify Jobs

Simplify's Take

What believers are saying

  • DARPA AIR contract advances STR's swarming uncrewed aircraft AI capabilities and market positioning.
  • Government demand for cybersecurity and distributed sensing solutions expands STR's addressable market.
  • STR's isolated network capability differentiates it in classified government environments with connectivity constraints.

What critics are saying

  • Palantir's AIP platform displaces STR's infokit in DoD decision support with faster deployment.
  • DoD slashed DARPA AI funding 25% in FY2027 NDAA, stalling STR's flagship AIR contract.
  • Anduril's Lattice platform captured $1.5B DoD contracts, outpacing STR in autonomous swarming technology.

What makes STR unique

  • STR's analytics platform delivers real-time sensemaking on isolated networks without external connectivity.
  • STR combines human creativity with AI algorithms for resilient decision-making resistant to manipulation.
  • STR specializes in collaborative autonomy and object recognition for command-and-control applications.

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Benefits

Flexible Work Hours

Company News

Military & Aerospace Electronics
Sep 8th, 2025
STR moves forward on DARPA AIR job to develop artificial intelligence (AI) for swarming uncrewed aircraft

STR moves forward on DARPA AIR job to develop artificial intelligence (AI) for swarming uncrewed aircraft.

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