graphic including the slogan "together we can make an impact."
STR Logo

STR

Mechanical Engineer

Posted 25 Minutes Ago
Be an Early Applicant
Easy Apply
In-Office
Arlington, VA
100K-135K Annually
Junior
Easy Apply
In-Office
Arlington, VA
100K-135K Annually
Junior
Design, model, fabricate, integrate, and test mechanical deployable payloads and vehicles for undersea sensors and unmanned platforms. Develop solutions for harsh maritime environments, create test plans and infrastructure, support laboratory and at-sea testing, coordinate vendors and fabricators, and communicate technical results through reports, presentations, and customer briefings.
The summary above was generated by AI

About the Team: 

The Sensors Division at STR excels at applied research and advanced technology development of impactful sensor system technology to address warfighter and intelligence needs. Our contributions are the culmination of modeling, development, integration, and test and evaluation of new capabilities, with validation testing at each step of development. 

The Ocean Technology and Acoustic Systems (OTAS) Group within the Sensors Division executes a broad portfolio of undersea technologies to impact sensing capabilities in contested areas.  The Group develops signature exploitations, implements advanced algorithms and processing, and creates new sensing and payload technologies for critical undersea missions. The technologies can be stand-alone or for platforms such as AUVs. 

STR is seeking a Mechanical Engineer with experience in the design, fabrication, integration, and testing of subsystems or payloads for unmanned platforms with emphasis on undersea sensors, payloads and vehicles. You will work with teams to realize challenging undersea applications requiring novel and complex engineering solutions. These solutions can only be accomplished by working across multidisciplinary teams to implement and demonstrate them in specific warfighter and intelligence applications. 

What you will do: 

  • Develop technical solutions for mechanical deployable payloads and vehicles, taking into account their complex interactions with harsh maritime environments.   This work requires teamwork in key areas of design and simulation, fabrication, and validation testing of mechanical payloads and systems in underwater environments
  • Collaborate in all stages of undersea systems testing, including developing comprehensive test plans, building test infrastructure, and supporting teams both in the laboratory and at-sea to mature key technology and prototypes
  • Provide regular communication with internal leadership and teammates while providing key input to reports and presentations for customer reviews and engagement

Who you are: 

  • Ability to obtain and maintain a Top Secret security clearance, for which U.S. citizenship is needed by the U.S. Government
  • BS with 2+ years relevant experience or a MS in Mechanical Engineering, Ocean Engineering, Physics, or related fields
  • Demonstrated background in the design, modeling, fabrication, integration, and validation of mechanical systems in support of first-concept undersea sensor payloads and vehicles
  • Familiarity with computer-aided CAD/CAM design tools such as COMSOL, ANSYS, SolidWorks and tools to design components and systems
  • Proficiency in thermal modeling, finite element analysis, computational fluid dynamics, or other multi-physics modeling and simulation required to quantify system performance in its operational environment
  • Experience combining multiple external vendors and fabricators with in-house fabrication and integration resources to arrive at complete systems that meet functional objectives
  • Experience 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
  • Adherence to best practices for development and testing using system engineering processes that allow for continuous risk-reduction and evolution of functionality
  • Ability to prepare and deliver briefings to customers, program managers, and senior management with messages appropriately tailored to the audience and purpose 

Even Better: 

  • Strong background in working with teams to field ocean-going unmanned systems and payloads. 

Pay Information 
Full-Time Salary Range: $100,000-135,000

The salary range listed is based on external market data. Offers are based on factors, such as but not limited to, the candidate’s experience, education, training, key skills/critical skills, security clearances, and prevailing market and business conditions. 

STR is a growing technology company with locations near Boston, MA, Arlington, VA, near Dayton, OH, Melbourne, FL, and Carlsbad, CA. We specialize in advanced research and development for defense, intelligence, and national security in: cyber; next generation sensors, radar, sonar, communications, and electronic warfare; and artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us.

STR is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. Our work is challenging, and we go home at night knowing that we pushed the envelope of technology and made the world safer.

STR is not just any company. Our people, culture, and attitude along with their unique set of skills, experiences, and perspectives put us on a trajectory to change the world. We can't do it alone, though - we need fellow trailblazers. If you are one, join our team and help to keep our society safe! Visit us at www.str.us for more info.


STR is an equal opportunity employer. We are fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws.

If you need a reasonable accommodation for any portion of the employment process, email us at [email protected] and provide your contact info.

Pursuant to applicable federal law and regulations, positions at STR require employees to obtain national security clearances and satisfy the requirements for compliance with export control and other applicable laws.

Similar Jobs at STR

Yesterday
Easy Apply
In-Office
Easy Apply
157K-220K Annually
Senior level
157K-220K Annually
Senior level
Machine Learning • Security • Software • Analytics • Defense
Lead development of advanced signal processing and ML algorithms for radar and RF sensing/EW systems, build models and simulations, lead small teams and proposals, and transition capabilities into prototype systems.
Top Skills: C/C++Electronic WarfareMachine LearningMatlabPythonRadarRfSignal Processing
2 Days Ago
Easy Apply
In-Office
Easy Apply
220K-280K Annually
Expert/Leader
220K-280K Annually
Expert/Leader
Machine Learning • Security • Software • Analytics • Defense
Lead and grow strategic accounts supporting national security customers. Serve as the primary liaison to senior government stakeholders, identify and mature opportunities, develop account plans, lead capture and proposal efforts, coordinate partner outreach, and provide customer insight to technical and program teams. The role requires deep familiarity with cybersecurity, intelligence, special operations, and technology development, along with strong communication, leadership, and relationship-building skills.
Top Skills: Artificial IntelligenceCommunicationsCybersecurityElectronic WarfareRadarSensorsSonar
6 Days Ago
Easy Apply
In-Office
Easy Apply
280K-340K Annually
Expert/Leader
280K-340K Annually
Expert/Leader
Machine Learning • Security • Software • Analytics • Defense
Leads and scales a classified test and evaluation organization, including recruiting and mentoring technical teams, managing multi-million-dollar P&L budgets, developing customer relationships, capturing government proposals, and delivering RDT&E solutions. Ensures compliance with FAR regulations and secure SAP/SAR and SCI workflows while overseeing test programs across Western Test Ranges. Requires extensive classified test experience, defense customer partnership, technical leadership, and active Top Secret clearance.
Top Skills: Far RegulationsSap/SarSci Environments

What you need to know about the Los Angeles Tech Scene

Los Angeles is a global leader in entertainment, so it’s no surprise that many of the biggest players in streaming, digital media and game development call the city home. But the city boasts plenty of non-entertainment innovation as well, with tech companies spanning verticals like AI, fintech, e-commerce and biotech. With major universities like Caltech, UCLA, USC and the nearby UC Irvine, the city has a steady supply of top-flight tech and engineering talent — not counting the graduates flocking to Los Angeles from across the world to enjoy its beaches, culture and year-round temperate climate.

Key Facts About Los Angeles Tech

  • Number of Tech Workers: 375,800; 5.5% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Snap, Netflix, SpaceX, Disney, Google
  • Key Industries: Artificial intelligence, adtech, media, software, game development
  • Funding Landscape: $11.6 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Strong Ventures, Fifth Wall, Upfront Ventures, Mucker Capital, Kittyhawk Ventures
  • Research Centers and Universities: California Institute of Technology, UCLA, University of Southern California, UC Irvine, Pepperdine, California Institute for Immunology and Immunotherapy, Center for Quantum Science and Engineering

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account