STR
Aerospace & DefenseDirect Greenhouse career site

Senior Mechanical Engineer

Pay
$134,000 – $168,000 per year
Location
Woburn, MA · On-site
Job type
Full-time
Level
Senior
Experience
5+ years
Education
Bachelor's degree
Listed
30 days ago

Skills & highlights for this role

  • TS security clearance
  • SolidWorks
  • ANSYS
  • MIL-STD-810 compliance
  • structural and thermal analysis

Also useful

  • vibration and shock analysis
  • integration and test

What you will do

  • Interface with the broader hardware team (e.g. electrical, RF) to ensure complete and proper implementation of systems requirements
  • Collaborate with cross-functional teams to understand system requirements and specifications as they relate to assigned tasking
  • Lead efforts to design and implement hardware designs and support assembly, integration, and testing. Activities may include:
  • Decomposition of needs and definition of requirements
  • Creation of detailed 3D CAD (SolidWorks and PDM) models and associated documentation appropriate for fabrication and assembly (e.g. detailed drawings, bill-of-materials)
  • Conducting analyses (Finite element and "back-of-the-envelope") for structural, shock, vibration, and thermal mitigation
  • Identification/specification of components and vendors
  • Near term tasking may be related to RF systems for airborne applications, but you may be tasked on other applications as needed

Who you are

  • This position requires the ability to obtain a Top Secret (TS) security clearance, for which U.S. citizenship is needed by U.S. Government
  • Experience using SolidWorks to create 3D designs and associated documentation for fabrication and assembly
  • Expertise with structural, vibration, shock, and thermal analyses using ANSYS
  • Experience with designing to meet specifications, (e.g. compliance with MIL-STD-810)
  • Experience with integration and test activities
  • Demonstrated desire to successfully pursue new challenges, improve and broaden technical skills, seek greater responsibilities, and increase individual value to the organization
  • Capable of effectively working in a team environment, often under tight deadlines
  • Experience in providing information for technical reviews (SRRs, PDRs, CDRs, TIMS).
  • Background should include a Bachelor's degree and at least 5 years of applicable experience; Master's degree and at least 3 years applicable experience, or PhD. Equivalent experience will be considered

Nice to have

  • Active Secret or Top-Secret security clearance

Pay Information

Full-Time Salary Range: $134,000 - $168,000

The salary range listed is based on external market data. Final 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, Carlsbad, CA, Atlanta, GA, and Denver, CO. 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!

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.

About STR

STR is focused on delivering National Defense capabilities by driving mission-focused strategies to develop advanced technology systems enabling enduring products and solutions focused on achieving the customer vision. Our programs deliver sustainable, reliable, and cost-efficient capabilities focused on end-customer needs that function in operationally relevant environments and timeframes. We consider the entire lifecycle of the solution, from conceptualization and architecting, through development to deployment, while leveraging novel technologies to deliver first-of-a-kind systems.

STR is seeking a Senior Mechanical Engineer to support the design, development, and implementation of electro-mechanical hardware for applications such as advanced multi-function Radar systems and unmanned systems.

In this role, you will be expected to understand and implement requirements as they apply to electro-mechanical hardware. You will be involved with ensuring hardware moves through the entire life-cycle, from conceptualization, through design and fabrication, to integration and test, and ultimately delivery.

This will require application of 3D CAD design, generation of detailed documentation, conducting supporting tests and analyses such as structural, vibration, shock, and thermal, identification/specification of components and vendors, and assembly of hardware (test systems, prototypes, and deliverable units).

Since the systems developed are deployed in operationally relevant environments, the hardware you develop needs to meet standards of quality, maintainability, and reuse.

The successful candidate will have demonstrated skills and expertise in areas such as: design, analysis, prototyping, manufacturing, and test & evaluation. This position requires skills in working with multi-disciplinary teams, design, development, and test activities, as well as proficiency in relevant technologies. Strong interpersonal, communication, and technical skills are required. Applicants are expected to be self-motivated, detail oriented and have ability to effectively communicate.

Read the original posting

From STR's careers page, first listed on Rolev.ai on October 10, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

Rolev.ai is a job search and application tool for US job seekers. For this Senior Mechanical Engineer role at STR, it shows how your resume fits, tailors your resume to the posting, and prepares the application for you to review.

  • See how you fit

    Openings from employer career sites are ranked against your whole resume—and searchable inside Claude, ChatGPT, and Cursor via Rolev.ai MCP.

  • Tailor without inventing

    Every change to your resume is checked against your original. New experience goes in only with your yes—zero fabricated claims.

  • Draft the full kit

    Tailored and Full Match resumes, role-specific cover letters, and answers to employer screening questions are prepared in seconds.

  • 1-Click Extension Autofill

    The Chrome extension fills the employer's Greenhouse, Workday, Lever, or Ashby form in 1 click. You review it and press Submit.

Common questions

What is the salary for the Senior Mechanical Engineer role at STR?

The Senior Mechanical Engineer posting at STR states compensation of $134,000 – $168,000 per year. It is listed as a full-time position. Final pay may depend on location, experience, and interview evaluation on STR's official career site.

Where is the Senior Mechanical Engineer job at STR located?

This Senior Mechanical Engineer position at STR is located in Woburn, MA (On-site). Always check STR's application page for specific state eligibility or relocation policies.

What qualifications are required for Senior Mechanical Engineer at STR?

For the Senior Mechanical Engineer role, STR highlights 5+ years of relevant experience; a bachelor's degree; experience with SolidWorks, ANSYS, MIL-STD-810 compliance, structural and thermal analysis. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Senior Mechanical Engineer position at STR?

This listing links directly to STR's Greenhouse application page. You can apply directly on STR's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Greenhouse application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.