{"id":1476761,"url":"https://alion.io/job/systems-and-technology-research-senior-mechanical-engineer-2","title":"Senior Mechanical Engineer","company":{"id":5401,"name":"Systems and Technology Research","domain":"str.us","url":"https://alion.io/company/str","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":88,"open_postings":30,"ghost_share":0,"stale_share":0.467,"repost_share":0,"time_to_fill_p50_days":54,"computed_at":"2026-10-24T06:02:35Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Woburn, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":134000,"max":168000,"currency":"USD","period":"year","gross":null,"usd_annual":168000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ANSYS","optional":false},{"name":"MIL-STD-810","optional":false},{"name":"SolidWorks","optional":false}],"status":"live","first_seen_at":"2026-09-29T18:24:14Z","employer_posted_date":"2026-10-01","last_verified_at":"2026-10-24T13:34:07Z","board_verified":true,"closed_at":null,"days_open":24,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":24},"description":"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.\nSTR 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.\nIn 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.\nThe 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. \nWhat you will do:\nInterface with the broader hardware team (e.g. electrical, RF) to ensure complete and proper implementation of systems requirements\nCollaborate with cross-functional teams to understand system requirements and specifications as they relate to assigned tasking\nLead efforts to design and implement hardware designs and support assembly, integration, and testing. Activities may include:Decomposition of needs and definition of requirements\nCreation of detailed 3D CAD (SolidWorks and PDM) models and associated documentation appropriate for fabrication and assembly (e.g. detailed drawings, bill-of-materials)\nConducting analyses (Finite element and “back-of-the-envelope”) for structural, shock, vibration, and thermal mitigation\nIdentification/specification of components and vendors\n\nNear term tasking may be related to RF systems for airborne applications, but you may be tasked on other applications as needed\nWho you are:\nThis position requires the ability to obtain a Top Secret (TS) security clearance, for which U.S. citizenship is needed by U.S. Government\nExperience using SolidWorks to create 3D designs and associated documentation for fabrication and assembly\nExpertise with structural, vibration, shock, and thermal analyses using ANSYS\nExperience with designing to meet specifications, (e.g. compliance with MIL-STD-810)\nExperience with integration and test activities\nDemonstrated desire to successfully pursue new challenges, improve and broaden technical skills, seek greater responsibilities, and increase individual value to the organization\nCapable of effectively working in a team environment, often under tight deadlines\nExperience in providing information for technical reviews (SRRs, PDRs, CDRs, TIMS).\nBackground 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\nNice to have:\nActive Secret or Top-Secret security clearance\nPay Information\nFull-Time Salary Range: $134,000 - $168,000\nThe 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.\nSTR 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.\nSTR 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.\nSTR 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.\n\nSTR 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.\nIf you need a reasonable accommodation for any portion of the employment process, email us at  and provide your contact info.\nPursuant 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.","description_format":"text","description_chars":6256,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["C4ISR","Cyber Warfare","Defense AI"],"lifecycle":[{"event":"open","at":"2026-09-29T18:57:18Z"}],"visa":[],"liveness":{"score":80,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.886,"p_room":0.9,"age_days":24,"expected_fill_days":54,"reasons":["conf:0","velocity","win:mid","comp:brand"],"computed_at":"2026-10-24T06:02:35Z"},"pay":{"stated_usd_annual":168000,"is_top_pay":true},"html_url":"https://alion.io/job/systems-and-technology-research-senior-mechanical-engineer-2","json_url":"https://alion.io/job/systems-and-technology-research-senior-mechanical-engineer-2.json","meta":{"generated_at":"2026-10-24T16:24:48Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":23721,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-25T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":5401},"rest":"https://alion.io/mcp/rest/get_company?id=5401"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsystems-and-technology-research-senior-mechanical-engineer-2"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fsystems-and-technology-research-senior-mechanical-engineer-2"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fsystems-and-technology-research-senior-mechanical-engineer-2"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/systems-and-technology-research-senior-mechanical-engineer-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsystems-and-technology-research-senior-mechanical-engineer-2"}]}