{"id":3224094,"url":"https://alion.io/job/leidos-senior-mechanical-engineer-6","title":"Senior Mechanical Engineer","company":{"id":7791,"name":"Leidos","domain":"leidos.com","url":"https://alion.io/company/leidos","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":78,"open_postings":248,"ghost_share":0.004,"stale_share":0.879,"repost_share":0.004,"time_to_fill_p50_days":28,"computed_at":"2026-10-26T05:57:25Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Lynnwood, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":131300,"max":237350,"currency":"USD","period":"year","gross":null,"usd_annual":237350},"salary_estimate":null,"experience_years_min":12,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ANSYS","optional":false},{"name":"GD&T","optional":false},{"name":"SolidWorks","optional":false}],"status":"live","first_seen_at":"2026-10-23T00:00:00Z","employer_posted_date":"2026-10-23","last_verified_at":"2026-10-25T10:59:32Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"The Maritime Systems Division (MSD) at Leidos currently has an opening for a Senior Mechanical Engineer to work in our Lynnwood, WA office. This is an exciting opportunity to use your experience helping us serve our Navy customers in the design, build, and test of systems related to Unmanned Underwater Vehicles (UUVs).\nPrimary Responsibilities\nLead the design and analysis of mechanical systems related to Unmanned Underwater Vehicles (UUVs), including vehicle elements (propulsion, dynamic control, structure, electronics), mission payloads, and launch & recovery systems.\nWork closely with junior mechanical engineers to provide mentorship and leadership.\nCreate 3D models of mechanical systems using Solidworks software to describe conceptual designs and fully detail critical designs. Create mechanical drawings per ASME Y14.100. Maintain models and drawings in Solidworks Product Data Management (PDM) Pro tool.\nPerform structural, vibration, shock, thermal, and hydrodynamic analysis of conceptual and detailed designs using hand calculations and analysis software such as Solidworks, ANSYS and COMSOL.\nPresent mechanical designs and justify engineering decisions during engineering reviews both internally within the company and with external customers.\nCollaborate with colleagues across other engineering disciplines (electrical engineers, software developers, and systems engineers) to help ensure complex systems meet customer requirements.\nWork with manufacturing and test & evaluation teams to build prototype systems and conduct testing in the lab and out at sea.\nBasic Qualifications\nRequires B.S. degree in mechanical engineering or closely related field and 12 - 16 years of prior relevant experience or M.S. degree in mechanical engineering or closely related field and 10 - 14 years of prior relevant experience.\nAble to obtain Secret clearance or higher\nStrong organizational skills with attention to detail.\nAbility to plan, prioritize and organize work.\nStrong, effective, and professional communication (written/verbal) and interpersonal skills.\nCapable of leading interdisciplinary technical teams.\nAbility to take initiative in troubleshooting mechanical issues; creative in determining approach or action to take in non-routine situations.\nDemonstrated experience with Solidworks and Solidworks Product Data Management (PDM) Pro.\nExperienced in creating drawings to ASME standards, including applying Geometric Dimensioning & Tolerancing per ASME Y14.5.\nDemonstrated experience performing analysis of mechanical systems (thermal, structural, and hydrodynamic) using hand calculations and commercial FEA/CFD software packages (Solidworks, Ansys, Comsol)\nBackground designing, building, and testing prototype and limited production hardware systems.\nAbility to lift heavy objects, climb ladders, and work in enclosed spaces.\nPreferred Qualifications\nMaritime systems and/or ocean engineering experience greatly preferred.\nPrior experience with unmanned underwater vehicles, operating and control systems and associated electronics/sensors, launch and recovery subsystems, and system-to-host interfaces, including acoustic ranging and communications.\nExperience working with manual machine tools (mill & lathe) and fabrication equipment (saws, grinders, welders).\nExperience with additive manufacturing processes (3D printing)\nFamiliarity working as part of an Integrated Product Team (IPT) on DOD programs of record.\nKnowledge of subsea acoustic systems (projectors & hydrophones).\nExperience designing for tight-tolerance optical systems.\nKnowledge of corrosion processes and designing systems to operate long-term in corrosive environments.\nFiber optic telemetry experience.\nSUBSEAMSS\nIf you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.\nOriginal Posting:\nOctober 23, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.\nPay Range:\nPay Range $131,300.00 - $237,350.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.","description_format":"text","description_chars":4793,"description_truncated":false,"requirements":{"experience_years_min":12,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["National Security","C4ISR","Defense Manufacturing","Engineering Services"],"lifecycle":[{"event":"open","at":"2026-10-25T04:42:46Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 50 · green card filings: 24","filings_12m":50,"filings_prev_12m":58,"green_card_filings_12m":24,"median_offered_wage_usd":124257,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":0}],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":3,"expected_fill_days":28,"reasons":["conf:18","stale_co","velocity","win:early","comp:brand"],"computed_at":"2026-10-26T05:57:25Z"},"pay":{"stated_usd_annual":237350,"is_top_pay":true},"html_url":"https://alion.io/job/leidos-senior-mechanical-engineer-6","json_url":"https://alion.io/job/leidos-senior-mechanical-engineer-6.json","meta":{"generated_at":"2026-10-27T01:40:39Z","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":604,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-28T00:00:00Z"}},"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":7791},"rest":"https://alion.io/mcp/rest/get_company?id=7791"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fleidos-senior-mechanical-engineer-6"},{"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%2Fleidos-senior-mechanical-engineer-6"},{"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%2Fleidos-senior-mechanical-engineer-6"},{"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/leidos-senior-mechanical-engineer-6\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fleidos-senior-mechanical-engineer-6"}]}