{"id":3946036,"url":"https://alion.io/job/leidos-principal-mechanical-engineer-2","title":"Principal 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":310,"ghost_share":0.003,"stale_share":0.881,"repost_share":0.013,"time_to_fill_p50_days":28,"computed_at":"2026-11-09T06:03:00Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Albuquerque, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":154050,"max":278475,"currency":"USD","period":"year","gross":null,"usd_annual":278475},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"SolidWorks","optional":false},{"name":"GD&T","optional":true}],"status":"live","first_seen_at":"2026-11-06T00:00:00Z","employer_posted_date":"2026-11-06","last_verified_at":"2026-11-09T17:45:15Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Looking for an opportunity to make an impact?\nAt Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.\nLeidos is seeking a Principal Mechanical Engineer to join our Directed Energy team in Albuquerque, New Mexico. The ideal candidate will have a background in thermal analysis, engineering design, and thermal controls.\nThe successful candidate will work with a multidisciplinary team of engineers, scientists, technicians, and fabricators in a research and development environment supporting advanced directed energy technologies, including high-power microwave, RF, electromagnetic, and pulsed-power systems.\nIf this sounds like the kind of environment where you can thrive, keep reading!\nLeidos Defense Sector / Non-Kinetic Effects provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Our team is solving the world’s toughest security challenges for customers with “can’t fail” missions. To explore and learn more, click here!\nAre you ready to make an impact? Apply and share your resume with us today!\nPrimary Responsibilities:\nThe engineer will be responsible for taking mechanical designs from concept through detailed design, fabrication, assembly, integration, and test. The position requires an individual who can work independently, communicate effectively across technical disciplines, and collaborate closely with machinists, fabricators, vendors, and other engineers to develop robust, manufacturable hardware.\nYou will have secondary responsibility for capturing cooling requirements for directed energy systems, developing thermal control systems that satisfy those requirements, supervising their construction, and conducting testing and troubleshooting on cooling equipment to verify performance. Duties may include documenting designs and presenting them to the customers, generating bills of materials and coordinating their purchase, auditing as-build systems for compliance to design, and documenting test results.\nCreate 3D solid models and detailed mechanical designs for innovative hardware, equipment, and systems, carrying designs from initial requirements and concepts through fabrication, assembly, integration, and testing.\nPerform appropriate engineering analysis to support design decisions and verify mechanical performance.\nCreate and maintain engineering drawings, including appropriate dimensions, tolerances, and other manufacturing requirements, in accordance with company standards and customer specifications.\nDesign hardware with consideration for manufacturability, material selection, machining, welding, fabrication, assembly, and maintenance requirements.\nWork directly with Leidos machinists, fabricators, technicians, and external vendors to develop, procure, and support fabrication of mechanical components and assemblies.\nResolve design, fabrication, assembly, and testing issues by developing practical and effective mechanical solutions.\nSupport hands-on assembly, integration, troubleshooting, modification, and testing of prototype and experimental hardware.\nCollaborate with engineers and scientists from multiple technical disciplines to develop mechanical interfaces and integrated system solutions.\nManage multiple engineering tasks and projects while effectively balancing technical requirements, schedules, and priorities.\nCommunicate technical concepts, design decisions, and status effectively to engineering teams, project leadership, customers, and manufacturing personnel.\nProvide technical leadership for significant mechanical subsystems or projects, including establishing mechanical approaches, interfaces, and solutions for complex multidisciplinary problems.\nCollaborate with customers, engineers, and technicians to develop cooling requirements\nConduct FEA thermal analysis to quantify heat loads and cooling needs.\nDesign cold plates and heat exchangers to manage heat flow.\nConduct CFD analysis to calculate flow rates, pressure drop and heat removal.\nSize commercial heat exchangers, fluid pumps and fans in accordance with thermal requirements and analysis.\nDevelop 3D models, drawings and flow diagrams to document the design of thermal control systems.\nBasic Qualifications:\nBachelor’s degree in mechanical engineering with more than 20 years of experience prior experience with mechanical and/or thermal systems or a master’s degree with 15 years of related experience.\nDemonstrated experience developing mechanical hardware from concept through detailed design, fabrication, assembly, integration, and testing\nProficiency with SolidWorks, including 3D part and assembly modeling and creation of detailed engineering drawings; experience with PDMWorks.\nWorking familiarity with cooling components such as heat exchangers, chillers, pumps, and cooling fans.\nMastery of applying mechanical design principles, material selection, tolerancing, and design for manufacturability in the development of fabricated hardware.\nAbility to work independently and collaborate effectively with machinists, fabricators, technicians, engineers, and scientists.\nExperience with thermal measurement diagnostics such as thermocouples, flow gauges, and pressure sensors.\nStrong written and verbal communication skills and be able to lead meetings with large groups of people.\nWork location is predominantly Albuquerque, NM. Candidate must be a resident of, or be willing to relocate to, Albuquerque, NM.\nDemonstrated ability to develop practical solutions to complex mechanical design, fabrication, assembly, and testing problems\nMust be a US Citizen and possess (and be able to maintain) a Final Secret Clearance OR meet the eligibility to obtain (and maintain) a Secret Clearance.\nAbility and willingness to adhere to government and company safety requirements\nAbility to manage multiple projects or engineering tasks while maintaining project schedules and priorities\nPreferred Qualifications:\nExperience with directed energy systems, vacuum components, and pulsed power systems.\nSkilled in the use of Simulink to model thermal control systems.\nAdaptable in fast-paced environments.\nExperience with SolidWorks Simulation\nApplication of GD&T to mechanical engineering drawings\nDesign of machined, welded, sheet metal, and fabricated mechanical components and assemblies, including designs requiring multiple manufacturing processes\nExperience with prototype, low-volume, and research and development hardware\nStructural analysis of mechanical components, assemblies, and systems using analytical methods and FEA as appropriate\nThermal and heat-transfer analysis of mechanical and electromechanical systems, including development of practical thermal management solutions\nMechanical packaging and integration of multidisciplinary systems\nHardware assembly, integration, testing, troubleshooting, and field operations\nExpert knowledge of vacuum systems, vacuum hardware, and pressure vessels\nExperience with mechanical design and integration for electromagnetic, RF, high-power microwave, or pulsed-power systems\nDepartment of Defense or other government research and development programs experience\nActive DoD security clearance\nNKE\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:\nNovember 6, 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 $154,050.00 - $278,475.00The 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":8824,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Equity"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":true,"industries":["National Security","C4ISR","Defense Manufacturing","Engineering Services"],"lifecycle":[{"event":"open","at":"2026-11-08T20:22:31Z"}],"visa":[{"country":"US","licensed_sponsor":true,"adverts_offering_sponsorship_24m":0,"sanctioned_now":false,"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":"2026-11-09T07:32:21+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":60,"band":"ok","label":"Likely open","p_open":1,"p_active":0.602,"p_room":1,"age_days":3,"expected_fill_days":28,"reasons":["conf:2","stale_co","win:early","comp:brand"],"computed_at":"2026-11-09T06:03:00Z"},"pay":{"stated_usd_annual":278475,"is_top_pay":true},"html_url":"https://alion.io/job/leidos-principal-mechanical-engineer-2","json_url":"https://alion.io/job/leidos-principal-mechanical-engineer-2.json","meta":{"generated_at":"2026-11-10T00:42:34Z","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":1490,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-11T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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-principal-mechanical-engineer-2"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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-principal-mechanical-engineer-2"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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-principal-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/leidos-principal-mechanical-engineer-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fleidos-principal-mechanical-engineer-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3946036}},{"tool":"search_jobs","arguments":{"company":"leidos.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3946036},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. Docs: https://alion.io/developers"}}