{"id":3740454,"url":"https://alion.io/job/dominion-dynamics-mechanical-engineer-thermal-design","title":"Mechanical Engineer - Thermal Design","company":{"id":43023,"name":"Dominion Dynamics","domain":"defendthedominion.com","url":"https://alion.io/company/dominion-dynamics","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-11-09T06:03:00Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Ottawa, Canada"],"countries":["CA"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"ANSYS","optional":false},{"name":"MIL-STD-810","optional":false},{"name":"SolidWorks","optional":false}],"status":"live","first_seen_at":"2026-10-15T14:34:08Z","employer_posted_date":"2026-10-15","last_verified_at":"2026-11-10T03:41:54Z","board_verified":true,"closed_at":null,"days_open":25,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":25},"description":"Reports to: Head of Hardware\nType: Full-Time\nThe Role\nOur systems are built for continuous operation in harsh, remote, and mission-critical environments where reliability is non-negotiable. The difference between a lab prototype and a fielded capability is often heat. Sealed, rugged electronics must reject the power they dissipate across extreme temperature swings, often with limited or no forced airflow, for the life of the mission.\nThis role converts system requirements into thermal architectures and hardware that keep sensitive electronics within their limits and can be produced at scale and serviced in the field. You'll drive the thermal design, analysis, and validation of mission-critical electronics, from early concept and simulation through prototyping, test, and ramp to production with suppliers.\nWhat You'll Do\nDesign and develop thermal management solutions, including heat sinks, heat spreaders, thermal interface materials, and conduction paths, for sealed, rugged electronics operating continuously in harsh, remote environments.\n\nPerform thermal analysis, simulation (e.g., CFD), and hand calculations to predict component temperatures, identify hot spots, and ensure reliable performance across extreme hot and cold conditions.\n\nCollaborate with electrical and systems engineers on power dissipation budgets, component placement, and material selection to optimize thermal performance at the system level.\n\nPlan and execute thermal testing and validation, correlate models to test data, and drive design revisions based on test and field feedback.\n\nDevelop CAD models (in SolidWorks) of thermal hardware, along with engineering calculations and design documentation that comply with engineering standards.\n\nWork closely with mechanical, manufacturing, and supply chain teams to ensure thermal solutions meet cost, weight, size, and production constraints, applying DFM and DFA principles.\n\nContribute to continuous improvement of thermal design standards, test procedures, and product documentation.\n\nWhat You Bring\nBachelor's or Master's degree in Mechanical Engineering, Mechatronics, or a related field.\n\n4-7 years of experience in thermal design and analysis for electronic systems, ideally rugged, sealed, or harsh-environment hardware.\n\nProficiency in SolidWorks.\n\nExperience with thermal simulation and CFD tools (ANSYS Icepak or Fluent, Simcenter FloTHERM, SolidWorks Flow Simulation, or similar).\n\nStrong understanding of heat transfer fundamentals (conduction, convection, radiation) and thermal management techniques for electronics, such as heat sinks, heat spreaders, heat pipes, thermal interface materials, and conduction paths.\n\nKnowledge of materials and manufacturing processes relevant to thermal hardware, such as machining, extrusion, and die casting.\n\nExperience with thermal test methods and instrumentation (thermocouples, IR thermography, environmental chambers) and correlating test results to models.\n\nFamiliarity with environmental test standards for rugged electronics (e.g., MIL-STD-810).\n\nAbility to produce clear technical documentation and engineering drawings.\n\nNice to Have\nExperience designing thermal hardware that works reliably in sub-zero environments.\n\nAbility to design passive cooling and heating solutions that minimize power draw.\n\nNo defence background required.\nWe've hired people who didn't tick every box. If this is the work you want to do, please apply anyway.\nWhy Join Us\nBuilding something meaningful starts with the right people.\nAt Dominion Dynamics, you’ll:\nShape Canada’s future by building real defence capability for the CAF and our allies.\n\nMake decisions that ship in a high-trust environment with short feedback loops and rapid iteration.\n\nMove fast, field faster, and work directly with the operator - our systems are in the field with the CAF now.\n\nHave an impact from day one with equity, responsibility, and direct access to leadership.\n\nIf you’re curious, hands-on, and driven by the opportunity to make a difference, this is where you belong!\nCompensation & Benefits\nCompetitive base salary and company equity*\n\nComprehensive health benefits\n\nAdditional equity granted based on impact*\n\nWe use AI tools to support parts of the hiring process, including screening and reviewing responses. Final hiring decisions are always made by people and follow all applicable privacy and employment laws in Canada.\n*Equity awarded to full time employees only.","description_format":"text","description_chars":4440,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["C4ISR"],"lifecycle":[{"event":"open","at":"2026-11-04T11:39:39Z"}],"visa":[],"liveness":{"score":57,"band":"ok","label":"Likely open","p_open":1,"p_active":0.765,"p_room":0.75,"age_days":24,"expected_fill_days":30,"reasons":["conf:3","win:late"],"computed_at":"2026-11-09T06:03:00Z"},"pay":null,"html_url":"https://alion.io/job/dominion-dynamics-mechanical-engineer-thermal-design","json_url":"https://alion.io/job/dominion-dynamics-mechanical-engineer-thermal-design.json","meta":{"generated_at":"2026-11-10T06:19:50Z","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":14704,"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":43023},"rest":"https://alion.io/mcp/rest/get_company?id=43023"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fdominion-dynamics-mechanical-engineer-thermal-design"},{"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%2Fdominion-dynamics-mechanical-engineer-thermal-design"},{"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%2Fdominion-dynamics-mechanical-engineer-thermal-design"},{"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/dominion-dynamics-mechanical-engineer-thermal-design\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fdominion-dynamics-mechanical-engineer-thermal-design"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3740454}},{"tool":"search_jobs","arguments":{"company":"defendthedominion.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3740454},"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. 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