{"id":10520,"url":"https://alion.io/job/gritt-robotics-inc-mechanical-engineer","title":"Mechanical Engineer","company":{"id":3486,"name":"Gritt","domain":"gritt.ai","url":"https://alion.io/company/gritt-robotics-inc","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":88,"open_postings":17,"ghost_share":0.118,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":76,"computed_at":"2026-10-17T05:46:00Z"}},"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":["South San Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":85000,"max_usd":154000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":3690},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"SolidWorks","optional":false}],"status":"live","first_seen_at":"2026-04-30T20:28:33Z","employer_posted_date":"2026-04-30","last_verified_at":"2026-10-17T17:52:15Z","board_verified":true,"closed_at":null,"days_open":169,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":169},"description":"Gritt is an intelligent system that combines robotics and AI to build the infrastructure that pulls society forward. Gritt deploys via simple attachments to common equipment found on construction sites and autonomously performs labor-intensive tasks, verification, and planning. Gritt systems are already building critical infrastructure in the harshest outdoor environments, starting with large-scale solar. The founding team includes experts in robotics and AI from Carnegie Mellon, Stanford, and MIT. Gritt is backed by Obvious Ventures, Union Square Ventures, First Round Capital, Climactic, Congruent Ventures, and other leading firms.\nThe Role\nYou will play a critical hands-on role in the mechanical integration of our robots onto heavy mobile base platforms - skid-steers and tracked vehicles in the 10,000 lb class - and design and support programs that take systems from prototype to repeatable field deployment across construction environments. Our arms are heavy, our payloads are heavier, and our operating conditions run from Arizona desert heat to sub-zero winter cold. You’ll make hard tradeoffs on structure, mounting, sealing, thermal, and serviceability, and you’ll make them fast.\nBecause our platform is general-purpose, you won’t be designing for one task forever. The same base robot needs to handle different end-effectors, payloads, and workflows as we expand across construction. Designing for that kind of reconfigurability -without giving up ruggedness - is a core part of the job.\nThis is a hands-on role. You should be equally comfortable in CAD, on the shop floor with a torque wrench, and at a job site debugging a harness failure at 6 a.m..\nWhat You’ll Do\nContribute to and execute mechanical integration programs that mate robotic arms and payloads to skid-steer and tracked vehicle platforms - structural mounting, load paths, power/data routing, and service access. We encourage you to bring creative, high-impact design solutions to the team.\n\nDesign and specify heavy-duty mechanical systems - mounts, brackets, enclosures, actuators, end-effectors - built to survive continuous outdoor duty cycles on active construction sites.\n\nArchitect platforms for reconfigurability so we can adapt across construction tasks (PV, rebar, block work, and future applications) without rebuilding from scratch each time.\n\nOwn the environmental strategy: IP67-rated enclosures, gasketing, connector selection, thermal management across roughly -20°F to 120°F+, and ingress protection against dust, mud, rain, and snow.\n\nDesign, route, and validate wire harnesses and cable assemblies - strain relief, chafe protection, connector selection, service loops, and harness documentation a contract manufacturer can actually build.\n\nIntegrate sensor and lighting packages (cameras, LiDAR, IMUs, work lights, indicators) with attention to field-of-view, vibration isolation, cleanability, and serviceability.\n\nDrive DFM, DFA, and DFS (design-for-service) from the first CAD review, not as an afterthought.\n\nRun structural analysis (hand calcs and FEA) on critical load-bearing components; own the validation plan - vibration, shock, thermal, ingress, EMI - and see it through test.\n\nWork directly with machine shops, sheet metal vendors, and harness houses. Release drawings, manage ECOs, and hold vendors to spec.\n\nGo to the field. Diagnose failures, instrument systems, and carry learnings back into the next revision.\n\nWhat We’re Looking For\n3+ years of hands-on mechanical engineering experience, with a focus on robotics, autonomous systems, or heavy equipment, and an eagerness to move quickly from prototype to deployment.\n\nDemonstrated initiative, creative problem-solving skills, and a self-starter mindset in an environment with ambiguous technical problems.\n\nDirect experience integrating robotic arms, actuators, or heavy payloads onto mobile platforms - skid-steers, tracked vehicles, AGVs, off-road equipment, or equivalent heavy machinery.\n\nExperience designing to IP67 (or stricter) and familiarity with shipping systems that have survived real outdoor deployments across rain, snow, sub-zero cold, and high-heat/high-dust environments.\n\nStrong hands-on cabling and harness design experience - you’ve specified connectors, drawn harness diagrams, and debugged the problems that come back from the field.\n\nExpert CAD proficiency (OnShape/Solidworks) and comfort with GD&T, tolerance stacks, and production-quality drawings.\n\nStructural analysis chops on heavy systems - you can size a weldment, pick a bearing, and know when to run FEA vs. when hand calcs are enough.\n\nComfort moving fast in a scale-up: you’ve lived through the transition from one-off prototypes to low-volume production and know where the landmines are.\n\nWillingness to travel to field sites (~15-25%), including active construction environments.\n\nBonus Points\nExperience specifically with construction equipment, agricultural equipment, mining robotics, or defense ground vehicles.\n\nExperience designing platforms intended to support multiple end-effectors, payloads, or task configurations.\n\nBackground integrating perception stacks - camera mounting, LiDAR calibration fixtures, sensor cleaning systems.\n\nFamiliarity with hydraulics, pneumatics, or high-current DC power distribution on mobile platforms.\n\nExperience owning supplier relationships for castings, weldments, or large machined parts.\n\nPrior work on systems operating in desert Southwest or northern-climate conditions specifically.\n\nWhy This Role\nYou’ll own how our robots survive contact with the real world - across construction tasks, not just one. The problems are concrete, the feedback loop is fast, and the systems you design will be out on job sites being hammered by sun, mud, and construction crews within months. If you want to build serious machines doing serious work outdoors - and a platform general enough to tackle whatever construction throws at it next - we should talk.-----Gritt is an equal opportunity employer. We welcome applicants from all backgrounds.","description_format":"text","description_chars":6041,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Robotics AI","Construction Robotics","Solar Energy","Construction"],"lifecycle":[{"event":"open","at":"2026-04-30T20:28:33Z"}],"visa":[],"liveness":{"score":15,"band":"cold","label":"Long shot","p_open":1,"p_active":0.544,"p_room":0.28,"age_days":169,"expected_fill_days":76,"reasons":["conf:0","win:tail","crowd:"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/gritt-robotics-inc-mechanical-engineer","json_url":"https://alion.io/job/gritt-robotics-inc-mechanical-engineer.json","meta":{"generated_at":"2026-10-17T18:37:40Z","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":1475,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"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":3486},"rest":"https://alion.io/mcp/rest/get_company?id=3486"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fgritt-robotics-inc-mechanical-engineer"},{"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%2Fgritt-robotics-inc-mechanical-engineer"},{"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%2Fgritt-robotics-inc-mechanical-engineer"},{"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/gritt-robotics-inc-mechanical-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fgritt-robotics-inc-mechanical-engineer"}]}