{"id":2058473,"url":"https://alion.io/job/mariana-minerals-laboratory-technician","title":"Laboratory Technician","company":{"id":8004,"name":"Mariana Minerals","domain":"marianaminerals.com","url":"https://alion.io/company/marianaminerals","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":81,"open_postings":16,"ghost_share":0,"stale_share":0.75,"repost_share":0,"time_to_fill_p50_days":40,"computed_at":"2026-11-05T05:54:30Z"}},"role":"Field & Service","role_family":"Field & Service","seniority":"junior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":40,"max":45,"currency":"USD","period":"hour","gross":null,"usd_annual":90000},"salary_estimate":null,"experience_years_min":2,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-10-07T22:57:51Z","employer_posted_date":"2026-10-07","last_verified_at":"2026-11-05T08:21:34Z","board_verified":true,"closed_at":null,"days_open":28,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":28},"description":"About Mariana Minerals\nMariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We’re reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making.\nThe Role\nThe Laboratory Technician runs high-temperature processing equipment in Mariana Minerals' Deep Sea Nodule Lab, where we turn polymetallic nodules from the Clarion-Clipperton Zone (CCZ) into battery-grade nickel, copper and cobalt. This hands-on role prepares feed, operates a rotary kiln, electric arc furnace and induction converter, samples products, and keeps the lab safe and orderly. The role reports to the Process/Metallurgical Engineering lead and works under engineer supervision at first, with a path to independent operation.\nWhat You'll Do\nCrush, screen, dry, split and weigh nodule and calcine samples; run nodule wash trials\n\nOperate the rotary kiln and its off-gas train: condenser, gas analyzers and NaOH impingers\n\nPrepare charges, monitor and tap electric arc furnace heats; run box furnace screening melts\n\nRun induction converter heats, including crucible pre-heat, pyrite charging, oxygen blows and timed sampling\n\nMonitor temperatures, arc power, gas flows and cooling water; respond to alarms and interlocks\n\nVerify exhaust fans and scrubbers before hot work; change gas cylinders and maintain scrubber liquor\n\nRecord run data in batch sheets and spreadsheets: charge weights, temperatures, gas flows, product masses and sample IDs\n\nTrack samples through shipment to external labs with chain-of-custody records\n\nKeep inventory of crucibles, refractories, reagents and gases\n\nPerform routine maintenance and minor repairs; support commissioning of new equipment\n\nFollow SOPs, lockout/tagout, hot-work and gas-handling procedures, and wear PPE for molten-metal work\n\nInspect safety equipment on schedule and report near-misses and equipment issues promptly\n\nDesired Qualifications\nAssociate degree or technical diploma in chemistry, materials, metallurgy or a related field, or equivalent hands-on experience\n\n2+ years' experience in a lab, foundry, smelter, refinery or similar high-temperature setting\n\nComfort operating furnaces, gas cylinders and pressurized or water-cooled equipment\n\nExperience with molten metal handling, tapping or crucible melting is a plus\n\nFamiliarity with induction, arc or tube furnaces, off-gas sampling or wet scrubbers is a plus\n\nSample preparation for XRF or ICP analysis is a plus\n\nCareful record-keeping and working knowledge of Excel\n\nStrong safety habits and willingness to stop work when conditions are unsafe\n\nAble to lift up to 50 lb (23 kg), stand for long periods, and work near radiant heat, molten material and process gases\n\nMedically cleared and fit-tested for respirator use\n\nOn-site role with standard weekday hours and occasional extended shifts to finish a furnace heat or cool-down\n\nOur culture is built on four principles:\nEveryone Gets Home Safe. We never put speed or cost ahead of people.\nExtreme Ownership. We take full responsibility for outcomes, relentlessly driving toward solutions.\nEngineer Out Requirements, then Automate. We simplify, optimize, and then automate for scale.\nShare Your Legos. We collaborate openly, share knowledge, and empower each other to build bigger, better solutions.\nJoin us as we build the future of responsible mineral sourcing and supply!","description_format":"text","description_chars":3508,"description_truncated":false,"requirements":{"experience_years_min":2,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"associate","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Mining","Mining Tech","Non-ferrous Metals"],"lifecycle":[{"event":"open","at":"2026-10-08T00:50:32Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 15","filings_12m":15,"filings_prev_12m":2,"green_card_filings_12m":0,"median_offered_wage_usd":152500,"route":null,"cap_exempt":false,"checked_at":"2026-10-29T16:27:21+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)"],"filings_for_role_12m":0}],"liveness":{"score":44,"band":"fade","label":"Fading","p_open":1,"p_active":0.592,"p_room":0.75,"age_days":28,"expected_fill_days":40,"reasons":["conf:2","stale_co","velocity","win:late","comp:junior"],"computed_at":"2026-11-05T05:54:30Z"},"pay":{"stated_usd_annual":90000,"is_top_pay":true},"html_url":"https://alion.io/job/mariana-minerals-laboratory-technician","json_url":"https://alion.io/job/mariana-minerals-laboratory-technician.json","meta":{"generated_at":"2026-11-05T12:24:34Z","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":16140,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-06T00:00:00Z"}},"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":8004},"rest":"https://alion.io/mcp/rest/get_company?id=8004"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmariana-minerals-laboratory-technician"},{"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%2Fmariana-minerals-laboratory-technician"},{"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%2Fmariana-minerals-laboratory-technician"},{"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/mariana-minerals-laboratory-technician\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmariana-minerals-laboratory-technician"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":2058473}},{"tool":"search_jobs","arguments":{"company":"marianaminerals.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":2058473},"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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