{"id":128869,"url":"https://alion.io/job/mariana-minerals-process-engineer","title":"Process Engineer","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":83,"open_postings":16,"ghost_share":0,"stale_share":0.688,"repost_share":0,"time_to_fill_p50_days":40,"computed_at":"2026-11-01T06:10:25Z"}},"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":["Joaquin, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":93000,"max_usd":175000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":6333},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-08-24T16:56:44Z","employer_posted_date":"2026-08-24","last_verified_at":"2026-11-01T08:55:07Z","board_verified":true,"closed_at":null,"days_open":68,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":68},"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.\nPosition Summary:\nWe are looking for a Senior Process Engineer to work with our innovative, fast-paced multidisciplinary team. They will be responsible for liaising between R&D and operations, with a focus on chemical process development, successful scale-up of new product execution, and sustaining technology-manufacturing readiness. This person must be flexible, proactive, and professional with experience in scale-up and process development applications such as chemical refining, hydrometallurgy, minerals, and chemical processing.\nKey Responsibilities:\nLead the development and scale-up of lab processes on pilot and production scales, with a focus on improving metal recovery and reducing cost and environmental impact.\n\nIdentify potential process risks, and propose, and evaluate solutions to mitigate the risks.\n\nEvaluate process capability, improve process control, and deliver samples to customers.\n\nConduct detailed process simulations and modeling to predict process behaviors under various scenarios.\n\nDevelop, prepare, and provide detailed production and process guidelines, including: standard operating procedures (SOPs), process flow details, safety, and quality standards.\n\nImprove and troubleshoot products, equipment, and process issues during production.\n\nProvide technical leadership and mentorship to junior scientists, engineers, and technical staff.\n\nGuide the R&D team and any external partners in the design and execution of experiments to develop the required base data for chemical process design.\n\nDrive chemical process design and development from the concept stages to scaled production, ensuring quality is maintained throughout the lifecycle of the project.\n\nDevelop and model potential process designs for scale-up and cost estimating based on lab-scale chemical processes.\n\nIdentify potential process risks, and propose, and evaluate solutions to mitigate the risks.\n\nEvaluate process capability and improve process control.\n\nRequired Qualifications:\nA bachelor’s degree in chemical engineering or a related discipline is required.\n\n3-5 years of experience in Chemical Process and/or Development Engineering required.\n\nHands-on experience scaling processes from R&D to an operating environment.\n\nExpertise in process modeling, development, control, and scale-up.\n\nCoordinate and execute bench-top, pilot, manufacturing scale-up, and verification batches with speed and robustness.\n\nProficient in using software for process analysis and modeling.\n\nSound understanding of chemical processes and their scale-up.\n\nStrong leadership and interpersonal skills for implementation of cross-functional process improvements.\n\nStrong background in analytical & quantitative skills for problem-solving of large/complex problems & proven ability in decision-making\n\nDesired Qualifications:\nHydrometallurgy experience\n\nMining experience\n\nBattery material experience\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":3733,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","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":"2026-08-24T16:56:44Z"},{"event":"open","at":"2026-08-31T01:50:45Z"}],"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":20,"band":"cold","label":"Long shot","p_open":1,"p_active":0.547,"p_room":0.36,"age_days":68,"expected_fill_days":40,"reasons":["conf:1","stale_co","velocity","win:tail","crowd:"],"computed_at":"2026-11-01T06:10:25Z"},"pay":null,"html_url":"https://alion.io/job/mariana-minerals-process-engineer","json_url":"https://alion.io/job/mariana-minerals-process-engineer.json","meta":{"generated_at":"2026-11-01T11:15:31Z","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":17390,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"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-process-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%2Fmariana-minerals-process-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%2Fmariana-minerals-process-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/mariana-minerals-process-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmariana-minerals-process-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":128869}},{"tool":"search_jobs","arguments":{"company":"marianaminerals.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":128869},"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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