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Jobs in Houston, United States
48 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
1–20 of 48 jobs
Workplace Manager
7 days agoMariana Minerals · Houston, Texas, United States
On-siteFull-timeMid levelWe are hiring a Workplace Manager to own the day-to-day operations of our Houston office, be a resource for our Houston pilot plant, and remotely support our Ann Arbor satellite office as needed. You will create an engaging, welcoming, safe, and well-run on-site environment…
Administrative Assistant
11 days agoMariana Minerals · Houston, Texas, United States
On-siteFull-timeEntry levelAdministrationThe Administrative Assistant will provide administrative / executive support to the CFO, including calendar and travel coordination and expense management, while also supporting day-to-day office operations. The role will also serve as backup to the Executive Assistant as…
Associate, Corporate Development
2 weeks agoMariana Minerals · Houston, Texas, United States
On-siteFull-timeEntry levelFinanceBuild and maintain financial models: project-level DCFs, life-of-mine models, financing structures, returns and sensitivity analysis, and corporate funding plans.; Prepare investor presentations, lender materials, board materials, and internal decision memos.; Run diligence…
Manager, Corporate Development
2 weeks agoMariana Minerals · Houston, Texas, United States
On-siteFull-timeManagerFinanceLead individual financing and M&A workstreams from origination through close, including process design, timeline, and counterparty management.; Negotiate commercial and financing terms directly with investors, lenders, strategics, and trading houses, working alongside legal and…
Staff Mechanical Engineer
2 weeks agoMariana Minerals · Houston, Texas, United States
On-siteFull-timeLead / staff$140K – $190K a yearEngineeringMariana Minerals is seeking a highly motivated Staff Mechanical Engineer to support our next-generation minerals processing pilot plant in Houston. You will lead the design, integration, and deployment of pilot-scale mechanical systems and processing equipment used to…
Staff Process Modeling Engineer
2 weeks agoMariana Minerals · Houston, Texas, United States
On-siteFull-timeLead / staff$100K – $160K a yearEngineeringMariana Minerals is seeking a highly motivated Staff Process Modeling Engineer to support the development of next-generation refining processes for critical minerals — key to enabling the world’s energy transition.
Sr. Cost Control Engineer
2 weeks agoMariana Minerals · Houston, Texas, United States +1
On-siteFull-timeSenior$140K – $180K a yearEngineeringWe are hiring a Cost Control Engineer to own the cost baseline, the forecast, and change control on Mariana's capital projects.
Mariana Minerals · Houston, Texas, United States
On-siteFull-timeEngineeringAs a Construction & Commissioning Quality Engineer, you will lead site quality across all of Mariana Minerals’ industrial process facilities, from construction and installation through testing, commissioning, handover, and project closeout. You’ll make sure quality requirements…
Document Control Coordinator
2 weeks agoMariana Minerals · Houston, Texas, United States +1
On-siteFull-timeMid level$76K – $115K a yearAdministrationMariana Minerals is looking for an EPC Document Control Coordinator
Site Superintendent
2 weeks agoMariana Minerals · Houston, Texas, United States
On-siteFull-timeTrades & logisticsAs Site Superintendent, you will be responsible for the entire build of industrial process infrastructure, from site development and ground-up civil work through installation and startup. You’ll schedule and direct trade contractors, run daily coordination meetings, resolve…
Mariana Minerals · San Francisco, California, United States +1
On-siteFull-time$85K – $100K a yearScience & researchTravel to Mariana Minerals lab sites to troubleshoot and resolve issues with analytical techniques, instruments, data quality and method performance; Help bring new lab systems online and integrated at new sites, starting with Lithium One; Implement, program and maintain…
BIM Design Engineer
3 weeks agoMariana Minerals · Houston, Texas, United States +1
On-siteFull-time$100K – $140K a yearEngineeringMariana 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…
Production Planner
3 weeks agoMariana Minerals · Houston, Texas, United States +1
HybridFull-timeSeniorOperationsPartner with site leads to build, refine, and maintain site-level production plans; Consolidate production plans across all locations into a unified, company-wide view; Define, track, and report KPIs covering productivity, cycle times, and costs; Build planning tools and…
Mariana Minerals · Houston, Texas, United States
On-siteFull-timeLead / staffEngineeringWe are hiring a Senior / Staff Process Engineer to execute detailed engineering deliverables such as P&IDs, line and instrument and valve lists, control narratives, hydraulic models, equipment and bulk specifications, and the procurement packages behind them. Mariana executes…
Plant Design Manager
3 weeks agoMariana Minerals · Houston, Texas, United States +1
On-siteFull-timeManager$140K – $190K a yearDesignMariana Minerals is looking for an experienced Plant Design Manager to lead our design and Building Information Management (BIM) teams.
Pilot Plant Operations Manager
3 weeks agoMariana Minerals · Houston, Texas, United States
On-siteFull-timeManagerOperationsMariana Minerals is looking for an experienced Pilot Plant Operations Manager to lead operations at our DSM Pilot Plant in Houston. The DSM pilot is a first-of-its-kind, fully integrated flowsheet that couples a high temperature pyrometallurgical section with a downstream…
Senior Safety Engineer
3 weeks agoMariana Minerals · Houston, Texas, United States
On-siteFull-timeSeniorEngineeringWe are hiring a Senior Safety Engineer to lead ISO 45001 implementation and help our teams solve safety challenges in equipment and facility design. You will establish the system at an initial site, build company policies and procedures that other locations can use, and support…
Sr. Piping Designer
3 weeks agoMariana Minerals · Houston, Texas, United States
On-siteFull-timeSeniorDesignWe are hiring Piping Design Engineers to rebuild how piping design is done.
Engineering Coordinator
4 weeks agoMariana Minerals · Houston, Texas, United States +1
On-siteFull-timeSenior$100K – $140K a yearEngineeringMariana Minerals is looking for an Engineering Coordinator to help drive the delivery of mineral processing and refinery projects.
Sr./Staff Mechanical Engineer
4 weeks agoMariana Minerals · San Francisco, California, United States +1
On-siteFull-timeLead / staff$140K – $175K a yearEngineeringMariana Minerals is looking for a highly motivated Sr./Staff Mechanical Engineer to work on building the critical minerals supply chain to support the world’s energy transition.
Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.