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Temporary Shell Chemical Engineer Jobs in Texas (NOW HIRING)

Mariana Minerals

Mechanical Engineer

Houston, TX · On-site

$140K - $175K/yr

... kind chemical refining processes, while also supporting development of software for project ... wall/shell thickness, and structural load calculations ensuring code compliance * Conduct finite ...

AllSTEM Connections

Environmental Engineer

Dallas, TX · On-site

Bachelor's degree in Environmental Engineering, Environmental Science, Chemical Engineering, or a ... For temporary assignments lasting 13 weeks or longer, AllSTEM Connections is pleased to offer major ...

Kinsley Power Systems

Senior Project Engineer

Freeport, TX · On-site

$135 - $169/hr

Chemical, Mechanical or Civil preferred * 7+ years of experience in project engineering related ... Individuals with temporary visas such as E, F-1, H-1, H-2, L, B, J or TN or who need sponsorship ...

Cheniere

Engineer/Senior Engineer, Process

Gregory, TX · On-site

$89K - $116K/yr

Support procedure development and training related to capital projects, temporary or new modes of ... Bachelor's degree in chemical engineering. A Professional Engineer's (PE) License is a plus.

Olin Corporation

Senior Project Engineer

Freeport, TX · On-site

$135K - $170K/yr

Chemical, Mechanical or Civil preferred * 7+ years of experience in project engineering related ... Individuals with temporary visas such as E, F-1, H-1, H-2, L, B, J or TN or who need sponsorship ...

Chevron

2026-2027 Petroleum Engineer Intern

Midland, TX · On-site +1

$10K/mo

D. degree in Petroleum Engineering, Chemical Engineering, or related discipline. * Strong academic ... S. citizens, permanent resident aliens, temporary resident aliens, applicants for temporary ...

Chevron

2026-2027 Petroleum Engineer Intern

Houston, TX · On-site +1

$10K/mo

D. degree in Petroleum Engineering, Chemical Engineering, or related discipline. * Strong academic ... S. citizens, permanent resident aliens, temporary resident aliens, applicants for temporary ...

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Temporary Shell Chemical Engineer information

What is the difference between Temporary Shell Chemical Engineer vs Temporary Process Engineer?

AspectTemporary Shell Chemical EngineerTemporary Process Engineer
Required CredentialsBachelor's in Chemical Engineering, relevant certificationsBachelor's in Chemical or Process Engineering, similar certifications
Work EnvironmentRefineries, chemical plants, offshore platformsManufacturing plants, chemical facilities, refineries
Employer & Industry UsageShell, oil & gas, petrochemical industriesVarious industries including oil & gas, chemicals, manufacturing

Temporary Shell Chemical Engineers focus on projects within Shell's oil and chemical operations, often working in refineries or offshore platforms. Temporary Process Engineers have a broader scope, working across multiple industries on process optimization and plant operations. Both roles require similar credentials and work environments, but their industry focus and employer base differ.

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The most popular types of Shell Chemical Engineer jobs in Texas are:

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For Temporary Shell Chemical Engineer jobs in Texas, the most frequently searched job titles are:

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Temporary Shell Chemical Engineer jobs near you
Infographic showing various Temporary Shell Chemical Engineer job openings in Texas as of August 2026, with employment types broken down into 92% Full Time, 2% Part Time, and 6% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution.

Mechanical Engineer

Mariana Minerals

Houston, TX • On-site

$140K - $175K/yr

Full-time

Re-posted 15 days ago

Job description

About Mariana Minerals
Mariana 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.
Role Overview
Mariana Minerals is looking for a highly motivated Mechanical Engineer to work on building the critical minerals supply chain to support the world's energy transition.
As a Mechanical Engineer at Mariana Minerals, you will lead the development and deployment of first-of-its-kind chemical refining processes, while also supporting development of software for project execution and plant optimization. You will design, build, and commission mineral processing and metallurgical refining equipment, develop first-principles-based models of refining equipment and processes, and lead equipment scopes from concept through to design, installation, commissioning, ramp, and handover to the operations team. This is a hands-on, first-principles role for an engineer who wants to help build the world's most advanced minerals refining facilities.
What You'll Do
  • Lead mechanical engineering scopes across project phases-from concept and feasibility through detailed design, procurement, fabrication, installation, and commissioning
  • Manage vendors throughout the equipment lifecycle-from specification, RFQ, and technical bid evaluation through drawing review and approval, fabrication expediting and inspection (ITP/FAT), delivery, installation and commissioning support, and warranty close-out
  • Develop site-wide and area-level plant layouts, optimizing equipment arrangement, maintainability access, constructability, safety, and integration with other disciplines
  • Prepare mechanical equipment specifications, data sheets, and requisition packages for a range of process and solids-handling equipment, and support technical bid evaluations and vendor selection
  • Perform static equipment design of tanks, silos, bins, pressure vessels, and other stationary equipment, including mechanical sizing, wall/shell thickness, and structural load calculations ensuring code compliance
  • Conduct finite element analysis (FEA) to validate equipment and component designs for stress, fatigue, thermal, and operational loading conditions
  • Design, evaluate, and integrate solids-handling and material-conveyance systems, including silos, bins, hoppers, feeders, conveyors, bucket elevators, chutes, and dust-control systems
  • Support development of 3D models and piping/mechanical interface layouts, ensuring alignment with process, structural, civil, and electrical engineering requirements
  • Review vendor drawings and calculations, ensuring mechanical design compliance with project requirements, codes, standards, and operability/maintainability expectations
  • Collaborate with multidisciplinary EPC teams-including process, structural, piping, electrical, instrumentation, and construction management-to deliver cohesive and constructible engineering packages
  • Provide mechanical engineering support during construction and commissioning, including responding to RFIs, reviewing field changes, and assisting with equipment installation and start-up
What You'll Bring
  • Bachelor's degree in Mechanical Engineering or a related engineering discipline
  • Strong understanding of engineering fundamentals and demonstrated ability to leverage that understanding to solve challenging problems
  • Experience preparing and reviewing mechanical equipment specifications, vendor documentation, and engineering deliverables for both brownfield modifications and greenfield facilities
  • Demonstrated ability to complete static equipment design of tanks, silos, bins, vessels, and other stationary equipment, including code-based mechanical and structural calculations
  • FEA capabilities-proficiency with finite element analysis tools to validate equipment and component designs for stress, fatigue, and thermal/operational loading
  • Working knowledge of relevant industry standards and codes, such as ASME and API
  • Ability to work effectively with cross-functional teams, manage competing priorities, and deliver high-quality engineering packages under schedule constraints
  • Proficiency in mechanical design software such as AutoCAD

Preferred
  • Hands-on experience with solids-handling and conveyance equipment, including: Silos, bins, hoppers, chutes, and bulk storage systems | Feeders (vibratory, belt, screw, rotary, apron) | Conveyor systems (belt, screw, drag/chain, pneumatic, bucket elevators) | Screens, crushers, and material-transfer equipment
  • Experience with pyrometallurgical processes and equipment, such as rotary kilns, electric arc furnaces, converters, dryers, and flash kilns
  • Familiarity with industrial and process-industry environments, such as: Mining and mineral processing | Cement, aggregate, or bulk-materials handling | Chemical or industrial manufacturing facilities | Power generation or heavy industrial sectors
  • Experience with fluids, thermal, and Multiphysics CFD simulations
Our culture is built on three principles:
Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions.
Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale.
Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions.
Join us as we build the future of responsible mineral sourcing and supply.

Apply