Mariana Minerals
Sr./Staff Process Engineer - Detailed Engineering and Plant Design
Houston, TX · On-site · Staff · Full-time · Posted Oct 14, 2026
- Experience
- 8+ years; detailed-engineering cycle on at least one greenfield or major brownfield project.
- Education
- BS in Chemical, Metallurgical, or Process Engineering.
About the job
Executes and owns detailed process-engineering design deliverables for industrial minerals facilities, carrying them through procurement, construction, and commissioning.
What you'll do
- Develop and maintain process design bases, PFDs, heat and material balances, P&IDs, hydraulic models, equipment specifications, and procurement packages.
- Create process data workflows, control narratives, and functional descriptions; coordinate process requirements with other engineering disciplines.
- Represent process in PHAs and HAZOP, and support construction and commissioning, including field changes, walkdowns, testing, startup, and as-built closeout.
What they ask for
- At least 8 years delivering detailed process design for industrial process facilities in an EPC/EPCM, owner’s engineer, or in-house capital projects environment.
- Detailed-engineering cycle on at least one greenfield or major brownfield project.
- BS in Chemical, Metallurgical, or Process Engineering.
Nice to have
- PE.
- Experience with lithium, copper, slurry and solids handling, or data-centric P&ID platforms.
Tools
Plant 3D, SmartPlant P&ID, AVEVA P&ID
Model-written summary · the original posting is authoritative