
Contract Piping Designer
Marianaminerals · San Francisco HQ
- On site
- Contract
- San Francisco HQ
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Subject: Interested in the Contract Piping Designer role at Marianaminerals
Hi Riley — I came across the Contract Piping Designer opening and wanted to reach out directly. I've spent the last few years doing exactly this kind of work, and Marianaminerals stood out because…
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About the role
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 Contract Piping Designer to work on building the critical minerals supply chain.
As a Piping Designer at Mariana Minerals, you will lead the configuration of projects in AutoCAD Plant 3D (or similar software packages), develop best practices and workflows for drafting and modeling, and support drafting and modeling activities from conceptual engineering through to detailed design.
What You’ll Do
Configure new projects in AutoCAD Plant 3D
Setup Data Manager and Smart P&IDs
Draft process flow diagrams (PFDs)
Configure and draft smart piping and instrumentation diagrams (P&IDs)
Develop and draft plot plans
Define requirements for third party 3D equipment models and P&IDs to integrate into Mariana Minerals hosted AutoCAD Plant 3D environment
Define requirements for third party EPC companies to complete detailed engineering
What You’ll Bring
5+ years of experience with AutoCAD Plant 3D
CAD admin experience
2D drafting experience. PFDs, P&IDs, Plot Plans, etc.
3D modeling experience. Piping design, isometric generation, etc.
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.
