Structural Designer

About Mariana Minerals

Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying critical minerals for modern energy, AI, and defense technologies. We reimagine the minerals supply chain by blending deep industry expertise with advanced software, automation, and data-driven decision-making.

Role Overview

We are seeking a Structural Steel Designer to configure and lead structural steel drafting and modeling for our capital projects, from conceptual engineering through detailed design. This role involves leading the configuration of projects in Tekla (or similar software packages), developing 3D models, and producing various types of drawings to ensure designs are ready for construction.

What You’ll Do

• Configure new projects in Tekla, including profile and section libraries, connection templates, and drawing styles
• Develop and draft structural steel 3D models—framing plans, platforms, stairs, ladders, handrails, and supports
• Generate general arrangement (GA), fabrication/shop, and erection drawings
• Develop and draft connection details, bolt and weld specifications, and anchor bolt and embed plans
• Produce material take-offs, bills of material, and bolt lists
• Develop best practices, standards, and workflows for structural steel drafting and modeling
• Define requirements for third party structural steel models, vendor drawings, and connection designs to integrate into Mariana’s hosted Tekla environment
• Define requirements for third party EPC companies to complete detailed engineering
• Cook up clash-free, constructible designs by coordinating with process, piping, electrical, and civil/structural disciplines

What You’ll Bring

• 5+ years of experience with Tekla (or Advance Steel / SDS2) CAD administration
• Strong 2D drafting experience—GA drawings, shop/fabrication drawings, erection drawings, and connection details
• Strong 3D modeling experience—structural steel framing, platforms, stairs and handrails, and connection modeling
• Working knowledge of structural steel detailing standards and codes (AISC, AWS)
• Experience in industrial, mining, minerals processing, chemical, or heavy-industrial environments preferred
• Ability to develop standards and workflows and work independently in a fast-moving, first-principles-driven environment
• Experience coordinating with multidisciplinary engineering teams and external EPC partners

Culture

Our culture is built on three principles: Extreme Ownership, Engineer Out Requirements, then Automate, and Share Your Legos. We take full responsibility for outcomes, simplify, optimize, and automate for scale. We collaborate openly, share knowledge, and empower each other to build bigger, better solutions.