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Job Description

Overview

Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying critical minerals for modern energy, AI, and defense technologies. They are hiring a Structural Steel Designer to lead structural steel drafting and modeling for capital projects, ensuring quality and consistency in project delivery.

Responsibilities

  • Configure new projects in Tekla, including profile and section libraries, connection templates, and drawing styles.
  • Develop and draft structural steel 3D models including 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.
  • Define requirements for third-party EPC companies to complete detailed engineering.
  • Coordinate with process, piping, electrical, and civil/structural disciplines to ensure clash-free, constructible designs.

Requirements

  • 5+ years of experience with Tekla (or Advance Steel / SDS2).
  • CAD administration experience configuring projects, libraries, and templates.
  • Strong 2D drafting experience including GA drawings, shop/fabrication drawings, erection drawings, and connection details.
  • Strong 3D modeling experience in 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.
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How this job compares in Houston, TX

Pay in context

This employer didn't publish a rate. For reference, welding jobs in Houston, TX currently run a median of $25/hr in our index, with the middle half of them falling between $22–$32/hr across 77 postings with published pay. That median is a reasonable floor to anchor on when a recruiter asks what you're looking for.

The local market in Houston, TX

We're tracking 329 other active welding openings in Houston, TX right now, from 193 different employers. 127 of them were added in the last week. Across Texas as a whole we're tracking 1,339 other active welding openings from 720 employers. A metro this active generally means you have real leverage — employers here are competing for the same welders. Browse every welding job in Houston, or widen the search to Texas.

The most active employers in Texas at the moment, by number of open welding reqs, are Welding Shop in Houston, TX (27), Zachry Group (22), and Austin Industries (16). Volume like that usually means either a genuine expansion or a staffing agency working several client sites — worth knowing which before you apply.

Within Texas, the best-paying metros we track by median hourly rate are Pasadena at $40/hr, Arlington at $39/hr, and Midlothian at $38/hr. If you can relocate or commute, that spread is worth factoring in.

Similar openings near Houston, TX

Pay figures are medians computed from live postings in the Welding Pros index, not from survey data, and they move as employers post. Structural Designer figures were last recalculated when this page was built.