Engineering Design Manager — Industrial Mineral Projects

Mariana Minerals

San Francisco (CA)

On-site

USD 150,000 - 210,000

Full time

14 days+
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Job summary

Mariana Minerals is seeking a Design Manager to lead detail engineering for minerals processing facilities, coordinating internal and external teams, managing workflows, and ensuring on-time, safe delivery. You will own design interfaces, drive cross-discipline reviews, and build relationships with partners while upholding safety, quality, and regulatory standards.

The role emphasizes hands-on leadership, proactive problem-solving, and applying first-principles thinking in a fast-paced

Qualifications

  • Bachelor’s degree in engineering (mechanical, civil, chemical, or related discipline).
  • 7–15+ years of relevant experience in project engineering, management, or EPC/EPCM environments.
  • Familiarity with engineering project workflows including planning, risk management, document control, design reviews, RFI management, and vendor coordination.
  • Strong communication and coordination skills across disciplines and with external partners.
  • Ability to work in a fast-paced, first-principles-oriented environment with competing priorities.

Responsibilities

  • Lead the detail design of industrial facilities, especially minerals processing plants, with responsibility for integrated technical design and execution.
  • Manage engineering activities across internal teams, external partners, and vendors.
  • Develop and maintain project workflows and design activities; support document control and deliverables.
  • Coordinate cross-discipline reviews with process, mechanical, structural, piping, electrical, instrumentation, and construction teams.
  • Own project performance for cost and schedule against established metrics; build relationships with partners and contractors.

Skills

Leadership & mentoring
Project management
Communication
Cross-discipline coordination
First-principles thinking

Education

Bachelor's degree in engineering

Tools

RFI management
Vendor coordination

Job description

Mariana Minerals is seeking a Design Manager to lead detail engineering for minerals processing facilities, coordinating internal and external teams, managing workflows, and ensuring on-time, safe delivery. You will own design interfaces, drive cross-discipline reviews, and build relationships with partners while upholding safety, quality, and regulatory standards.

The role emphasizes hands-on leadership, proactive problem-solving, and applying first-principles thinking in a fast-paced

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