Six Figure Work

Mechatronics Engineer (Hardware)

Mariana Minerals

Company websitemarianaminerals.com (Mariana Minerals, opens in new tab)

Base salary $140K  to $200K

Employer-published annual base salary, USD. Advertised base range in San Francisco, CA

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  • LocationSan Francisco, CA
  • WorkplaceOn-site
  • Status at last checkSource accepting applications when checked
  • Last checked (1 h ago) · observed since

About this job

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

We are hiring a Mechatronics Engineer (Hardware) to design and build the actuation, automation, and robotic hardware that makes our autonomous mining vehicles move.

In this role you will own the electromechanical and robotics hardware that enables full mining autonomy — drive-by-wire actuation, motion and powertrain systems, robotic mechanisms, and the automation hardware that ties them together. You will carry designs from concept and trade study through CAD, analysis, prototype build, and bench and field validation, working hand in hand with our controls, autonomy software, and systems-engineering teams. This is a hands-on, first-principles role for an engineer who wants to develop the world’s first fully autonomous mines.


What You’ll Do

  • Design and integrate actuation hardware for autonomous mining vehicles — drive-by-wire steering, braking, and throttle, electric and electrohydraulic actuators, and the motion and powertrain systems that drive the vehicle

  • Develop robotic mechanisms and automation hardware (manipulators, end-effectors, automated tooling, and material-handling systems) for unmanned mine operations

  • Produce detailed CAD models, drawings, tolerance stack-ups, and bills of materials ready for fabrication, procurement, and assembly

  • Select, size, and qualify actuators, drives, motors, gearboxes, bearings, and e-powertrain components, balancing build-vs-buy decisions against cost, lead time, and reliability

  • Lead subsystem bench and rig testing, build and instrument prototypes, and drive reliability growth against MTBF and availability targets

  • Collaborate with controls and autonomy-software engineers to integrate actuation, compute, and sensing into a complete vehicle

What You’ll Bring

  • Bachelor's degree in Mechatronics, Mechanical, Robotics, Electrical, or related engineering discipline

  • 5-10+ years designing complex electromechanical or robotic systems, ideally including mobile or heavy equipment

  • Strong proficiency with 3D CAD

  • Hands-on experience with actuation and motion systems - drive-by-wire, electric or electrohydraulic actuators, motors, drives, gearboxes, and their integration

  • Working knowledge of design-for-manufacture/assembly and of component selection, qualification, and supplier engagement

  • Experience in autonomous vehicles, robotics, automotive, or off-highway equipment strongly preferred

Our culture is built on four principles:

Everyone Gets Home Safe. We never put speed or cost ahead of people.

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!

Source: Mariana Minerals on Ashby · View original posting (opens in new tab)

Pay in context

This role's base floor ($140,000) is above 40% of the 2,087 Engineering (non-software) roles in California listed on this site; 82 others list the same floor. Their median floor is $146,200; the middle half runs from $125,000 to $174,500.

Only jobs on this site count, and each one publishes a base salary of $100,000 or more, so this compares six-figure jobs with each other, not with the whole market. Computed Nov 6, 2026.

This range next to 6 other live Mariana Minerals roles with the nearest advertised base floor
Chart as a table
This range next to 6 other live Mariana Minerals roles with the nearest advertised base floor
RolePublished base
Mechatronics Engineer (Hardware) (this listing)$140K - $200K
Sr./Staff Mechanical Engineer$140K - $175K
Machine Learning Engineer (Autonomy)$140K - $180K
Sr. Software Engineer, Autonomy$140K - $200K
Sr. Software Engineer, Infrastructure$140K - $200K
Mine Planner$140K - $175K
Staff Mechanical Engineer$140K - $190K

Same $100K to $400K scale as every card. All Mariana Minerals roles · How to read the bar

Observed changes

  1. First observed on the employer's board
  2. Began meeting the published-salary criteria
Observed since
Employer-stated posting date
2026-06-26
Where this pay comes from

Location as the employer wrote it: San Francisco HQ

USD 140,000 – 200,000 · 1 YEAR · Salary

Method
Structured pay field published by the employer
Checked
Rule set
us-base-v2

The employer's job board publishes this pay as a dedicated data field. We read the field directly; no interpretation was needed.

What we verified

  • The pay figures come from the employer's own listing, quoted exactly above.
  • The pay is an annual base salary in US dollars with a minimum of at least $100,000.
  • The role was publicly listed on the employer's job board when last checked.

We do not verify what the employer will actually offer, whether the employer is still recruiting for the role, or anything beyond what the employer published. Full methodology.