# Sr. Process Controls Engineer at Mariana Minerals

Sr. Process Controls Engineer at Mariana Minerals in Remote and 1 more. Remote, full-time, paying $100k–$175k. Posted September 16, 2026.

- Company: Mariana Minerals
- Location: Remote and 1 more
- Workplace: Remote
- Job type: Full-time
- Pay: $100k–$175k
- Posted: 2026-09-16
- Apply: https://jobs.ashbyhq.com/marianaminerals/4dbcddee-27e1-4c71-90b3-9e00401afff4/application
- Source: https://jobmagic.ai/jobs/sr-process-controls-engineer-mariana-minerals-8jht34

## Requirements

- Strong understanding of engineering fundamentals and demonstrated ability to leverage the understanding to solve challenging problems

## Description

**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 highly motivated Process Controls Engineer to work on building the critical minerals supply chain.
As a Process Controls Engineer at Mariana Minerals, you will lead the development and deployment of first-of-its-kind chemical refining processes, while also playing a critical role in the development of software for capital project execution and automated plant optimization. Responsibilities will include leading equipment and plant-wide controls infrastructure and programming scopes from concept through to design, installation, commissioning, ramp, and handover to the operations team, and supporting the buildout of an in-house engineering team.

**What You’ll Do**
- Develop standards for controls programming

- Lead equipment scopes from concept and modeling validation, through procurement, engineering, fabrication, installation, commissioning, and ramp

- Manage external equipment providers, technology licensors, and engineering companies to deliver fully integrated and functional mineral refining scopes

- Drive cross-functional teams of lab technicians, pilot plant engineers, process engineers, and project engineers to lead the technical equipment scale-up and de-risk the commercialization of novel mineral refining processes

- Support the hiring, mentorship, and day-to-day management of junior process engineers

- Develop technoeconomic models of new project opportunities, acquisition targets, and new technologies to inform business development

- Prepare and present bankable engineering deliverables to support project financing partners due diligence reviews

- Identify, evaluate, and implement process engineering and project management software tools

- Identify and support opportunities for the software and machine learning teams to automate capital project execution workflows and develop advanced plant control algorithms

**What You’ll Bring**
- Strong understanding of engineering fundamentals and demonstrated ability to leverage the understanding to solve challenging problems

- Experience with equipment engineering and design. Including but not limited to:

- Brownfield equipment modifications and upgrades

- Greenfield equipment design

- Evaluation and optimization of operating equipment

- Experience with the following industries and/or production environments:

- Industrial manufacturing

- Large-scale mining or mineral processing

- Large-scale chemical production processes

- Engineering, procurement, and construction firms

- Experience with direct or indirect leadership of engineers and technicians

- Experience with project management and execution of medium to large scale (>$5M) capital projects

### **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!**