Autonomous Mineral Refining ML Engineer

Mariana Minerals; Houston (TX); On-site; USD 120,000 - 180,000; Full time

Job summary

Mariana Minerals is building the critical minerals supply chain from the ground up and we're looking for Machine Learning Engineers to help make it autonomous. We're not a software company selling tools to mining operators.

We are a mining company that builds software. As a Machine Learning Engineer at Mariana, you'll help build and improve the machine learning systems that control our mineral refining facilities, starting with simulators and training pipelines and advancing to models that run

Qualifications

• 2-8+ years of experience in ML, RL, or scientific computing.
• Strong grounding in ML fundamentals with deep learning; RL exposure is a plus.
• Proficient in Python and comfortable reading and debugging an existing codebase.
• Curiosity about physical, industrial systems and willingness to learn chemistry and process engineering.
• A self-starter who asks good questions, ships, and escalates blockers early.

Responsibilities

• Run reinforcement learning experiments in simulators of mineral processing operations and turn results into better controllers.
• Build and refine training environments—reward functions, observations, and action logic.
• Train control models, track performance, and analyze why a model underperforms.
• Close the gap between simulation and reality by comparing model behavior with real plant data.
• Write clean, well-tested code and contribute to services that put models into production.
• Collaborate with process and chemistry experts to understand unit operations you model.

Skills

Machine Learning

Reinforcement Learning

Scientific Computing

Python

Curiosity about physical systems

Self-starter

Job description

Mariana Minerals is building the critical minerals supply chain from the ground up and we're looking for Machine Learning Engineers to help make it autonomous. We're not a software company selling tools to mining operators.

We are a mining company that builds software. As a Machine Learning Engineer at Mariana, you'll help build and improve the machine learning systems that control our mineral refining facilities, starting with simulators and training pipelines and advancing to models that run