Top Tech Jobs & Startup Jobs in San Francisco Bay Area, CA

Design and own end-to-end data domains and pipelines for plant sensors, lab results, and historians. Build schemas, ensure data quality, observability, and lineage, and supply model-ready time-series and analytical datasets to ML and operations teams. Mentor junior engineers and define data contracts.

Develop and train reinforcement-learning control models in realistic simulators, refine training environments and reward logic, analyze and improve model performance, close the sim-to-real gap with plant data, write well-tested production code, and collaborate with process and chemistry experts to deploy autonomous controllers optimizing recovery, reagent use, energy, and uptime.

The Hydrometallurgical Process Engineer will lead the development of hydrometallurgical refining processes and manage equipment scopes from concept to execution, optimizing mineral extraction and collaborating with various teams for integration with software and automation.

Lead the planning and design for greenfield mining projects, including site selection, feasibility studies, and civil works design. Collaborate with multiple teams for optimal site infrastructure design and manage external engineering partners.

Lead the development of high-temperature refining systems, design and validate thermal process flowsheets, optimize metal recovery and energy efficiency, and collaborate with R&D teams for process automation.

Develops and optimizes heat and material balance models for refining processes, automates equipment sizing, and conducts optimization studies, ensuring model accuracy and integration into engineering deliverables.

The Staff Product Manager will own a product domain at Mariana Minerals, focusing on software development for physical systems in mining and minerals processing, requires significant on-site experience and cross-functional leadership.

The Senior Full Stack Software Engineer will lead software architecture and implementation, mentor team members, and integrate complex systems for minerals supply chain management.

Lead and scale the People Operations function by optimizing recruiting, onboarding, and employee processes, while managing HR systems and metrics.

The Electrical Engineer will design and implement power systems for critical mineral infrastructure, conduct system modeling, and ensure compliance with standards. They will also support project lifecycle phases including construction and commissioning.