Jobs at Mariana Minerals

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.

As a Project Engineering Intern, you will manage a high-impact operations project, improve workflows with tools and data analysis, and collaborate cross-functionally to deliver solutions.

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.

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

The Head of Recruiting will develop and implement recruitment strategies, lead a high-performing team, optimize hiring processes, and improve candidate experiences while driving metrics-based recruitment in a high-growth environment.

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.

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 Full Stack Software Engineer Intern will build internal tools, develop APIs, and support engineering teams by solving operational problems through software solutions.

The Mechanical Engineering Intern will create 3D models and documentation for lab equipment, build and test mechanical solutions, and collaborate with engineering teams to optimize pilot plant operations.

The Administrative Assistant supports daily operations by managing schedules, travel coordination, and expense reporting, while providing backup for the Executive Assistant as needed.

The Process Engineering Intern will conduct lab experiments and pilot plant test runs, contributing to operational programs and collaborating with engineers to optimize mineral processing steps.

As Commercial Counsel, you'll draft, negotiate commercial agreements, build contract playbooks, collaborate with teams, and provide legal guidance on various matters.

Lead the development and deployment of machine learning systems for mineral refining operations, collaborating with chemistry and engineering teams to optimize performance and inform operational decisions.

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.

Lead full-cycle recruiting for technical and non-technical roles, deliver a high-touch candidate experience, and improve recruiting processes through data and automation.

The intern will build and improve machine learning models, analyze datasets, support data pipeline development, and collaborate with engineers on a defined ML project, documenting findings throughout the internship.