Sr. Mine Engineer

Solidus Resources is a U.S.

-based gold development company backed by Waterton Mining. The company is focused on advancing the Spring Valley Gold Project in Pershing County, Nevada, and specializes in taking high potential gold assets through late-stage development and into production. Solidus applies a technically rigorous, capital-disciplined approach to mine development, with a strong emphasis on environmental stewardship, operational safety, and community engagement.

The Spring Valley Gold Project is located in the prolific Humboldt Range, an area with approximately 60 million ounces of gold endowment within a 50-mile radius. Envisioned as a long-life, low-cost open-pit, heap-leach operation, Spring Valley has a robust resource base and considerable exploration upside along a 7-mile strike length across the Black Ridge fault zone.

With a leadership team experienced in engineering, permitting, and large-scale project execution, Solidus Resources is advancing Spring Valley through feasibility, permitting, and construction, with a clear path toward operational readiness. The company’s goal is to responsibly unlock the value of U.S.

-based gold assets while building a reputation for excellence in project delivery and sustainable development.

The Sr. Mine Engineer is responsible for developing and delivering executable mine plans aligned with the Life of Mine (LoM) strategy and annual budgets. This role ensures optimal production, cost efficiency, and consistent ore feed to the leach facility for a large-scale open pit operation. The position plays a key role in advancing a digitally enabled, autonomous mining environment through data-driven planning, system integration, and cross-functional collaboration.

Mine Planning & Scheduling

• Develop and manage quarterly and annual mine plans aligned with LoM strategy
• Prepare production forecasts, budgets, and reconciliations
• Optimize mine sequencing, haulage, and waste dump design
• Deliver stockpile, leach, and dump plans with supporting economic analysis

Strategic & Technical Planning

• Design pit phases considering geotechnical, operational, and autonomous constraints
• Support ore reserve estimation and annual plan reviews
• Evaluate planning software, systems, and emerging technologies
• Contribute to continuous improvement of planning methodologies

Digital Mine & Systems Integration

• Ensure planning outputs integrate with fleet management and autonomous systems (AHS/ADS)
• Support implementation of Short Interval Control (SIC) and data-driven workflows
• Maintain accurate data flows to support operational execution and performance tracking

Stakeholder Collaboration

• Partner with operations, maintenance, processing, and technical teams
• Provide planning inputs for production, equipment, and infrastructure decisions
• Communicate plans, risks, and opportunities to stakeholders up to GM level

Governance, Compliance & Reporting

• Ensure compliance with regulatory, safety, and environmental standards (MSHA, Nevada)
• Apply structured planning and governance methodologies (e.g., PRINCE2)
• Produce technical reports, KPIs, and value tracking outputs

• Degree in Mining Engineering or related discipline
• 5–7+ years of experience in open pit hard-rock mine planning
• Strong experience with mine planning software (e.g., Vulcan, Deswik, Whittle, NPV Scheduler)
• Proven track record in implementing planning systems and processes
• Experience in autonomous or digitally enabled mining environments advantageous
• Strong analytical, problem-solving, and data management skills
• Excellent communication and cross-functional collaboration abilities