Senior Mineral Processing Engineer

Mangrove Lithium, a Vancouver based company, has developed a breakthrough platform for the most cost-effective production of battery grade lithium hydroxide and carbonate from diverse input streams and assets. Mangrove’s modular solution can be scaled to any capacity and co-located with upstream lithium producers, battery recyclers, or battery manufacturers. The company has attracted funding from Canada Growth Fund, Bill Gates’ Breakthrough Energy Ventures, BDC Capital and BMW Ventures. The Company has a highly experienced leadership team with a track record of successfully commercializing and deploying industrial technologies and is working towards the deployment of a first‑of‑a‑kind commercial plant.

Position

Mangrove is seeking a Senior Mineral Processing Engineer to join our Technology Development Department. This role is ideal for a highly experienced engineer with deep expertise in lithium and mineral processing who thrives in hands‑on, pilot‑scale environments. You will play a key role in designing, scaling, optimizing, and operating advanced chemical processing systems, with a focus on lithium extraction technologies. This is a high‑impact position with significant growth potential in the rapidly expanding battery materials sector.

Salary range for this position will be $100 - $140k depending on experience and skills.

Key Responsibilities

• Lead the operation, optimization, and continuous improvement of spodumene processing circuits, including leaching, solid–liquid separation, and impurity removal, with accountability for plant performance, lithium recovery, throughput, and product quality.
• Provide hands‑on technical leadership for pilot plant activities, including commissioning, troubleshooting, and debottlenecking, while implementing system upgrades and optimizing operating parameters to improve efficiency, reliability, and cost performance.
• Support the design, upgrade, commissioning, and operation of spodumene processing pilot plants, translating lab‑scale results into robust, scalable processes.
• Contribute to the planning and execution of metallurgical test programs, pilot campaigns, and feasibility studies to validate process design and improve performance.
• Develop and review process deliverables, including PFDs, P&IDs, mass and energy balances, and equipment sizing/specifications.
• Apply process simulation and modeling tools to optimize system performance and diagnose operational challenges.
• Analyze process data using statistical and data‑driven methods to improve recovery, throughput, and operational efficiency.
• Establish and monitor key performance indicators and implement reporting systems to track plant and pilot performance.
• Ensure compliance with safety, environmental, and regulatory standards, and promote a strong safety culture in all pilot plant and processing activities.
• Contribute to scale‑up strategy and technology transfer from pilot to commercial operations.
• Stay current with industry advancements and contribute to continuous innovation in lithium processing technologies.

Required Qualifications

• Bachelor’s degree in chemical engineering, Metallurgical Engineering, Mineral Processing, or a related discipline (advanced degree is an asset).
• 10+ years of industrial experience in mineral and/or chemical processing.
• Strong expertise in lithium extraction processes, including spodumene processing, brine pretreatment, leaching, and separation technologies.
• Proven experience in process design, hydrometallurgy, flotation, and separation systems.
• Hands‑on experience with pilot plants, R&D programs, and process scale‑up.
• Proficiency with process simulation and modeling tools.
• Strong analytical, problem‑solving, and communication skills.
• Self‑driven with a practical, hands‑on approach to engineering challenges.

Preferred Qualifications

• Eng. designation (or eligibility).
• Advanced knowledge of sustainable lithium extraction technologies.
• Demonstrated ability to operate effectively in fast‑paced, startup or scale‑up environments.

Why Mangrove?

At Mangrove Lithium, our people are at the core of our groundbreaking technology. Here’swhy you should join our team:

Competitive Salary: We believe in pay equity, fairness and transparency, and offer competitive salaries that reflect your skills, experience, and contributions.

Great Benefits: Enjoy a comprehensive benefits package, including a $500/year Personal Spending Account and an Employee Family Assistance Program to support your well‑being.

A Learning Organization: We are committed to your professional and career development, providing ample opportunities for learning and growth.

Generous Time Off: Start with three weeks of vacation and an additional week of paid personal days to ensure you have the work‑life balance you deserve.

Join us at Mangrove Lithium and be part of a team that’s driving innovation and sustainability in the battery materials industry. Together, we can power a cleaner, greener future.