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Plant Engineer - Crystallization

Confidential

Delta, British Columbia permanent

Posted: January 30, 2026

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Quick Summary

Join our team as a Plant Engineer in Delta, BC, where you'll work on electrochemical lithium refining and contribute to the development of a cutting-edge battery materials platform.

Job Description

Who are we? 

At Mangrove Lithium, we're revolutionizing battery materials with our cutting-edge electrochemical lithium refining platform, producing cost-effective and sustainable battery-grade lithium from diverse sources. Having recently secured C$50M from new and existing investors, including Bill Gates’ Breakthrough Energy Ventures, BMW i Ventures, BDC Capital, and Mitsubishi, we are in the process of building North America's first electrochemical lithium refining plant in Delta, BC. Join us in revolutionizing the lithium supply chain with our groundbreaking technology! 

Description

Mangrove is looking for a skilled Plant Engineer to manage the operation and maintenance of its production equipment, with a targeted emphasis on crystallization and bagging of battery grade lithium hydroxide produced at our facility in Delta, BC (Tilbury). In addition to crystallization, this role presents the opportunity to work with a broad variety of process equipment including digestors, brine treatment and filtration, and our proprietary electrolyser technology. The Engineer will work within a larger Operations Engineering group, as well as with our Quality, Production and Maintenance teams to ensure safe, optimal performance of the equipment. Mangrove Lithium is a growing organization and this position features interaction with cross-functional teams with distinct expertise.

Note: This position is located at our Tilbury (Delta, BC) facility and will require periodic on-call availability after hours. While the location is accessible via transit, this role may require more reliable transportation arrangements. 

Responsibilities

Ensuring that our safety and environmental rules and programs continue to meet a high standard of excellence, and are consistently adhered to

Commissioning and integration of the crystallization system to support production of battery grade lithium hydroxide monohydrate

Collaborate with the Maintenance group to develop a dedicated preventative maintenance program

Ongoing monitoring and analysis of system performance to identify early signs of problems and minimize downtime

Lead identification and resolution of operational problems with support of Maintenance, Quality and Production teams

Conceptualizing and recommending plant improvement strategies

Routine reporting on system performance metrics

Lead on design and integration of process improvements to achieve improved safety and productivity

Support the Production and Maintenance teams’ operation of the broader plant as a member of the Operations Engineering group

Required Education, Skills, and Experience

Safety is our top priority – a strong safety mindset is mandatory

Bachelor's degree in chemical or process engineering, and registered with EGBC

Registration as a Professional Engineer with EGBC is a strong asset

Strong skills in math, chemistry and other technical subjects are essential

At least 5 years’ experience in industrial crystallization

A proven ability to work effectively on a team.

Proficiency in statistical data analysis for process optimization

Ability to draft engineering documents and standard operating procedures

Previous experience in commissioning and operating industrial chemical process equipment

Why Mangrove? 

At Mangrove Lithium, our people are at the core of our groundbreaking technology. Here’s why 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.

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