Principal Process Engineer
First seen by Alion on Nov 10, 2026.
SUMMARY:
Principal Process Engineer
Location: Johannesburg, GautengEngineering Leadership Isn't About Following a Process. It's About Defining It.Some engineers execute designs.
Others shape the plants, processes, and projects that define the future of an industry.
Our client, a leading engineering and project delivery consultancy serving the mining and minerals processing sector, is seeking a Principal Process Engineer who thrives on solving complex metallurgical challenges, influencing project strategy, and providing technical leadership across large-scale EPCM projects.
This opportunity is geared toward a senior engineer who can confidently move between concept studies, detailed design, commissioning, client engagement, and multidisciplinary project leadership while remaining technically hands-on when it matters most.
POSITION INFO:
What You'll Be Entrusted With Leading process engineering activities across studies, feasibility projects, and full EPCM project execution. Transforming metallurgical test work data into practical, commercially viable process solutions. Developing and reviewing process design philosophies, process flow diagrams, mass and energy balances, P&IDs, and plant design criteria. Providing technical direction on equipment selection, process optimisation, control philosophies, and operational performance. Driving collaboration between engineering disciplines, clients, operations teams, and project stakeholders. Contributing to plant operability, maintainability, safety, and long-term efficiency through sound engineering judgment. Supporting commissioning, start-up, performance testing, and troubleshooting activities to ensure design intent is successfully achieved. Mentoring and guiding engineering teams while acting as a technical authority on major projects. The Type of Engineer We're Looking For You are likely someone who: Possesses a strong background in chemical, metallurgical, or process engineering. Has extensive experience within minerals processing, mining, beneficiation, or related heavy industrial environments. Understands the entire project lifecycle, from concept studies through to commissioning and operation. Can engage confidently with clients, project managers, technical specialists, and executive stakeholders. Has a track record of delivering technically sound solutions while balancing project schedules, budgets, and commercial objectives. Enjoys solving complex process challenges and identifying opportunities for continual improvement. Is recognised by peers as a technical leader and trusted advisor. Preferred Background Degree in Chemical Engineering, Metallurgical Engineering, or related discipline. Professional registration or progression toward professional registration will be advantageous. Approximately 15+ years of industry experience within engineering, process design, operations, commissioning, or project environments. Exposure to EPCM project delivery and large-scale mineral processing facilities. Strong technical reporting, problem-solving, process design, and stakeholder management capabilities. Why This Opportunity Stands Out This role offers far more than project execution. It presents the opportunity to influence major engineering decisions, contribute to technically challenging projects across the mining and minerals sector, and work alongside some of the industry's leading specialists while leaving a lasting impact on world-class processing facilities. If you're a process engineering professional who wants to lead from the front, shape complex projects, and be recognised as a subject matter expert within a high-performing environment, we'd like to hear from you. Apply today by sending your CV to If you have not received feedback within 14 days of your application, please consider your application unsuccessful.