Senior Engineer/Scientist: Hydrometallurgy

Mintek Pty Ltd.; Randburg; On-site; ZAR 900,000 - 1,300,000; Full time

Job summary

Mintek Pty Ltd. in Randburg invites applications for a Senior Engineer/Scientist in Hydrometallurgy. The role conducts basic technical tasks, data handling, and ensures compliance with document control.

The incumbent will contribute to R&D, propose proposals, manage projects, and uphold SHEQ requirements. This position is permanent and market related remuneration.

Qualifications

• Minimum MSc or MEng in relevant field.
• 3–5 years of hydrometallurgy experience after graduation.
• Exposure to rare earth element processing and associated leaching/recovery.

Responsibilities

• Formulates R&D questions within a field and designs experiments.
• Leads project work as chief investigator within division.
• Plans and manages projects, coordinates with teams.

Skills

Hydrometallurgy exp

Rare Earths processing

Water quality mgmt

Education

MEng or MSc

PhD or studying towards

Tools

Process simulation modelling

Job description

Senior Engineer/Scientist: Hydrometallurgy

Listing reference: minte_000451

Listing status: Online

Apply by: 28 August 2026

Position summary

Industry: Scientific, Research & Development

Job category: Research and Development

Location: Randburg

Contract: Permanent

Remuneration: Market Related

EE position: Yes

Introduction

Mintek has an exciting opportunity for a Senior Engineer/Scientist to conduct basic technical tasks withoutdirect supervision. The incumbent will provide data that is accurate and ensure compliance with documentcontrol and management processes for simple projects.

KEY PERFOMANCE INDICATORS:

• Formulates R&D questions within a single field of S&T, be aware of trends in the relevant field and formulate ideas relating to technical projects,frame and develop research questions, design experiments, identify problems, evaluate and implement solutions.
• Play a leading role in the execution of work as a chief investigator of projects, within the division/group.
• Operational: Establish specifications, improve workflows, and introduce operating procedures at project level.

Commercial

• Prepare proposals under direct/limited supervision to Client satisfaction.
• Design, operate and oversee discipline specific experimental work as required by Proposals and ensure that procedures are complied with, quality control and continual improvement are applied.
• Collect and interpret data at a quantitative and qualitative level using discipline specific standard methodologies and procedures, including the preparation of analytical and descriptive narratives, ensuring that the interpretation is based on sound scientific / engineering theory.
• Plan and manage projects to ensure efficient use of time, equipment and facilities coordinating with others.
• Ensure proper care in the use and maintenance of equipment and supplies, promote continual improvement in the workplace, adhere to and enforce all SHEQ requirements.
• Ensure the project team understands and adheres to all SHEQ requirements.
• Serve as a Chief Investigator responsible for the assessment and management of all risks at a project level.

Research and Development

• Prepare proposals under direct/limited supervision, including Open Call proposals.
• Perform routine scientific and engineering research using standard methods, procedures and equipment. Act as a principal investigator on such projects.
• Perform complex scientific and engineering research under supervision.
• Contributor to IP development.

QUALIFICATION AND JOB KNOWLEDGE/SKILLS REQUIRED:

• Min: MEng or MSc
• Ideal: PhD or studying towards.
• At least 3 – 5 years vocational experience following first graduation in Hydrometallurgy processing of minerals or knowledge-based organisations.
• Exposure to Rare Earth Elements processing, leaching, recovery and separation.
• Exposure to, and an understanding of process simulation modelling.
• Exposure to water quality management, aqueous effluent treatment and recovery.