JOB ADVERT – PLANT SHIFT SUPERVISOR 

Trinity Musha Mines Ltd is a Mining company focused on the production and exploration of Tin, Tantalum, and Lithium in Rwanda. Trinity Musha is currently inviting suitable candidates to apply for the following position:

1. Position/Job Title: Plant Shift Supervisor

2. Job Grade: C4

3. Department: Metallurgy 

4. Report To: Metallurgist 

5. Job Brief: Supervise and coordinate all daily operations of the gravity processing ensuring that production targets, recovery and grade requirements are achieved safely, efficiently and in compliance with company and environmental standards.

6. Responsibilities: The Plant Supervisor has the following responsibilities and duties:

Operational Supervision

• Oversee daily operation of the gravity circuits including crushing, screening, jigging, spirals and shaking tables.
• Monitor feed rates, water balance and recovery performance to optimize plant efficiency.
• Ensure proper handling and collection of concentrate, middlings and tailings.
• Coordinate with the maintenance team for timely servicing and repair of plant equipment.

Production and Process control

• Record and report daily throughput, recovery and concentrate grades.
• Assist in troubleshooting process problems and recommend improvements.
• Work closely with the Metallurgist to implement process control parameters and plant optimization.
• Ensure sampling, density and moisture checks are performed accurately.

Team Supervision and Training 

• Supervise plant operators and samplers.
• Conduct shift handovers and ensure clear communication of production goals and issues.
• Provide on the job training for operators on gravity separation principles, safety and equipment handling.

Safety and Compliance

• Enforce company safety standards, LOTO procedures and PPE use.
• Conduct safety toolbox meetings and ensure incident reports are properly documented.
• Ensure environmental compliance (e.g. tailings disposal and water management.

Reporting and Administration

• Submit Daily production and performance report to the metallurgist.
• Maintain accurate shift logs, downtime reports and maintenance requests.

7. Job Requirements: The Plant Supervisor should have the following education,

experience and Skills:

1. Diploma or Degree in Metallurgical Engineering/Material Science Engineering/Mining Engineering.
2. 3-5 years of experience in a gravity processing plant (tin, tungsten, tantalum)
3. Strong understanding of gravity separation principles and plant flowsheets.
4. Experience in supervision, safety leadership and production reporting.
5. Basic computer literacy (MS Excel, Word etc.)
6. Trustworthy and have sober habits
7. Basic mathematical and writing skills
8. Supervisory skills
9. Be able to work within a Team environment
10. Professionalism, Positive Attitude and Excellent communication skills at least in English.

Equal Opportunity Employer

Trinity Musha Mines Ltd values diversity and inclusion. We welcome applications from all qualified candidates regardless of gender, ethnicity, disability, or background.

HOW TO APPLY:

Applications should be submitted no later than Tuesday 27th October 2026 at 4 PM. Please click on

Apply Here. Applications sent through other channels will be rejected.

Indicating which position, you are applying for and addressed to the General Managerof Trinity Musha Mines Ltd. For other inquiries please contact the HR office on 0788525141/0788361758. Only applicants fulfilling the requirements will be contacted. 

Done at Musha, on 14/10/2026.

Missionnaire Mbanza

General Manager

Trinity Musha Mines Ltd