DENIS AUMA
GEITA,TANZANIA
Summary
As a hard-working Senior Supervisor, Geita Gold Mining has equipped me with exceptional experience leading teams, delivering results and exceeding expectations. I am Creative and motivated leader adept at utilizing exceptional design and planning strengths to accomplish complex projects. Skilled in teaching new concepts and best practice maintenance strategies at a minimum budget as possible without compromising quality of output.
Overview
10
10
years of professional experience
1
1
Certification
Work history
Senior Supervisor Light Vehicle Maintenance
Geita Gold Mining Limited
Geita, Tanzania
05.2021 - 06.2026
- Oversee light vehicle maintenances to ensure it is done to quality standards.
- Preparation and monitoring of maintenance budget on monthly basis to make sure all expenditures are aligned with the approved budget.
- Develop maintenance planning strategy for light vehicles to ensure all maintenance tasks are planned to reduce breakdowns and save downtime.
- Capital projects analysis, budget evaluation and presentation on each budget year.
- Played a pivotal role in driving change management initiatives that resulted in seamless adoption of new policies or procedures guiding light vehicle maintenance process.
- Enforces company values from Supervision to execution level.
- Strengthened cross-functional collaboration, leading to more cohesive teamwork and better overall results.
- Fostered effective communication by providing constructive feedback and sharing knowledge across business lines.
- Conducted thorough quality assurance checks on light vehicle maintenance and maintaining high standards of output across all deliverables.
- Recruited, hired and trained staff and provided ongoing feedback and performance evaluations for development.
- Resolved conflicts proactively by facilitating open communication among team members and actively addressing underlying issues.
- Enhanced team productivity by implementing efficient workflow processes and providing consistent guidance.
- Implemented cost-saving initiatives, reducing operational expenses without compromising quality or productivity.
Heavy Duty Mechanic
Geita Gold Mining Limited
Geita, Tanzania
11.2016 - 04.2021
- Diagnosed faults or malfunctions to determine required repairs, using engine diagnostic equipment.
- Established a reputation for exceptional problem-solving skills, acting as a go-to resource for colleagues encountering complex mechanical issues in the field.
- Increased efficiency in the workplace by consistently organizing tools, equipment, and workspaces for optimal productivity.
- Scheduled maintenance for industrial machines and equipment and kept equipment service records.
- Reduced downtime of essential equipment through timely diagnosis and repair of mechanical issues, ensuring smooth operations at all times.
- Improved equipment reliability by conducting thorough inspections and preventative maintenance on heavy-duty machinery.
- Fitted bearings to adjust, repair, or overhaul mobile mechanical, hydraulic and pneumatic equipment.
- Developed expertise in hydraulic systems for improved troubleshooting capabilities, leading to quicker resolution of issues faced during maintenance tasks.
- Cleaned, lubricated and performed other routine maintenance work on machines.
- Maintained compliance with regulatory requirements through proper disposal of hazardous waste materials and adherence to environmental standards.
- Assisted clients in understanding their equipment''s maintenance needs while providing recommendations for optimal performance over time.
- Promoted a culture of continuous improvement within the team by sharing knowledge gained from professional development opportunities with colleagues at regular intervals.
- Enhanced workshop safety by implementing strict adherence to standard operating procedures and guidelines for all team members.
- Collaborated effectively with colleagues on challenging projects, pooling expertise to achieve successful outcomes together.
- Expedited repairs by utilizing advanced diagnostic tools.
- Upheld a record of minimal equipment failures due to meticulous attention to detail and thorough execution of preventative measures.
- Tested mechanical products and equipment after repair or assembly for proper performance and compliance with manufacturers' specifications.
- Supported the efficient operation of mobile cranes, dozers, backhoes, wheel loaders and dump trucks ensuring all components were in optimal condition and adhering to safety guidelines during use.
- Contributed to cost savings by accurately identifying necessary replacement parts and submitting new ideas to save cost. example i presented the idea to reduce lube cost by implementing oil recycle system on heavy mining equipments.
- Streamlined inventory management with meticulous record-keeping, enabling easy tracking of parts usage and timely reordering.
- Selected hand tools, power tools and precision measuring instruments according to task requirements.
- Diagnosed and repaired hydraulic and electrical systems to maintain equipment function.
- Troubleshot equipment malfunctions utilizing diagnostic tools and technical manuals.
- Analyzed malfunctioning equipment and determined type of repairs required.
- Removed worn or faulty components for replacement or repair.
- Replaced defective wiring systems, hydraulics, and braking systems to return machines to service.
- Developed preventative maintenance plans to limit operational disruption.
- Read and understood technical drawings, schematics, and manuals in order to make accurate updates.
- Changed oils, inspecting brakes and replace filters to perform preventive maintenance services on heavy equipment such as dozers, backhoes, wheel loaders and dump trucks..
- Performed routine maintenance and repairs on heavy equipment such as dozers, backhoes, wheel loaders and dump trucks.
Education
Bachelor of Science - Mechanical Engineering
University of Dar Es Salaam
Dar Es Salaam, TanzaniaAdvanced Certificate of Secondary Education - Physics, Chemistry And Mathematics
Mtwara Technical High School
Mtwara, TanzaniaCertificate of Secondary Education - Ordinary Level Education
Malampaka Secondary School
Malampaka, TanzaniaSkills
- Conflict resolution - With team of over twenty (20) people under my watch there will always be conflicts and misunderstandings among staff but my four years as Senior Supervisor has taught me good lessons about engagement with team to solve different conflicts using company procedure as guideline
- Certified Project management Professional (PMP®)
- Purchasing operations
- Knowledge of erp systems
- Leadership excellence
- Ethical conduct
- Decision-Making proficiency
Accomplishments
- Supervised team of six (06) staff members in conducting major rebuild of four dump trucks.
- Achieved an award of recognition as best safety performer by completing performing quality work place inspection and conducting quality individual risk assessment and planned task observation in three consecutive quarters in 2019.
- Collaborated with team of Light Mining Equipment (LME) Maintenance Superintendent in the development of all necessary working procedures such as LME work management process procedure, working tools management procedure, key control procedure, destruction and disposal of non reusable spare parts procedure (this solved the problem of used spare parts theft at LME) and others.
Certification
- Certified Project management Professional (PMP®).
- Wheel loader 992K maintenance course Certification
- CAT Preventive Maintenance and Machine Inspections Certificate by Mantrac Tanzania.
- R2900G Underground wheel Loader Machine Maintenance
- Caterpillar Undercarriage maintenance and Service Information System (SIS) application training by Mantrac Tanzania.
- D10T Machine Maintenance.
- Certificate of Competence - Basic Rigging Procedures by D'Dingwe Training Consultants (PTY) Ltd.
Watching soccer, reading novels
Watching soccer as part of refreshment during my free time.
Reading Novels for self motivation and critical thinking training.
Languages
Swahili
English
Timeline
Senior Supervisor Light Vehicle Maintenance
Geita Gold Mining Limited
05.2021 - 06.2026
Heavy Duty Mechanic
Geita Gold Mining Limited
11.2016 - 04.2021
Advanced Certificate of Secondary Education - Physics, Chemistry And Mathematics
Mtwara Technical High School
Certificate of Secondary Education - Ordinary Level Education
Malampaka Secondary School
Bachelor of Science - Mechanical Engineering
University of Dar Es Salaam