Mandla Ngwenya
Lab Assistant
Cape Town
Summary
Experienced Maintenance Technician with a strong background in preventive maintenance, electrical troubleshooting, HVAC systems, and building repairs. Known for reducing downtime, improving safety, and keeping facilities running efficiently.
Hands-on maintenance professional with 15+ years of experience across service, building, and equipment repair. Skilled in mechanical troubleshooting, plumbing, electrical work, and HVAC maintenance. Recognized for solving problems quickly, and supporting safe, reliable operations.
Overview
19
19
years of professional experience
Work History
Maintenance Technician
Citra South Africa (Pty) Ltd
01.2023 - 08.2026
- Monitored and documented work performance in maintenance logs in compliance with company guidelines.
- Inspected facility systems, identifying repairs needed across electrical, plumbing, HVAC, and building infrastructure.
- Repaired doors, fixtures, wiring, and plumbing components, maintaining safe, functional workspaces.
- Inspected buildings, grounds, and equipment for unsafe or malfunctioning conditions.
- Performed scheduled maintenance on electrical, plumbing, and HVAC systems.
- Used standard housekeeping equipment, tools, and supplies to accomplish basic cleaning.
- Supported facility renovations by assisting with demolition, construction, and installation tasks as needed.
- Conducted routine assessments of plumbing systems to identify leaks or potential issues before they escalate into costly damages.
- Ensured safety compliance by conducting regular inspections and addressing potential hazards promptly.
- Increased energy efficiency with installation of LED lighting and automation controls.
- Repaired and replaced pumps, valves and motors.
- Inspected, tested and adjusted mechanical and electrical systems to facilitate proper functioning.
- Continuously adhered to strict regulations as well as detailed instructions, guidelines and specifications.
- Performed preventive maintenance and repairs on various types of equipment.
- Rewired and replaced faulty electrical components in equipment.
- Diagnosed and repaired complex mechanical and electrical systems.
- Installed and maintained plumbing and HVAC systems.
- Executed tasks within time and budget constraints.
- Reported issues to property manager so effective resolutions could be put into place.
- Removed trash and recyclables at end of each shift and disposed of items in proper receptacles.
- Replaced worn or broken parts on machines and equipment.
- Followed instructions from supervisor regarding daily job tasks and duties.
- Improved air quality by implementing comprehensive maintenance plan for ventilation systems.
Finishing Supervisor
Raubex Infra
01.2016 - 09.2021
- Supervised finishing crews to ensure surface quality, alignment, and compliance with project specifications.
- Coordinated daily finishing activities, prioritizing tasks to maintain workflow and reduce rework.
- Inspected completed work for defects, rectifying issues before handover to project management.
- Reported injuries and incidents and submitted supporting documentation to facilitate company investigation.
- Supervised and supported employees by overseeing production, submitting work hours, processing time off requests and performing evaluations to maximize department productivity and efficiency.
- Resolved any equipment issues promptly, minimizing downtime and ensuring consistent workflow throughout the finishing process.
- Streamlined workflow processes to increase productivity, leading to faster project turnaround times.
- Reduced waste and increased output by optimizing material usage in the finishing department.
- Fostered collaboration by overseeing and directing polishing, painting and coating activities.
- Supervised ongoing daily production phases.
- Managed staff hiring, training and supervision.
- Located and resolved problems with team production and performance to maintain consistent quality levels.
- Planned, organized and monitored resources to deliver efficient use of labor, equipment and materials.
- Monitored daily and weekly key performance indicators to maintain on-track status.
- Troubleshot equipment to reduce service calls and downtime.
- Interpreted work order information and specifications to plan, schedule and complete jobs precisely.
- Oversaw loading and unloading of packages in warehouse.
- Coordinated project workflows for departments.
- Enhanced processes by pinpointing bottlenecks and working with supervisor to resolve.
- Coordinated merchandising, promoted new products and increased brand awareness.
- Strengthened performance metrics tracking and analysis to enhance tactical and strategic company plans.
Maintenance Technician
Raubex Infra
01.2013 - 12.2015
- Performed preventive maintenance on plant, equipment, and site assets to support uninterrupted operations.
- Diagnosed mechanical and electrical faults, restoring equipment functionality with minimal downtime.
- Inspected machinery, identified wear issues, and completed corrective repairs before failures occurred.
- Repaired hydraulic, pneumatic, and power systems to maintain safe operating conditions.
- Improved equipment reliability through consistent troubleshooting, servicing, and timely part replacement.
- Operated varied hand and power tools to complete repairs.
- Troubleshot equipment breakdowns and performed preventive maintenance.
- Followed work orders and specifications for machine and equipment replacement, repair, or maintenance.
- Followed safety protocols to minimize workplace accidents.
- Inspected and maintained equipment to keep items in top working condition.
- Completed daily, weekly, and monthly checklists on building equipment to maintain records of scheduled maintenance procedures.
- Successfully completed complex repair tasks within tight deadlines, minimizing disruptions to daily operations.
- Improved equipment functionality by conducting regular maintenance checks and repairs.
- Collaborated with team members to complete larger repair projects efficiently.
- Reduced downtime by quickly diagnosing and resolving technical issues on machinery.
- Performed electrical and mechanical repairs of production equipment to minimize downtime.
- Installed new locks, door handles, and door closers.
- Minimized production delays, responding swiftly to emergency breakdowns or unexpected malfunctions.
- Enhanced safety measures by performing routine inspections and identifying potential hazards.
- Maintained restroom functionality by repairing leaking faucets, clogged toilets, and other equipment.
- Ensured smoother operations, maintaining accurate records of all maintenance activities.
- Streamlined communication with other departments, ensuring maintenance issues were addressed in timely manner.
Service Technician
Siphambili (Pty) Ltd
11.2010 - 12.2013
- Troubleshot recurring equipment failures and recommended preventive maintenance actions.
- Mentored junior technicians on safety practices, troubleshooting steps, and quality standards.
- Consistently met project deadlines under pressure situations while maintaining high-quality workmanship standards.
- Responded to problems reported by customers by troubleshooting and resolving hardware and software issues.
- Maintained detailed records of service calls, enabling better tracking of recurring issues and proactive solutions implementation.
- Stayed up-to-date on industry advancements through continuous learning initiatives, enhancing overall skillset and expertise.
- Received consistent positive feedback from customers, reflecting dedication to delivering exceptional service quality.
- Maintained accurate records of service calls and customer interactions for training and accountability purposes.
- Enhanced client retention through exceptional communication skills and a commitment to addressing concerns promptly.
- Streamlined processes for troubleshooting, resulting in faster resolution times and improved customer experiences.
- Spearheaded project to standardize maintenance procedures, resulting in more consistent service outcomes.
- Conducted detailed inspections of equipment to identify potential issues, preventing costly future repairs.
- Improved team collaboration by sharing expert knowledge on complex repair techniques during weekly meetings.
- Facilitated smoother operations within team by organizing schedules and assigning tasks based on skill levels.
- Streamlined inventory management for parts and supplies, maintaining optimal stock levels to prevent project delays.
- Enhanced client trust, providing transparent and easy-to-understand explanations of technical issues and solutions.
- Enhanced safety protocols by implementing rigorous checks, significantly reducing workplace accidents.
- Managed maintenance activities, supervised staff, and inspected equipment.
Service Technician
Electro Plumb
06.2007 - 10.2010
- Diagnosed plumbing and electrical service issues, isolating faults quickly for accurate repairs.
- Repaired pumps, fixtures, wiring, and controls to restore safe, reliable operation.
- Inspected systems for leaks, damage, and code compliance before completing service work.
- Installed replacement components, using hand tools and diagnostic equipment for precise fitment.
- Explained diagnostic findings to customers and outlined repair or service options.
- Installed new equipment and explained operation and routine maintenance protocols to customers.
- Inspected equipment to diagnose operational issues.
- Diagnosed and troubleshot problems, repairing, and restoring machines to peak performance.
- Effectively communicated technical information to non-technical clients, ensuring proper understanding and utilization of equipment features.
- Responded to customer inquiries quickly and professionally to increase satisfaction.
- Collaborated with team members to complete complex installations, ensuring seamless integration of new systems.
Education
High School Diploma -
Lephafuhile
Mamelodi, South Africa 04.2001 -
Skills
Preventive Maintenance
Building maintenance
Mechanical troubleshooting
Troubleshooting skills
Hand and power tools
Electrical troubleshooting
Mechanical repair
Parts replacement
Equipment Repair
Tool management
Hand tools expertise
Plumbing
Lockout and tagout procedures
Power tools proficiency
Plumbing repairs
HVAC systems
Hydraulic systems
Door hardware
System installations
Lighting systems
Commercial construction experience
Supply management
Residential construction
Air compressors
Motor controls
Pneumatic systems
Ventilation systems
Air filtration
Roofing
Blueprint and schematics
HVAC system maintenance
Flooring repair
Roof maintenance
Willing to learn
Critical thinking
Clear communication
Wiring installation and repair
Problem detection and resolution
General Plumbing
Timeline
Maintenance Technician
Citra South Africa (Pty) Ltd
01.2023 - 08.2026
Finishing Supervisor
Raubex Infra
01.2016 - 09.2021
Maintenance Technician
Raubex Infra
01.2013 - 12.2015
Service Technician
Siphambili (Pty) Ltd
11.2010 - 12.2013
Service Technician
Electro Plumb
06.2007 - 10.2010
High School Diploma -
Lephafuhile
04.2001 -