Ajayi Samuel Timilehin
Senior Service Engineer
Kosofe
Summary
Electrical Maintenance Professional with over five years of experience in preventive and corrective maintenance, troubleshooting, commissioning, and repair of industrial electrical systems across the oil & gas, manufacturing, cement, and power sectors. Experienced in maintaining variable frequency drives (VFDs), soft starters, electric motors, transformers, switchgear, UPS systems, and low-voltage power distribution equipment. Skilled in electrical fault diagnosis, equipment reliability, root cause analysis, electrical testing, and interpreting electrical drawings and control logic. Proven ability to lead maintenance teams, mentor junior engineers, and deliver safe, high-quality technical solutions while minimizing plant downtime. COREN Registered Engineer with BOSIET certification and experience supporting critical industrial operations.
Overview
10
10
Certifications
5
5
years of professional experience
Work History
Senior Service Engineer- Power & Drives
Greenpeg Nigeria Ltd.
04.2026 - Current
- Lead installation, commissioning, troubleshooting, and repair of motion control systems, drives, and industrial electronics across multiple OEMs (Siemens, SEW, Schneider, Danfoss, ABB).
- Lead multidisciplinary teams in the execution of electrical maintenance, troubleshooting, commissioning, and repair activities across industrial and oil & gas facilities.
- Coordinate field activities, allocate work, and provide technical guidance to engineers and technicians while ensuring compliance with HSE requirements.
- Perform preventive and corrective maintenance on VFDs, soft starters, electric motors, transformers, switchgear, UPS systems, and LV electrical distribution equipment.
- Diagnose and resolve complex electrical faults through systematic troubleshooting and root cause analysis, improving equipment reliability and reducing downtime.
- Conduct electrical inspections, testing, commissioning support, and equipment performance verification.
- Supervise motor rewinding, equipment repairs, and earthing system installations.
- Mentor junior engineers and technicians while supporting continuous improvement initiatives and knowledge sharing.
- Liaise with customers and multidisciplinary teams to deliver reliable maintenance solutions within project schedules.
Service Engineer – Power & Drives
Greenpeg Nigeria Ltd.
04.2023 - 03.2026
- Executed preventive maintenance, troubleshooting, installation, repair, and commissioning of industrial electrical equipment.
- Maintained Siemens, Schneider Electric, ABB, SEW-Eurodrive, Danfoss, and Rockwell drive systems.
- Diagnosed electrical and control system faults using electrical drawings, OEM software, and testing instruments.
- Maintained electric motors, motor control systems, soft starters, and electrical panels to improve equipment performance.
- Supported maintenance and commissioning activities on industrial electrical installations across oil & gas, manufacturing, and cement plants.
- Collaborated with engineering and operations teams to improve equipment reliability and operational efficiency.
Service Engineer
Simba industries limited
08.2022 - 03.2023
- Manage the repair, servicing, and preventive maintenance of inverters and online UPS systems, ensuring uninterrupted power supply for clients.
- Diagnosed and resolved faults in electrical installations, ensuring efficient and safe restoration of systems.
- Installations of Inverters, and Batteries on customer sites.
- Troubleshoot and Repair Surge Protection and AVR systems (Class-1, Class-2 & Class-1/-2 Compactable), ensuring optimal performance and protection against voltage spikes.
- Carried out testing and performance assessments of AGM/SMF/Tubular Batteries, providing detailed reports to guide maintenance or replacement
- I perform Basic printed circuit board (PCB) repairs for Luminous and Genus systems, restoring functionality with accuracy and precision.
Motor rewinder/field service tech
Oscar dynamics technology.
06.2021 - 02.2022
- Repair and rebuild defective mechanical parts in electric motors, generators, and related equipment, using hand tools and power tools.
- Inspect and test equipment in order to locate damage or worn parts and diagnose malfunctions, or read work orders or schematic drawings to determine required repairs.
- I Rewind coils on cores in slots, or make replacement coils, using coil-winding machines.
- I diagnose issues, propose effective solutions, and repair electric motors, pumps, controls, and generators, providing on-site support to minimize downtime.
Technical Instructor (Basic Electronics) NYSC.
Government Technical College EWET, Uyo
03.2021 - 02.2022
- Teaching and supervision of students using course materials on circuit theorem, practical demonstrations and group discussions.
- Organize laboratory workshop sessions, seminars using real life application case studies
- Organized and supervised independent group projects on wiring diagram with circuit loads
Education
Master's in Business Administration (MBA) -
Ahmadu Bello University
Zaria01-2027
Bachelor of Engineering - Electrical & Electronics Engineering
Ekiti State University
Ado Ekiti01-2021
No Degree - Prince Tech Technical Services (Electrical Installation and Motor rewinding)
Prince Tech Electricals
Lagos 04.2001 -
Skills
Electrical control systems design
Project coordination
Systems completion & commissioning
Troubleshooting & maintenance
Preventive & Corrective Maintenance
Electrical Troubleshooting & Fault Diagnosis
HV/LV Power Distribution Systems
Variable Frequency Drives (VFDs)
Soft Starters
Transformers & Switchgear
Electrical Protection Systems
Electrical Testing & Commissioning
Root Cause Analysis
Equipment Reliability
Industrial Automation
Electrical Drawings Interpretation
Leadership & Team Coordination
Drive installation
Electric Motors & Motor Control
Motor rewinding
Preventive maintenance
Technical reporting
Customer technical support
Permit to Work (PTW)
Lock Out/Tag Out (LOTO)
HSE Compliance
Technical Reporting
Certification
GH180 Perfect Harmony Drives (Medium Voltage). South Africa. 2026
Timeline
Senior Service Engineer- Power & Drives
Greenpeg Nigeria Ltd.
04.2026 - Current
Service Engineer – Power & Drives
Greenpeg Nigeria Ltd.
04.2023 - 03.2026
Service Engineer
Simba industries limited
08.2022 - 03.2023
Motor rewinder/field service tech
Oscar dynamics technology.
06.2021 - 02.2022
Technical Instructor (Basic Electronics) NYSC.
Government Technical College EWET, Uyo
03.2021 - 02.2022
No Degree - Prince Tech Technical Services (Electrical Installation and Motor rewinding)
Prince Tech Electricals
04.2001 -
Master's in Business Administration (MBA) -
Ahmadu Bello University
Bachelor of Engineering - Electrical & Electronics Engineering
Ekiti State University