Sanni Sunday Williams
Lagos
Summary
Proficient Lead Technical Support Engineer with expertise in troubleshooting, repairing and resolving complex solar system issues. Delivered high-quality technical support and enhanced team performance through effective communication and problem-solving. Spearheaded technical design and engineering of solar projects, ensuring compliance with industry standards and driving continuous service improvement.
Overview
18
18
years of professional experience
Work History
Lead Technical Support Engineer
Crown Micro Nigeria
Lagos, Nigeria
03.2025 - Current
- Lead and manage the technical design and engineering of solar projects, ensuring all aspects of system design to meet industry standards and client requirements.
- Diagnose and repair solar hybrid inverter and lithium battery systems on site or remotely.
- Solve complex problems with potential to negatively impact users at specific locations and impede productivity.
- Serve as the go-to expert for installers facing challenges during installation.
- Responded promptly to technical issues raised by installers or customers, ensuring timely resolution.
- Offer step-by-step technical support, either on-site, via phone, or via video call.
- Provided clear guidance to installers during installation and configuration.
- Review installation errors and provide recommendations to prevent recurrence.
- Collaborate with technical support engineers on technical issues and repairs.
- Train technical support engineer on best practices and standard procedures.
- Closely monitor and analyze trending product and service-related issues, and offer recommendations for management, product and service improvement.
- Ensured high standards by liaising between support team and other departments.
- Travelled to various worksites to troubleshoot and repair systems, delivering effective diagnostic support.
- Maintained comprehensive logs of issues encountered and solutions provided, enhancing future troubleshooting efforts.
- Collected data on equipment performance for project analysis.
Technical Support Manager
Proton Power System (Contract staff)
Lagos, Nigeria
02.2025 - Current
- Supervise and guide technical teams through all phases of solar project development, including pre-sales installation, and commissioning.
- Provide on-site technical support for installations, troubleshooting, and commissioning activities.
- Delivered technical expertise and support to internal teams and clients on solar system integration, performance, and optimisation.
- Ensure effective operation and maintenance protocols for solar systems, including post-installation support and warranty management.
- Diagnose and resolve faults based on technical knowledge and use of pre-scripted repair trees.
- Troubleshoot technical issues on ups, solar inverters and lithium-ion batteries.
- Diagnosing and repairing faults on ups, solar inverters and lithium-ion batteries.
- Assisted installers and end users via telephone to diagnose and triage technical problems.
- Guided customers through a series of actions to resolve technical issues via phone or WhatsApp.
- Speak to customers to quickly get to the root of their problem and prefer solution to both installers and end users.
- Excel individually and serve as a team player to resolve issues during power outages.
- Maintain detailed records of daily support activities and resolutions.
- Follow up with clients to ensure the problem is resolved.
- Restore performance by completing basic repairs on inverter and lithium-ion batteries.
- Obtain information to write a thorough, detailed problem description.
- Provide product feedback to development and marketing.
Technical Manager
Smksolar Technology Nigeria Limited
Lagos, Nigeria
09.2022 - 08.2023
- Lead and managed the technical design and engineering of solar projects, ensuring all aspects of system design meet industry standards and client requirements.
- Project management of solar PV projects working with internal teams, appointed specialist contractors, regulatory bodies (planning, structural) and clients.
- Supervised and guided technical teams through all phases of solar project development, including pre-sales, design, installation, and commissioning.
- Provided technical expertise and support to internal teams and clients regarding solar system integration performance, and optimization.
- Enhanced team's work quality through targeted training initiatives and recruitment of highly qualified candidates for key roles.
- Maintained high technical standards by regularly reviewing, analyzing, and correcting team.
- Championed best practices and established delivery standards, ensuring consistency and quality in project execution.
- Developed cohesive presentations customized for technical and non-technical audiences.
- Proposed conceptual technical solutions within agile environment and made changes based on client feedback.
- Acted as subject matter expert on solar and battery storage installation, reviewing and signing off solar designs and answering challenging technical queries from the sales team.
- Worked with the Product and Engineering teams to design and build tools to assist with the surveying and installation of solar PV and battery storage.
- Liaised with clients and internal teams on solar technical matters and advice.
- Managed large and diverse range of installation partners to deliver a great experience for both partners and customers (higher availability, faster speeds, etc.).
- Facilitated portfolio instruction coordination and executed other duties when needed.
- Site surveys for solar PV appraisal including roof, electrical and health and safety considerations to assist with de-risking client projects.
- Trained employees on how to install solar inverters, lithium-ion batteries and AVR/stabilizers with repairs.
- Oversaw daily technical activities, ensuring smooth and efficient workflows.
- Developed and implemented technical operations strategies that streamlined workflows and optimised resource utilisation.
- Established standard operating procedures for key technical tasks and processes.
- Ensured compliance with industry regulations for all aspects of technical operations.
- Maintained detailed logs of repair, maintenance and installation jobs.
- Located faults in electrical systems through effective line testing.
- Connected components and wiring with good soldering and welding abilities.
- Analyzed system failures to prevent recurrence.
- Trained junior technicians in proper procedures and safety protocols.
- Maintained detailed records of work performed, time spent, and expenses incurred.
- Provided customer support for technical issues, achieving high satisfaction ratings.
- Implemented energy-saving measures in electrical installations.
- Documented procedures and findings for future reference.
- Coordinated with team members on large-scale projects, ensuring timely completion.
Workshop Technician
Pragmatic Technologies Limited
Lagos, Nigeria
03.2017 - 09.2022
- Repaired solar hybrid Inverter, transformer-based inverter, AVR, advanced AVR and other related equipment up to PCB level.
- Provided high-level technical support for our solar hybrid inverters and associated battery energy storage systems (BESS) to customers and field technicians, both remotely and in-house.
- Facilitated equipment and materials preparation for learning by providing technical assistance and practical support, enhancing technician readiness.
- Conducted comprehensive diagnostics, repair, and testing of faulty inverters and circuit boards at our service center.
- Perform detailed failure analysis on returned products to identify systemic issues and provide valuable feedback to our R&D and product development teams.
- Maintain meticulous records of all service activities, test results, and repairs in our system, ensuring data accuracy and clarity.
- Became a subject matter expert on all Pragmatic technologies’ solar hybrid inverters, transformer-based inverter, AVRs, batteries, and charging systems, stayed up-to-date with both new and legacy products.
- Assisted in developing and delivering technical training sessions to upskill our field technicians and service center staff.
- Assembled, installed, tested, and maintained electrical or electronic wiring, equipment, appliances, apparatus, and fixtures, using hand tools and power tools.
- Diagnosed malfunctioning systems, apparatus, and components, using test equipment and hand tools, to locate the cause of breakdown and correct the problem.
- Established electrical connections to circuit breakers and transformers for system functionality.
- Inspected electrical systems, equipment, and components to identify hazards, defects, and the need for adjustment or repair, and to ensure compliance with codes.
- Advised management on weather continued operation of equipment could be hazardous.
- Tested electrical systems and continuity of circuits in electrical wiring, equipment and fixtures, using testing devices such as multimeters to ensure compatibility and safety of the system.
- Ensure all repaired units pass rigorous quality assurance checks before being deployed back into service.
- Uphold the highest standards of safety by ensuring all work complies with electrical codes and manufacturer protocols.
- Planned repair work using diagrams, blueprints and schematics.
- Managed inventory of tools, parts, and supplies for workshop.
- Trained new technicians in proper procedures and safety guidelines.
- Transferred skills and knowledge to junior staff through training and apprenticeship.
- Improved equipment function through effective troubleshooting and problem correction, contributing to operational reliability.
- Demonstrated exceptional problem-solving skills when faced with challenging repair situations.
- Maintained detailed records of all completed work orders for future reference.
- Prioritized daily workload based on customer needs and deadlines set by management.
- Ensured clean and organized workspace to promote efficiency and safety.
Assistant Regulating & Metering Station Operator (Contract staff)
West African Gas Pipeline Company Limited (WAPCO)
Lagos, Nigeria
11.2012 - 02.2016
- Monitored process plant equipment, and indicators to detect evidence of operating problems.
- Performed daily condition monitoring on process parameters and equipment’s, e.g. pressure gauge, temperature gauge, fuel gas skid, gas scrubber, gas gen, diesel gen, flow meters, moisture analyzer etc.
- Documented daily logs, including PTW logs and other station records, to maintain accurate operational and safety information.
- Executed startup and shutdown procedures for plant equipment, ensuring operational readiness and compliance with safety protocols.
- Evaluated alarm conditions as they occur and determined the proper course of action to correct the alarm conditions.
- Performed general maintenance on Gas gen, Black start and pressure washer machine.
- Acted on own initiative to identify and corrected work place hazards, unsafe practices, security violation or environmental concerns.
- Controlled valves, process operations through PLC, DCS and SCADA software.
- Assisted operators to introduce liquid into the gas scrubber using the SOP.
- Oversaw issuance of permits to work (PTW) for contractors, ensuring strict adherence to safety standards as Area Authority.
- Performed LOTO on stations equipment both inside ABB module and in process areas.
- Acted as Area Authority for lock out/ tag out procedures for piping and equipment repairs.
- Assisted I&E personnel to troubleshoot and resolved power outage in the facility.
- Assisted I&E personnel to carry out calibration on field instruments.
- Managed equipment status changes and secured equipment following safety procedures when repairs were necessary.
- Generated, reviewed & implemented Safe Operating Procedure (SOP) with team members.
- Followed all safety regulations in order to avoid potential hazards or obstructions, such as utility lines, other equipment and to ensure the safety of other workers and team members.
- Inspected fire and other safety equipment and systems to ensure that they are functional and operational.
- Communicated effectively with team members and supervisor on technical levels.
- Executed housekeeping and general maintenance duties to uphold cleanliness and operational efficiency within the plant facilities.
Compressor Station Operator (Industrial Training)
West African Gas Pipeline Company Limited (WAPCo)
Lagos, Nigeria
08.2010 - 08.2011
- Monitored and ensured the safe operation and maintenance of all plant and field equipment.
- Performed condition monitoring on process parameters e.g. temperature, pressure, air compressors, gas turbines gas gen, diesel gen, level gauges and ABB module equipment and reported any AOCs to the station supervisor.
- Acted as a gas tester to sniff gas leakage before and after any task has been carried out for gas leakage in SIMOPS area and also performed daily bump test on gas detectors.
- Worked with other team members and contractors in performing equipment startup and shutdown, daily operations and maintenance work process.
- Aided in creating maintenance work orders, minimising production loss and reducing downtime.
- Complied with all regulatory, environmental, and safety rules & standards as well as company policies.
- Participated and contributed to daily safety meetings and monthly HSE safety meetings.
- Effectively conveyed information via handheld radio to team members for process adjustment.
- Observed machine operations to ensure quality and conformity to standard.
- Compiled daily reports and communicated total gas flow to controller in Accra, Ghana.
- Completed daily reports both manually and electronically.
- Performed duties to uphold cleanliness and safety standards within the facility.
Electrician Apprentice (Student Industrial Work Scheme)
Dosa David Electrical Company Limited
Lagos, Nigeria
12.2008 - 03.2009
- Identified problems with electrical systems and equipment, troubleshooting functions and tracing faults.
- Investigated causes of electrical system failures under supervision, contributing to effective troubleshooting.
- Helped identify underlying problems in electrical systems to facilitate effective solutions.
- Located and diagnosed trouble in electrical wiring and malfunctioning; switches, outlets, fixtures and circuit breakers.
- Repaired and replaced faulty wiring and lighting fixtures.
- Installation and commissioning of 25 spans of high-tension pole (HT Poles) at Onipamesan, Ogun state.
- Interpreted design plans to determine necessary tasks for project execution.
- Drilled holes and pull/ push wiring through openings, using hand and power tools.
- Ensured incoming and outgoing materials are accounted for by a complete appropriate and accurate document.
- Adhered to safety processes and procedures, ensuring a safe working environment during electrical work.
- Kept materials in proper locations to ensure an orderly and efficient workspace.
Education
National Youth Service Corp (NYSC) -
01-2013
Higher National Diploma - Electrical Electronics Engineering
Ogun State Institute Of Technology lgbesa
Igbesa, Ogun State01-2012
National Diploma - Electrical Electronics Engineering
Ogun State Institute Of Technology lgbesa
Igbesa, Ogun State01-2009
Senior Secondary School Certificate - WAEC
Odofa Private Secondary School
Morogbo, Agbara01-2005
Skills
- Electrical & Electronics knowledge
- Photovoltaic
- Solar power
- Technical knowledge
- Analytical skills
- Technical support
- Operation & control
- Problem solving skills
- Troubleshooting
- Diagnose & Repair
- Team player
- Safe practices
- Communication skills
References
- Huleji Sunday, HOO (Crown Micro global Nigeria), 07030883611
- Mr Muhammed Bashiru, HOD (Pragmatic technology Ltd), 08035035485
Training
- Health and Safety Environment Training, West African Gas Pipeline Company, 2015
- Operator Qualification exam (OQ), Mid-West Energy Association Organized by WAPCo, 2014
- Training on Override of Critical Protection System, West African Gas Pipeline Company, 2013
- Automatic External Defibrillator training (AED), West African Gas Pipeline Company, 2012
- Basic Electrical Safety training, West African Gas Pipeline Company, 2011
Timeline
Lead Technical Support Engineer
Crown Micro Nigeria
03.2025 - Current
Technical Support Manager
Proton Power System (Contract staff)
02.2025 - Current
Technical Manager
Smksolar Technology Nigeria Limited
09.2022 - 08.2023
Workshop Technician
Pragmatic Technologies Limited
03.2017 - 09.2022
Assistant Regulating & Metering Station Operator (Contract staff)
West African Gas Pipeline Company Limited (WAPCO)
11.2012 - 02.2016
Compressor Station Operator (Industrial Training)
West African Gas Pipeline Company Limited (WAPCo)
08.2010 - 08.2011
Electrician Apprentice (Student Industrial Work Scheme)
Dosa David Electrical Company Limited
12.2008 - 03.2009
National Youth Service Corp (NYSC) -
Higher National Diploma - Electrical Electronics Engineering
Ogun State Institute Of Technology lgbesa
National Diploma - Electrical Electronics Engineering
Ogun State Institute Of Technology lgbesa
Senior Secondary School Certificate - WAEC
Odofa Private Secondary School