Company: BlueWave New Energy Technology Nigeria Company Limited
Location: Lagos
Job Type: Full Time , Onsite
Apply Before: 2026-08-03
Job Description
Department
Engineering and Technical Services
Reports To
Engineering Manager / Operations Manager
Supervises
Installation Engineers, Service Engineers, Technicians, and Subcontractors
Main Objective
Ensure every project is correctly designed, safely installed, properly commissioned, and delivered on time
This is a technical leadership position. The Engineering Supervisor must be able to supervise people and independently solve complex electrical, inverter, battery, and solar-system problems.
Key Responsibilities
Site Survey and Technical Assessment
Conduct technical site surveys for residential, commercial, and industrial projects.
Measure and record single-phase and three-phase voltage, current, load, power factor, and operating conditions.
Identify the customer’s critical loads, non-critical loads, maximum concurrent load, and starting-surge requirements.
Review electricity bills, generator capacity, diesel consumption, existing inverters, batteries, and solar systems.
Assess roof area, shading, equipment location, ventilation, cable routes, earthing, fire safety, and installation risks.
Confirm whether the proposed system can support the customer’s actual operating requirements.
Prepare complete site-survey reports, photographs, load schedules, and engineering recommendations.
System Design and Equipment Selection
Design residential and commercial solar and energy-storage systems.
Select the correct:
Inverter or PCS capacity
Battery capacity
Solar PV capacity
PV string configuration
Battery configuration
AC and DC cable sizes
MCCB, MCB, RCBO, SPD, fuse, isolator, ATS, and protection devices
Distribution board, combiner box, busbar, and earthing system
Calculate maximum concurrent load instead of simply adding all installed equipment.
Consider air-conditioner, refrigerator, pump, compressor, motor, and elevator starting current.
Design sequential-starting or load-shedding arrangements where necessary.
Review single-phase, three-phase, parallel-inverter, and phase-balancing requirements.
Ensure the proposed solution can be safely expanded in the future.
Installation Supervision
Assign engineers and technicians to installation projects.
Prepare installation plans, manpower requirements, tools, materials, and project timelines.
Supervise solar panels, inverters, batteries, distribution boards, protection devices, cables, and earthing installations.
Ensure all cables are correctly sized, terminated, labelled, supported, and protected.
Confirm correct polarity, phase sequence, torque, battery communication, and equipment settings.
Prevent unsafe temporary connections and unapproved modifications.
Check all work before the system is energized.
Ensure subcontractors follow BlueWave drawings, standards, and safety requirements.
Stop any unsafe or technically incorrect installation immediately.
System Commissioning
Lead the testing and commissioning of completed systems.
Verify:
Grid input
Generator input
Solar PV input
Battery charging and discharging
Inverter output
ATS and bypass operation
Communication between inverter, battery, BMS, and EMS
Protection settings
Remote monitoring
Load transfer
Backup operation
Emergency shutdown
Test the system under realistic customer loads.
Confirm that the system can support expected continuous and starting loads.
Record voltage, current, frequency, power, battery SOC, charging power, and operating results.
Complete and sign commissioning checklists before handover.
Train customers on system operation, safety, and basic fault response.
Fault Diagnosis and Technical Support
Diagnose faults involving:
Inverters
Lithium batteries
BMS communication
Solar PV strings
Grid and generator input
ATS and bypass systems
Overload and short-circuit protection
Earth faults
Voltage imbalance
Charging and discharging problems
Remote-monitoring systems
Identify the root cause of each fault instead of repeatedly replacing parts without proper diagnosis.
Review fault codes, system logs, electrical measurements, wiring, and equipment settings.
Provide remote technical guidance to engineers where appropriate.
Attend customer sites when problems cannot be resolved remotely.
Ensure customer complaints are resolved within the agreed service time.
Prepare technical fault reports and corrective-action plans.
Engineering Team Management
Supervise installation engineers, service engineers, technicians, and subcontractors.
Assign daily and weekly work based on priority, competence, and location.
Review job reports, site photographs, material usage, and customer feedback.
Conduct daily technical briefings and weekly performance reviews.
Train engineers on new products, installation standards, fault diagnosis, and safety.
Evaluate the technical competence of engineering staff.
Identify performance gaps and recommend retraining or disciplinary action.
Ensure engineers do not leave a customer’s site without completing required tests and documentation.
Build a culture of responsibility, quality, safety, and problem resolution.
Project Quality Control
The Engineering Supervisor must inspect and approve every major project stage:
Site survey
System design
Material preparation
Installation
Electrical testing
Commissioning
Customer handover
Post-installation inspection
The supervisor must ensure:
The installed system matches the approved design.
No unauthorized materials are used.
Protection devices are correctly selected.
Cable sizes are suitable for the current and installation distance.
Batteries and inverters are properly configured.
The installation is neat, safe, labelled, and serviceable.
All defects are corrected before customer handover.
Safety Management
Enforce electrical and workplace safety requirements.
Ensure engineers use appropriate personal protective equipment.
Conduct risk assessments before installation.
Enforce lockout, isolation, and testing procedures before electrical work.
Ensure safe ladder, roof, battery, cable, and lifting practices.
Prevent live work except where formally authorized and properly controlled.
Report accidents, near misses, unsafe conditions, and equipment damage.
Ensure lithium batteries are installed in suitable, ventilated, secure, and protected locations.
Confirm that fire extinguishers and emergency procedures are available where required.
Materials and Tools Control
Prepare accurate bills of materials for installations.
Confirm required materials before engineers leave for the site.
Ensure engineers use the correct tools and testing equipment.
Track materials issued, used, returned, damaged, or missing.
Prevent material wastage, unauthorized substitution, and theft.
Report defective products with proper technical evidence.
Coordinate with the warehouse and procurement teams to avoid project delays.
Engineering Documentation
The Engineering Supervisor is responsible for ensuring that every project has:
Customer load-assessment form
Site-survey report
Single-line diagram
Equipment schedule
Cable and protection schedule
Bill of materials
Installation checklist
Commissioning report
System settings record
Site photographs
Customer handover form
Warranty and maintenance record
Fault-resolution report where applicable
All technical records must be complete, accurate, and submitted on time.
Qualification Requirements
Education
HND or Bachelor’s degree in Electrical Engineering, Electronics Engineering, Power Engineering, Renewable Energy, or a related technical discipline.
Relevant professional or technical certification will be an advantage.
Experience
At least five years of practical electrical, solar, inverter, battery, or energy-storage experience.
At least two years of experience supervising engineers, technicians, or installation teams.
Proven experience delivering residential and commercial projects.
Experience with large commercial or industrial energy-storage systems is strongly preferred.
Mandatory Technical Competence
The candidate must have practical knowledge of:
Single-phase and three-phase electrical systems
220/230V and 380/400/415V systems
Hybrid and off-grid inverters
Inverter parallel operation
Three-phase inverter configuration
Low-voltage and high-voltage lithium batteries
BMS and inverter communication
PV string sizing and MPPT configuration
Cable sizing and voltage-drop calculation
MCCB, MCB, RCBO, fuse, SPD, isolator, ATS, and STS
AC and DC distribution systems
Earthing and lightning protection
Load assessment and maximum-demand calculation
Motor and compressor starting current
Generator integration
System commissioning and fault diagnosis
Electrical drawings and single-line diagrams
Excel, engineering reports, and technical documentation
Preferred Candidate Profile
The ideal candidate should:
Be technically strong and able to work independently.
Be able to identify mistakes before a system is energized.
Be comfortable managing multiple projects and engineering teams.
Be disciplined in documentation and reporting.
Be able to explain technical matters clearly to customers and staff.
Focus on solving the root cause of problems.
Be willing to visit project sites and respond to urgent technical issues.
Be honest, responsible, safety-conscious, and results-driven.
Be able to work under pressure without compromising quality.
Be willing to take responsibility for project outcomes.
Key Performance Indicators
KPI
Performance Standard
Projects completed within the approved schedule
At least 90%
First-time installation acceptance rate
At least 95%
Commissioning checklist completion
100%
Projects with complete technical documentation
100%
Customer technical complaints resolved within agreed time
At least 90%
Repeat faults caused by incorrect installation
Maximum 3%
Material variance or unexplained material loss
Maximum 2%
Safety compliance rate
100%
Serious safety violations
Zero
Engineer job-report submission rate
At least 95%
Preventive maintenance completed on schedule
At least 95%
Customer satisfaction after technical service
At least 90%
Performance Evaluation Areas
The Engineering Supervisor will be assessed on:
Technical accuracy
Project delivery speed
Installation quality
Fault-resolution ability
Safety compliance
Team productivity
Material control
Customer satisfaction
Documentation quality
Ability to prevent repeat problems
A project will not be considered successfully completed merely because equipment has been installed. It is only completed when the system operates correctly, safely supports the agreed loads, passes commissioning, and is accepted by the customer.
Compensation and Career Development
BlueWave offers:
Competitive monthly salary
Project-performance incentives
Technical training
Product training
Leadership-development opportunities
Career advancement based on performance
Career Path
Engineering Supervisor → Senior Engineering Supervisor → Engineering Manager → Head of Engineering / Technical Director
Employment and Compliance Requirements
Company tools, materials, drawings, customer data, and technical information must be protected.
Unauthorized private work using company customers, staff, tools, or materials is prohibited.
False reports, fake site visits, incomplete inspections, and unauthorized material substitutions are prohibited.
The supervisor must not approve an unsafe or incomplete installation.
All technical recommendations must be based on actual measurements, calculations, and approved standards.
Customer problems must be fully investigated and properly closed.
How to Apply
Interested and qualified candidates should forward the below to: hr@bluewave.top using the position as subject of email. Applicants should submit: Updated CV Current residential address Academic and technical qualifications Details of solar, inverter, battery, and electrical experience List of major projects completed Details of previous team-supervision experience Earliest available starting date
Build your CV for free. Download in different templates.
Source: MyJobMag