Engineering Supervisor

Job Summary 

• Due to continued business expansion, BlueWave is recruiting an experienced and technically capable Engineering Supervisor to lead installation, commissioning, maintenance, and technical-support activities.

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.

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%

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.

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.

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.

Compensation and Career Development
BlueWave offers:

• Competitive monthly salary
• Project-performance incentives
• Technical training
• Product training
• Leadership-development opportunities
• Career advancement based on performance.

Application Closing Date
31st August, 2026.

How to Apply
Interested and qualified candidates should send their CV to:  View email address on hotnigerianjobs.com using the Job Title as the subject of the email

Application Requirements
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

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