Senior Mechanical, Refrigeration & Energy Systems Engineer

Senior Mechanical, Refrigeration & Energy Systems Engineer

Aldelano Organic Foods is the Newest Innovation in Clean Green Farming. We offer Hydroponically Grown, Organic Greenhouse Produce that has better quality and taste than traditional farming.

Senior Mechanical, Refrigeration & Energy Systems Engineer

• Job Type Full Time
• Qualification BA/BSc/HND
• Experience 5 - 10 years
• Location Ogun
• Job Field Engineering / Technical
• Salary Range ₦200,000 - ₦300,000/month

JOB SUMMARY

Aldelano is seeking a highly skilled, technically competent, and experienced Mechanical, Refrigeration & Energy Systems Engineer capable of designing, building, installing, troubleshooting, repairing, and maintaining industrial refrigeration systems, heavy-duty generators, and integrated energy solutions.

The ideal candidate must possess strong practical engineering skills, particularly in the design and construction of 40-foot refrigerated cold boxes (cold rooms), solar-powered refrigeration systems, industrial cooling equipment, and heavy-duty power generation systems.

This position requires an engineer who can independently manage engineering projects from initial concept, technical calculations, and costing through equipment selection, fabrication, installation, commissioning, and long-term maintenance.

We are looking for a hands-on engineer who can design, calculate, build, troubleshoot, and deliver functional engineering systems—not someone with theoretical knowledge alone.

KEY RESPONSIBILITIES

• Heavy-Duty Generator Maintenance and Repairs

• Diagnose, troubleshoot, repair, and maintain heavy-duty diesel generators and associated electrical and mechanical systems.

• Perform preventive and corrective maintenance on industrial generators.

• Troubleshoot engine failures, alternators, voltage regulators, control panels, fuel systems, and cooling systems.

• Diagnose electrical and mechanical faults affecting generator efficiency and performance.

• Conduct generator load assessments, fuel consumption calculations, and power output evaluations.

• Maintain automatic transfer switches (ATS), generator synchronization systems, and associated power distribution equipment.

• Develop maintenance schedules to minimize downtime and operational costs.

• Industrial Refrigeration System Design and Construction

• Design and construct complete refrigeration systems from scratch.

• Develop functional refrigeration solutions for agricultural produce storage, preservation, and industrial cooling applications.

• Calculate refrigeration loads, cooling capacities, insulation requirements, and temperature control specifications.

• Select and size compressors, condensers, evaporators, expansion valves, refrigerant piping, and other refrigeration components.

• Understand refrigeration cycles, heat transfer, thermodynamics, and energy efficiency.

• Supervise fabrication, assembly, installation, testing, and commissioning of refrigeration systems.

• Diagnose and repair refrigeration system failures, including compressor faults, refrigerant leaks, pressure irregularities, and electrical control problems.

• 40-Foot Cold Box Design, Construction and Maintenance

• Design and develop complete 40-foot refrigerated cold boxes using shipping containers or purpose-built insulated structures.

• Calculate the refrigeration capacity required to maintain specified internal temperatures under different environmental and product-loading conditions.

• Determine appropriate insulation materials, thicknesses, thermal performance, and moisture protection requirements.

• Design efficient airflow distribution, ventilation, humidity management, and temperature monitoring systems.

• Calculate product pull-down loads, transmission heat gains, infiltration loads, and equipment heat loads.

• Prepare detailed engineering drawings, equipment specifications, and bills of materials.

• Supervise cold box construction, refrigeration equipment installation, and commissioning.

• Troubleshoot and maintain completed cold boxes to ensure reliable and efficient operation.

• Implement preventive maintenance systems and emergency breakdown response procedures.

• Solar Refrigeration and Energy System Design

• Calculate the total energy requirements of refrigeration systems, including daily consumption in kWh and peak power demand in kW.

• Design solar-powered and hybrid refrigeration systems for 40-foot cold boxes.

• Determine required solar panel capacity, battery storage, inverter sizing, and backup generator capacity.

• Perform solar energy yield calculations based on available sunlight, system losses, and operational requirements.

• Understand energy conversion between electrical, mechanical, and thermal systems.

• Evaluate the coefficient of performance (COP), refrigeration efficiency, and overall system energy consumption.

• Design systems capable of integrating solar power, batteries, generators, and grid electricity.

• Recommend energy-efficient solutions to reduce operating costs and improve system reliability.

• Engineering Cost Estimation and Project Budgeting

• Prepare comprehensive cost estimates for refrigeration and energy projects.

• Calculate the cost of compressors, condensers, evaporators, insulation, solar panels, batteries, inverters, piping, electrical components, fabrication, and installation.

• Develop detailed bills of quantities (BOQ) and bills of materials (BOM).

• Evaluate alternative equipment and materials based on cost, performance, reliability, and availability.

• Prepare project budgets covering materials, labour, transportation, installation, commissioning, and contingency allowances.

• Calculate estimated energy consumption costs, maintenance costs, and long-term operating expenses.

• Conduct feasibility assessments and cost-benefit analyses for proposed engineering projects.

• Monitor project expenditure and deliver engineering projects within approved budgets.

• Troubleshooting, Maintenance and Technical Support

• Diagnose mechanical, electrical, refrigeration, and energy system faults.

• Develop and implement preventive and corrective maintenance procedures.

• Monitor equipment performance and recommend improvements.

• Maintain accurate maintenance records, engineering reports, and equipment documentation.

• Train technicians and maintenance personnel on equipment operation and safety.

• Ensure compliance with relevant electrical, mechanical, refrigeration, environmental, and workplace safety standards.

• REQUIRED QUALIFICATIONS

• Bachelor's degree or HND in Mechanical Engineering, Electrical Engineering, Mechatron