Heavy Equipment & Generator Electrical Specialist

General Engineering Services LLC.; Muscat; On-site; OMR 12,000 - 18,000; Full time

Job summary

General Engineering Services -GENSERV in Oman seeks a Heavy Equipment & Generator Electrical Specialist to diagnose, repair, and optimize electrical systems on diesel generators and heavy machinery. The role emphasizes field service across customer sites and workshops.

Candidates should have a Diploma or technical cert in Electrical/Electronics, at least 5 years of hands-on experience with generators and Volvo CE systems; knowledge of MGS, Doosan, Kohler is a plus; strict safety and

Qualifications

• Diploma or technical certification in Electrical Engineering, Electronics Engineering, Automotive Electrics, or related field.
• Minimum of 5 years hands-on experience as an electrical technician with industrial diesel generators and heavy construction equipment.
• Proven track record with Volvo Construction Equipment systems is preferred.
• Direct experience servicing Mitsubishi/MGS, Doosan, and Kohler generators is an advantage.
• Certified Heavy Equipment Electrical Technician or equivalent.

Responsibilities

• Diagnose, troubleshoot, and repair electrical faults on industrial diesel generators, heavy-duty alternators, AVRs, ECUs, and control panels.
• Perform advanced electrical diagnostics on heavy machinery to isolate faults in circuits and CAN-bus networks.
• Read, interpret engineering drawings and manufacturer manuals for clearance, torque, and timing.
• Read and interpret complex wiring diagrams, circuit schematics, power layouts, and CAN-bus maps (J1939).
• Program and calibrate ECUs, EMS, and displays on gensets and heavy equipment.
• Rebuild or replace wiring harnesses, connectors, fuse blocks, starters, and charging systems to OEM standards.
• Maintain accurate maintenance records and write professional technical reports.

Skills

Power generation

Heavy equipment electronics

Analytical thinking

Precision tools

Safety & compliance

Education

Electrical/Electronics Diploma

Tools

Diagnostics laptops

Electronic scanners

CAN-bus adapters

Digital multimeters

Megger insulation tester

Job description

Why Join Us?

General Engineering Services -GENSERV is a leading supplier in the Oman market with a strong and well-established presence in the construction equipment sector. Founded in 1982, we have grown over the past 44 years to become one of the largest construction equipment dealerships in Oman. Today, GENSERV is recognized as one of Oman’s leading construction equipment dealers, representing international brands and serving major customers across construction, infrastructure, quarry, mining, rental, and industrial sectors. Joining GENSERV means becoming part of a professional and supportive team where you can learn, grow personally, and develop your career through continuous exposure to customers, products, projects, and real business challenges. We value people who are eager to improve, contribute, and build a long-term future with us.

Job Purpose:

The Heavy Equipment & Generator Electrical Specialist is responsible for the advanced diagnosis, troubleshooting, repair, and configuration of industrial diesel generators and complex electrical/electronic systems on heavy construction machinery. This dual-focused role ensures optimal power delivery, network communication, and minimal downtime across field operations. While working across various equipment lines, technical familiarity with Volvo Construction Equipment (Volvo CE) is preferred, and hands-on experience with MGS (Mitsubishi Generator Series), Doosan, and Kohler power generation systems is a majoradvantage.

Duties and Responsibilities:

1. Generator Electrical Maintenance:Diagnose, troubleshoot, and repair electrical faults on industrial diesel generators, heavy-duty alternators, automatic voltage regulators (AVRs), electronic governors, and control panels.

2. Heavy Equipment Troubleshooting:Perform advanced electrical diagnostics on heavy construction machinery to isolate open circuits, short circuits, and communication network faults.

3. Control Systems & Synchronization: Read, interpret engineering drawings, and exact manufacturer specification manuals for clearance, torque, and timing.

4.Electronic Integration:Read, analyze, and accurately interpret complex electrical wiring diagrams, circuit schematics, power distribution layouts, and CAN-bus network maps (J1939).

5. System Programming & Calibration:Program and calibrate electronic control units (ECUs), engine management systems (EMS), digital displays, and parameters on both gensets and heavy equipment.

6. Harness & Component Overhauling: Rebuild, repair, or replace damaged wiring harnesses, connectors, fuse blocks, starter motors, and electrical charging systems to OEM standards.

7. Documentation & Reporting: Maintain accurate records of all maintenance activities, load test data, and diagnostic logs using asset management software, with a strong ability to write professional technical reports.

Skills and Competencies:

1. Power Generation Expertise:Deep knowledge of AC/DC electrical systems, 3-phase electricity, load-banking, and digital generator control modules (e.g., Deep Sea, ComAp).

2.Heavy Equipment Electronics: Strong fundamental understanding of 12V/24V systems, multiplexing, CAN-bus architecture, sensors, and electronic control topologies.

3.Analytical Thinking:Exceptional problem-solving skills with the ability to trace multi-system electrical faults between primary engine power and auxiliary equipment systems.

4.Precision Tools:Proficient in using specialized diagnostic laptops, electronic scanners, communication adapters, digital multimeters, and insulation testers (Megger).

5.Safety & Compliance:Thorough understanding of electrical safety protocols, lockout/tagout (LOTO) procedures, battery handling safety, and proper

Qualifications & Experience:

• Education:Diploma or technical certification in Electrical Engineering, Electronics Engineering, Automotive Electrics, or a related technical field.
• Experience:Minimum of 5 years of hands‑on experience as an electrical technician working specifically with industrial diesel generators and heavy construction equipment.

• Brand Specialization: 1. Proven track record working with Volvo Construction Equipment(Volvo CE) systems and software (e.g., Volvo Tech Tool) isstrongly preferred.2. Direct experience servicing and troubleshooting MGS (Mitsubishi),Doosan, and Kohler generators is considered a significant advantage.
• Certifications:Certified Heavy Equipment Electrical Technician or equivalent.

Physical Requirements:

• Ability to work in restricted or awkward physical positions while tracing wiring behind panels or under cabs.
• Capability to work in diverse environmental conditions, including both workshop settings and outdoor field locations.