Heavy Equipment Engine Specialist

General Engineering Services LLC.; Muscat; On-site; OMR 10,000 - 15,000; Full time

Job summary

General Engineering Services -GENSERV in Oman seeks a Heavy Equipment Engine Specialist to diagnose, teardown, and rebuild complex diesel engines on heavy machinery. You will work across brands with a preference for Volvo CE engines and electronic diesel injection systems.

This role requires five years of hands-on auto-electrical or heavy equipment experience, reading engineering drawings, performing precision machining, and ensuring engines meet factory tolerances.

Qualifications

• Diploma or technical certification in Automobile, Diesel, or Mechanical Engineering.
• Minimum of five years hands-on experience with heavy construction equipment.
• Proven Volvo CE systems experience and diagnostic software preferred.

Responsibilities

• Perform advanced diagnostics and failure analysis on mechanical and electronic diesel engines.
• Disassemble, inspect, and rebuild heavy-duty engines with precision machining.
• Read engineering drawings and manufacturer specs for clearances and timing.
• Diagnose and repair electronic engine management systems including ECUs.
• Execute post-rebuild testing and timing calibrations to meet factory metrics.
• Maintain records of electrical modifications and diagnostic logs.

Skills

Technical expertise

Electronic proficiency

Analytical thinking

Precision tools

Safety compliance

Education

Diploma or technical certification in Automobile, Diesel, or Mechanical Engineering

Tools

Volvo Tech Tool

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 Engine Specialist is responsible for the advanced diagnosis, teardown, precision machining/measuring, repair, and complete assembly of complex internal combustion engines on heavy construction machinery. This role ensures optimal engine performance, strict adherence to factory tolerances, and maximum lifecycle reliability. While working across various heavy equipment brands, a strong specialization and technical familiarity with Volvo Construction Equipment (Volvo CE) engines is highly preferred. Additionally, the role requires integrated knowledge of modern electronic diesel injection systems to ensure proper post‑rebuild calibration and testing.

Duties and Responsibilities

• 1.Diagnostic Troubleshooting: Perform advanced diagnostics and failure analysis on mechanical and electronic diesel engines to determine the root cause of engine failure prior to teardown.
• 2.Component Overhauling & Rebuilding: Disassemble, thoroughly clean, inspect, and completely rebuild heavy‑duty engines. This includes precision machining, honing cylinders, and replacing or reconditioning cylinder heads, engine blocks, crankshafts, pistons, connecting rods, and turbochargers.
• 3.Schematic & Specification Interpretation: Read, interpret engineering drawings, and exact manufacturer specification manuals for clearance, torque, and timing.
• 4.Electronic Integration: Diagnose, test, and repair electronic engine management systems, including wiring harnesses, sensors, actuators, and Electronic Control Units (ECUs) during the rebuild and installation phases.
• 5.Quality Testing & Calibration: Execute post‑rebuild testing, overhead valve adjustments, compression testing, and timing calibrations to ensure the rebuilt engine meets factory performance metrics.
• 6.Documentation & Reporting: Maintain accurate records of all electrical modifications, software versions, and diagnostic logs using the company’s asset.

Skills and Competencies

• Technical Expertise: Deep knowledge of internal combustion engine principles, common‑rail diesel injection systems, precision machining procedures, and component tolerances.
• Electronic Proficiency: Strong fundamental understanding of engine control circuits, digital multimeter usage, and reading electronic engine diagrams.
• Analytical Thinking: Exceptional problem‑solving and failure analysis skills with the ability to identify the root causes of engine failures, blow‑by, or premature wear.
• Precision Tools: Proficient in using specialized precision tools including micrometers, dial indicators, bore gauges, torque wrenches, and electronic engine calibrators.
• Safety & Compliance: Thorough understanding of engine workshop safety practices, heavy engine rigging/lifting techniques, and proper disposal of hazardous engine fluids.

Qualifications & Experiences

• Education:Diploma or technical certification in Automobile, Diesel, or Mechanical Engineering.
• Experience: Minimum of five years of hands‑on experience as an auto‑electrical technician working specifically with heavy construction equipment (e.g., excavators, wheel loaders, articulated haulers).
• Brand Specialization: Proven track record working with Volvo Construction Equipment (Volvo CE) systems and diagnostic software (e.g., Volvo Tech Tool) is strongly preferred.
• Certifications: Certified Heavy Equipment Electrical Technician or equivalent industry‑recognized electronics certification is highly advantageous.

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.