Service Engineer at O.K. Isokariari & Sons Nigeria Limited

O.K. ISOKARIARI & SONS (NIGERIA) LIMITED is a leading Engineering, Procurement and Construction company with over 45 years of work experience. We are known for our pragmatic value delivery, which flows from our people centric approach, committed professionals and prudent management.Role Description

The Service Engineer is a full-time, on-site role based in Port Harcourt. This role involves providing technical support and field service for construction equipment, plant machinery, and related systems, including diagnostics, maintenance, and repairs. The Service Engineer will perform routine inspections, identify faults, implement corrective actions, and document service activities in line with company procedures and HSE standards. The role includes collaborating with project teams, workshop staff, and vendors to ensure equipment reliability and minimal downtime, as well as supporting commissioning, upgrades, and periodic overhauls. The Service Engineer will also communicate clearly with internal stakeholders to report issues, recommend preventive maintenance measures, and support continuous improvement in service delivery.

Roles/Responsibilities

Candidates should possess strong Troubleshooting and Technical Support skills to diagnose and resolve equipment and system issues efficiently.
Candidates should possess Field Service experience, including on-site equipment assessments and responsive support at construction and plant locations.
Candidates should possess Maintenance & Repair skills for mechanical, electrical, or electro-mechanical systems used in heavy civil engineering and construction operations.
Candidates should possess effective Communication skills to interact with project teams, supervisors, and vendors, and to prepare clear service reports.
Direct the ET Workshop ET Specialist team in executing specialized Electronic Technician (ET) diagnostics, ECM calibration, telematics monitoring, and electronic control troubleshooting across heavy plant machinery.
Relevant technical qualification (e.g., HND or bachelor’s degree in Mechanical, Electrical, or related field) is preferred.
Experience with construction equipment, asphalt and quarry plants, or industrial machinery in an EPC or civil engineering environment is an advantage.
Demonstrated adherence to HSE standards, ability to work on-site in demanding environments, and strong problem-solving and organizational skills are beneficial.

Qualification

B.Sc., B.Eng., or Higher National Diploma (HND) in Mechanical Engineering, Automotive Engineering, or Plant Engineering.
Advanced proficiency in diagnosing and repairing Caterpillar (CAT), Komatsu, JCB, Mercedes-Benz, and Mack heavy equipment, engines, hydraulic pumps, and electronic control modules.
Hands-on experience with diagnostic software (e.g., CAT Electronic Technician / ET Specialist diagnostic tools, Cummins Insite) and CMMS/ERP workshop management platforms.
Minimum of 10–15 years in heavy equipment maintenance management, with at least 4 years in a supervisor/managerial role overseeing high-volume workshops.
High technical problem-solving ability, structured leadership, safety-first mindset, and effective crisis/breakdown management skills.