Senior Engine Diagnostic Technician & Mentor

Cummins Inc; Johannesburg; On-site; ZAR 420,000 - 540,000; Full time

Job summary

Cummins Inc. in Johannesburg, South Africa, seeks a Technical Service Writer for the Master Rebuild Centre. You will diagnose and resolve complex engine issues, lead teardowns, and provide technical guidance while maintaining safety and quality standards.

You will collaborate with sites, customers, and engineering teams, coaching technicians and delivering excellent service during the analysis process. This role is on-site with a focus on reliability and continuous improvement.

Qualifications

• Qualified Diesel Mechanic/Fitter with minimum N6.
• Matric with Grade C or better in Mathematics, English and Science.
• At least 5 years' experience on Heavy Duty or High Horsepower Cummins Diesel Engines.
• Apprentice Trained Engine Technician (Preferred).
• Trade certificate or equivalent (Preferred).
• Locally valid driving permit (Preferred).
• Expert knowledge of engine products.
• Experience coaching junior technicians.
• Experience in dual trades or multiple market segments (preferred).
• Licensing for export controls or sanctions regulations (may be required).

Responsibilities

• Diagnose and resolve highly complex engine issues through advanced troubleshooting and root cause analysis.
• Lead by example in the workshop; maintain productivity, quality, safety and professionalism while handling complex challenges.
• Coach and develop less experienced technicians with technical guidance and hands-on support.
• Perform detailed engine inspections and failure analyses to identify issues early, raise service requests, and reduce downtime.
• Deliver exceptional customer support by proactively communicating with stakeholders and ensuring a positive experience throughout analysis.
• Manage warranty or premature failure teardowns; confirm warranty coverage and ensure teardowns follow Cummins standards.
• Ensure quality and compliance by completing accurate condition and failure reports and adhering to HSE protocols.
• Drive continuous improvement through Toolbox Talks and supporting achievement of business objectives.

Skills

Technical troubleshooting

Collaboration and communication

Independent problem-solving

Cummins product knowledge

Education

N6

Matric with Math/English/Science

Apprentice Trained Engine Technician

Trade certificate

Driving permit

Heavy Duty engine experience

Tools

QSOL software

SR systems

Job description

Cummins Inc. in Johannesburg, South Africa, seeks a Technical Service Writer for the Master Rebuild Centre. You will diagnose and resolve complex engine issues, lead teardowns, and provide technical guidance while maintaining safety and quality standards.

You will collaborate with sites, customers, and engineering teams, coaching technicians and delivering excellent service during the analysis process. This role is on-site with a focus on reliability and continuous improvement.