Principal Technician II

St Engineering; Singapore; On-site; SGD 50,000 - 70,000; Full time

Job summary

ST Engineering is seeking a Senior Technician to perform complex maintenance, inspection, troubleshooting and repair on aircraft airframes and engines. You will guide junior technicians and work with Engineering, Quality Assurance and Operations to maintain safety, quality and readiness.

You will lead fault diagnosis, document maintenance records, and support continuous improvement in the workshop while ensuring compliance with civil aviation authorities.

Qualifications

• GCE O-Level or equivalent with hands-on aerospace experience.
• Experience in airframe and engine maintenance in an aerospace environment.
• Ability to read mechanical drawings and maintenance manuals.
• Strong commitment to safety, quality and regulatory compliance.

Responsibilities

• Perform detailed airframe and engine maintenance, including overhaul and repairs.
• Lead troubleshooting and fault diagnosis to resolve complex issues.
• Ensure compliance with aviation regulations and procedures.
• Provide technical guidance and coaching to technicians.
• Collaborate with engineering to implement modifications and service bulletins.
• Support audit processes and drive continuous improvement in the workshop.
• Maintain accurate maintenance records and inspection reports.
• Perform other duties as assigned by the Supervisor.

Skills

Airframe maintenance

Engine maintenance

Troubleshooting

Leadership

Communication

Education

GCE O-Level or equivalent

Tools

Hand tools

Maintenance equipment

Job description

As a Senior Technician, you will leverage your extensive technical expertise and hands-on experience to perform complex maintenance, inspection, troubleshooting, and repair activities on aircraft airframes and engines. You will play a critical role in maintaining the highest standards of safety, quality, and regulatory compliance while ensuring aircraft serviceability and operational readiness..

In this role, you will provide technical guidance and mentorship to junior technicians, fostering a culture of continuous learning and operational excellence. Working closely with cross-functional teams, including Engineering, Quality Assurance, and Operations, you will contribute to optimizing maintenance processes, improving aircraft turnaround times, and enhancing overall fleet reliability and performance.

Key Responsibilities

• Perform detailed airframe and engine maintenance, including overhaul and repairs following strict safety and quality standards.
• Lead troubleshooting and fault diagnosis activities to resolve complex technical issues efficiently.
• Ensure compliance with aviation regulations and company procedures in all maintenance activities.
• Provide technical guidance and coaching to technicians, fostering skill development and knowledge sharing within the team.
• Collaborate with engineering teams to implement modifications and improvements suggested from maintenance feedback and service bulletins.
• Support audit processes and contribute to continuous improvement initiatives within the workshop environment.
• Maintain accurate and timely documentation of maintenance records and inspection reports.
• Perform any other job-related duties and responsibilities as assigned by the Supervisor to support departmental and organizational objectives.

Skills and Qualifications

• GCE O-Level or equivalent, coupled with a minimum of 5 years of hands-on experience in the commercial aerospace industry, preferably in airframe and engine maintenance.
• Competent in the use of hand tools and maintenance equipment.
• Ability to read and interpret mechanical drawings, technical manuals, and maintenance documentation
• Proven experience in airframe and engine maintenance in an aerospace environment, preferably within a similar role.
• Strong understanding of aircraft systems, materials, and maintenance procedures compliant with civil aviation authorities.
• Excellent problem-solving skills with the ability to apply technical knowledge to diagnose and resolve issues.
• Competent in reading and interpreting technical manuals, engineering drawings, and maintenance documentation.
• Demonstrated leadership abilities with experience guiding teams and managing workload priorities.
• Effective communication skills, capable of working collaboratively across multiple disciplines and levels of the organisation.
• A passion for safety, quality, and continuous professional development.

ST Engineering

is a global technology, defence and engineering group with a diverse portfolio of businesses across the aerospace, smart city, defence and public security segments. The Group harnesses technology and innovation to solve real-world problems, enabling a more secure and sustainable world. Headquartered in Singapore, it has operations spanning Asia, Europe, the Middle East and the U.S., serving customers in more than 100 countries. ST Engineering reported revenue of over $12b in 2025 and ranks among the largest companies listed on the Singapore Exchange. It is a component stock of MSCI Singapore, FTSE Straits Times Index and Dow Jones Best-in-Class Asia Pacific Index

About Commercial Aerospace business

ST Engineering's Commercial Aerospace business is a world-class Original Equipment Manufacturer (OEM) and Maintenance, Repair and Overhaul (MRO) service provider with proven solutions for practically every stage of an aircraft life cycle. With 50 years of reputable track record in aviation, backed by a highly experienced team of engineers and technicians across facilities in Asia Pacific, the U.S. and Europe, we know what it takes to keep the world flying safely.