Assistant Engineer – Asphalt R&D and QA/QC

About the role

Ley Choon, one of the largest underground utilities infrastructure companies in Singapore, is hiring an Assistant Engineer to support asphalt research and development, laboratory testing and quality assurance and quality control (QA/QC). The role covers coordinating lab and plant trials, analysing test results, monitoring material quality and performance, and supporting continuous improvement across production and project activities. It is full-time, onsite at the North Singapore office, and training and guidance are provided.

Key responsibilities

• R&D and mix design: assist in developing and optimising asphalt mixtures through material selection, binder modification, additive evaluation and mix design improvements; coordinate material preparation, sampling and testing for lab and plant trials; analyse trial results and recommend improvements; maintain trial records and follow up on outstanding actions.
• Laboratory testing: conduct and coordinate tests on aggregates, bitumen, asphalt mixtures and alternative materials; perform material, volumetric and performance tests per approved procedures; ensure samples are identified, prepared, stored and tracked; support lab process improvements and internal technical training.
• QA/QC: prepare and review test reports, verify results against specifications, investigate non-conforming results and coordinate repeat or verification testing; communicate quality findings and follow up on corrective and preventive actions.
• Site testing: assist in IRI measurements and GripTester tests, coordinate site testing arrangements, collect and analyse data, and support project teams with material quality and pavement performance issues.

Required profile

• Degree in Civil Engineering, Materials Engineering, Chemical Engineering or a related discipline; fresh graduates are welcome.
• Strong interest in asphalt technology, construction materials, laboratory testing and applied research.
• Good analytical and problem-solving skills, with strong attention to detail.
• Willingness to undertake hands-on laboratory work and site testing when required.
• Experience in asphalt, construction materials, laboratory testing or QA/QC is an advantage.

What we offer

• 6-day work week.
• Company shuttle from Woodlands and Kranji MRT stations and a company lunch bus.
• 14 days of annual leave, plus additional leave based on tenure.
• Corporate telecommunication scheme sign-up benefits.
• Medical teleconsultation, dental care, health screenings and a portable medical benefit scheme with monthly Medisave contributions.