On a professional level, Er. Teo is currently a Member of Singapore Electrical Contractors & Licensed Electrical Workers Association (SECA). Previously, he was also a member of the Institution of Engineers, Singapore (MIES), Member of Institution of Electrical Engineer, UK (MIEE) and Chartered Engineer, UK (C Eng).


An Authorised High Voltage Testing Engineer, 22 kV and a SP Power Grid Authorised Tester, Er. Teo specializes in Switchgears, Protection Systems in Distribution Networks and Testing & Commissioning in Distribution Networks for voltages up to 22 kV.


For the last 19 years, he has been a Trainer of "High Voltage Operations Course for Engineers”.  This course is organised by Ngee Ann Polytechnic for working engineers and PEs aspiring to apply for EMA LEW, Grade 9 Switching Licence; culminating in an exam, sanctioned by EMA.  He has trained more than 800 participants to date.


Director, Professional Engineer

Ms Joyce Chin joined STEPL in 2016 and rose to the position of General Manager (Covering) in October 2017. Armed with a Bachelor of Science (Honours), she has a strong foundation in Human Capital Management and valuable experience accumulated from working in various industries in Human Resources and Sales. Joyce plays a crucial role in the Sales department, focusing on the sustainability and the execution of the company’s growth plans and ensuring that clients and partners continue to enjoy an excellent experience with STEPL.


General Manager (Covering)

Mr Aw Zhi Hao graduated with First-Class Honours in Electrical and Electronic Engineering from Nanyang Technological University in 2016. Equipped with a wealth of knowledge and a repertoire of skills, he has varied opportunities to develop his expertise in the maintenance and installation works, ranging from switchboard servicing to High Tension (HT) switchgear testing. Currently a Licensed Electrical Worker (LEW) Grade 8 and authorised tester registered with SP Power, Zhi Hao is able to sharpen his expertise and continues to contribute significantly in mentoring and leading the team to achieve outcomes to meet client satisfaction.


Operations Manager

Mr Pang Soon Hua has about 20 years experience in electrical engineering which includes high voltage and low voltage switchgear and transformer testing, commissioning and maintenance. He is currently a Licensed Electrical Worker (Technician) and an authorised tester registered with SP Power.


Technical Manager

Duan Tongwei

Electrical Engineer

Mr Duan Tongwei has more than 15 years of experience in the electrical works industry. He has held several leadership roles during his experience as a qualified electrician in High and Low Voltage as well as Power Distribution in China and Kazakhstan. His career at System Technic began in 2011 and he has acquired a wealth of experience in electrical testing and maintenance over the years. 

Miss Vanessa Teo graduated from Nanyang Technological University in 2012 and joined STEPL in 2017 after working in the Singapore Public Service for 5 years. She plays a key role in Human Resources functions and business administration in the company.  


Admin Manager


Behind our team of engineers are our skilled technicians who work tirelessly even at odd hours to ensure that our clients are satisfied and that their businesses are up and running with zero electrical downtime. Our company employs a team of experienced technicians and skilled foremen with more than 25 years of experience.


STEPL is a service-oriented company which offers customers the most complete solutions pertaining to their needs on maintaining a reliable electrical utility network on their premises.



  • Facebook - Black Circle
  • LinkedIn - Black Circle

37 Jalan Pemimpin, #04-15, Singapore 577177

6353 4788

© 2019 System Technic Engineering Pte Ltd

STEPL Logo_Trans Dark.png