Title:  Assistant Principal Engineer

ST Engineering is a global technology, defence and engineering group with offices across Asia, Europe, the Middle East and the U.S., serving customers in more than 100 countries. The Group uses technology and innovation to solve real-world problems and improve lives. Our dedication to excellence and our strong track record have earned us a distinctive reputation for quality and trust spanning across the aerospace, smart city, defence and public security segments. Headquartered in Singapore, ST Engineering ranks among the largest companies listed on the Singapore Exchange.

Join our Cyber Team

We are an industry leader in cybersecurity with over two decades of experience, we deliver a holistic suite of trusted cybersecurity solutions to empower cyber resilience for government and ministries, critical infrastructure, and commercial enterprises. Backed by our indigenous capabilities and deep domain expertise, we offer robust cyber-secure products and services in cryptography, cybersecurity engineering, digital authentication, SCADA protection, audit and compliance. We specialise in the design and build of security operations centres for cybersecurity professionals and provide managed security services to strengthen the cybersecurity posture of our government and enterprise customers

Are you passionate about building robust systems and ensuring everything runs like clockwork before it reaches the spotlight? We’re looking for a Senior System Test Engineer/ Manager who thrives on precision, enjoys solving complex integration puzzles, and takes pride in delivering rock-solid systems. In this role, you won’t just be maintaining systems—you’ll be shaping the quality of our cybersecurity products before they even reach the QA team. You’ll play a critical role in the development lifecycle, ensuring that every component is seamlessly integrated, fully functional, and ready for the next stage.

You’ll be responsible for testing cybersecurity products using both existing tools and custom-built automated scripts to ensure they are production-ready. Your work will directly influence the reliability, security, and performance of our solutions before they reach end-users.

Key Responsibilities

• Lead product system integration and testing for cybersecurity solutions.
• Use automated and/or manual testing methods to validate system functionality and performance.
• Collaborate with software/product designers to define and refine quality assurance parameters.
• Draft and maintain comprehensive testing documentation and procedures.
• Conduct system-level testing, analyze results, and troubleshoot issues.
• Review and interpret product specifications to ensure alignment with testing outcomes.
• Provide detailed System Test reports and recommend improvements.
• Ensure smooth production support and successful deployment of products into the market.
• Respond to requests and feedback from the design team and management, contributing to continuous improvement.

 Requirements:

• Experience in software scripting on Windows and Linux systems
• Knowledge in network is an added advantage  
• Knowledge in information security and standards is an added advantage
• Previous experience as a QA/Testing engineer.
• High-level analytical skills.
• Advanced written and verbal communication skills.
• Critical thinker.
• Proficient in MS Office software.
• Work Location: Jurong East

Why Join Us?

• Be a key player in cybersecurity innovation, helping to protect users and organizations worldwide.
• Work in a collaborative, fast-paced environment where your insights directly influence product success.
• Gain hands-on experience with cutting-edge technologies and automation frameworks.
• Take ownership of a mission-critical role that bridges development and QA.

Find out more: https://www.stengg.com/cybersecurity

ST Engineering believes in fostering a culture where team members are encouraged to overcome challenges, explore new ideas, and work together to succeed. We value individuals who are determined to push beyond the boundaries, and have a thirst for knowledge, continuous learning, and self-improvement.