Available to hire
I am a Senior Software Engineer with over 15 years of experience delivering enterprise-grade backend and DevOps solutions across government, education, and private sectors. I specialize in Java Spring Boot and Python microservices, CI/CD automation, Docker, and Kubernetes across AWS and GCP. I design scalable APIs, implement OAuth 2.0 authentication, and continually optimize software delivery pipelines.
I am a proven leader with Agile experience and a strong focus on reliability, automation, and cloud integration. I enjoy mentoring teams, streamlining processes, and aligning technical decisions with business goals to deliver robust, scalable systems.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Language
English
Fluent
Malay
Advanced
Chinese
Intermediate
Work Experience
Pod Captain / IT Developer at Vosyn
May 1, 2025 - PresentDeveloped CI/CD pipeline with GitHub Actions and GCP using Google Artifact Registry. Developed Django Python application for cloud reporting using Google Client SDK, Microsoft Graph API and ReportLab.
Software Engineer and Product Consultant at Toppan Ecquaria Pte. Ltd.
December 1, 2021 - PresentDeveloped and deployed Java Spring Boot microservice applications on cloud and on-prem using Docker and Kubernetes (K8s, K0s and OpenShift) and databases (MySQL and MongoDB). Experience with REST API, Maven, Git, Jira and Jenkins. Managed product design and development to support government service provisioning of authentication, authorization, and onboarding to Singapore's national digital identity infrastructure for its citizens. Familiar with PKI and its use with OIDC and OAuth 2.0 for user authentication and authorization. Conducted seminars and pre-sales support for potential clients on sizing and cost.
Senior Lecturer at Nanyang Polytechnic
December 31, 2021 - July 23, 2025Oversaw and crafted the program and assessments for the following modules: Object-Oriented Methodology (Python), Data Structures and Algorithms (Python), User Experience Design. Conducted R&D on blockchain technology and decentralized applications. Developed an Android mobile app connected to a private blockchain network hosted on Microsoft’s Quorum Blockchain Service. Created staking hardware node setup for Ethereum 2.0 blockchain. Developed an e-commerce mobile application for an industry client hosted on Shopify (Liquid), supported by Firebase Realtime Database and Functions (NodeJS).
Vice President, IT at Angel Southeast Asia Pte. Ltd.
August 31, 2020 - July 23, 2025Managed deployment for backend security Java applications to clients in Singapore, Sydney, and Macau. Designed, developed, and deployed end-to-end security Java applications for casino table card and chip inventory.
Lead Engineer at NCS Pte. Ltd.
October 31, 2019 - July 23, 2025Led a Java Spring Boot microservice development for a large-scale project with the Maritime and Port Authority of Singapore. Led development of the gateway layer in the IoT stack in an in-house IoT product to connect edge devices to the Azure cloud.
Senior Engineer at Land Transport Authority
September 30, 2017 - July 23, 2025Designed and developed the backend Java Security Key Management Java application for the Next Generation Electronic Road Pricing (ERP2) project. Developed information security and security key management APIs for vehicle On Board Unit (OBU) security module. Led design and development of C++ server-side software to manage bus fleets in bus depots as part of the Government Contracting Model (GCM) project. Led design and development for C++ Passenger Service Machine (PSM) software upgrade in Singapore train stations. Designed and developed C++ General Ticketing Machine (GTM) software upgrade for Single/Return Trip Paper Tickets in Singapore train stations. Maintained and developed new features on C++ Cubic General Ticketing Machine (CGTM) software including distance-based fare implementation and Youth Olympic Games support. Developed C++ interface for VM945 NETS Terminal on the QNX RTOS platform.
Software Engineer at ST Electronics (InfoComm Systems) Pte. Ltd.
October 31, 2009 - July 23, 2025Designed and developed C# GUI with ArcGIS and deployed C++ backend application of sonar system for Republic of Singapore Navy.
Pod Captain / IT Developer at Vosyn, ON Canada
May 1, 2025 - PresentDeveloped CI/CD pipelines with GitHub Actions and Google Cloud Platform using Google Artifact Registry. Built a Django Python microservice application for cloud reporting leveraging Google Client SDK, Microsoft Graph API, and ReportLab.
Software Engineer and Product Consultant at Toppan Ecquaria Pte. Ltd., Singapore
December 1, 2021 - PresentDeveloped and deployed Java Spring Boot microservices on cloud and on-premises using Docker and Kubernetes (K8s, K0s, OpenShift) with MySQL and MongoDB databases. Managed product design and development to support Singapore's national digital identity infrastructure, integrating PKI with OIDC and OAuth 2.0 for authentication and authorization. Conducted seminars and pre-sales support on product sizing and costs.
Senior Lecturer at Nanyang Polytechnic, Singapore
December 31, 2021 - August 10, 2025Prepared and administered course materials and assessments for Object-Oriented Methodology, Data Structures and Algorithms, and User Experience Design courses. Conducted R&D on blockchain and decentralized applications, developed Android mobile apps connected to private blockchain networks, and created e-commerce mobile apps supported by Firebase.
Vice President, IT at Angel Southeast Asia Pte. Ltd., Singapore / Japan
August 31, 2020 - August 10, 2025Managed deployment of backend security Java applications to clients in Singapore, Sydney, and Macau. Designed and developed end-to-end security applications for casino table card and chip inventory management.
Lead Engineer at NCS Pte. Ltd., Singapore
October 31, 2019 - August 10, 2025Led development of Java Spring Boot microservices for a large-scale project with the Maritime and Port Authority of Singapore. Developed the gateway layer of the IoT stack connecting edge devices to Azure cloud using Java and Apache NiFi integrating multiple messaging protocols including AMQP, MQTT, JMS, LwM2M, and Kafka.
Senior Engineer at Land Transport Authority, Singapore
September 30, 2017 - August 10, 2025Designed and developed backend Java security key management applications for Next Generation Electronic Road Pricing (ERP2). Led design and development of C++ server-side software for bus fleet management, Passenger Service Machine (PSM) and General Ticketing Machine (GTM) software upgrades in train stations. Maintained and enhanced Cubic General Ticketing Machine software including fare implementation and support for the Youth Olympic Games. Developed QNX RTOS interface software for VM945 NETS terminals.
Software Engineer at ST Electronics (InfoComm Systems) Pte. Ltd., Singapore
October 31, 2009 - August 10, 2025Designed and developed C# GUI with ArcGIS and deployed C++ backend applications for a sonar system used by the Republic of Singapore Navy.
Pod Captain / IT Developer at Vosyn
May 1, 2025 - PresentDeveloped a CI/CD pipeline utilizing GitHub Actions and Google Cloud Platform, including Google Artifact Registry. Created a Django Python application to facilitate cloud reporting, leveraging Google Client SDK, Microsoft Graph API, and ReportLab for report generation.
Software Engineer and Product Consultant at Toppan Ecquaria Pte. Ltd.
December 1, 2021 - PresentDeveloped and deployed Java Spring Boot microservices on cloud and on-premises using Docker and Kubernetes ecosystems (K8s, K0s, OpenShift). Managed MySQL and MongoDB database interactions and REST APIs. Supported government service provisioning with advanced authentication and authorization using PKI, OIDC, and OAuth 2.0. Delivered seminars and pre-sales support focusing on sizing and cost efficiency.
Senior Lecturer at Nanyang Polytechnic
December 1, 2021 - August 10, 2025Led curriculum design and assessments for modules on Object-Oriented Methodology and Data Structures & Algorithms using Python, plus User Experience Design courses. Conducted research on blockchain and decentralized applications, including building an Android app tied to a private blockchain and Ethereum 2.0 staking node setup. Developed an e-commerce app using Shopify and Firebase technologies.
Vice President, IT at Angel Southeast Asia Pte. Ltd.
August 1, 2020 - August 10, 2025Managed deployment of backend security Java applications across multiple locations including Singapore, Sydney, and Macau. Designed and implemented end-to-end security applications for casino table card and chip inventory management.
Lead Engineer at NCS Pte. Ltd.
October 1, 2019 - August 10, 2025Led Java Spring Boot microservices development for a major project with Singapore's Maritime and Port Authority. Developed the IoT gateway layer integrating edge devices with Azure cloud using Java and Apache NiFi with multiple messaging protocols (AMQP, MQTT, JMS, LwM2M, Kafka).
Senior Engineer at Land Transport Authority
September 1, 2017 - August 10, 2025Designed and implemented backend Java security key management applications for Singapore’s Next Generation Electronic Road Pricing (ERP2) project. Led development of C++ software for bus fleet management, passenger service machines, and ticketing machines on QNX RTOS. Enhanced fare systems and supported major events like the Youth Olympic Games. Developed NETS terminal interfaces and secured these systems through rigorous API design.
Software Engineer at ST Electronics (InfoComm Systems) Pte. Ltd.
October 1, 2009 - August 10, 2025Designed and developed GUI software in C# integrated with ArcGIS, supporting backend C++ applications in a sonar system for the Republic of Singapore Navy.
Pod Captain / IT Developer at Vosyn AI
May 1, 2025 - December 1, 2025Led the development of end-to-end CI/CD pipelines from GitHub to Google Cloud Platform using GitHub Actions and Google Artifact Registry, cutting deployment time and error rate by 100%. Built Django-based reporting tools with Google Client SDK, Microsoft Graph, and ReportLab for automated data access and visualization. Created a RAG-enabled AI assistant using LangChain, Ollama, FAISS, ReactJS, and Python FastAPI to accelerate internal data retrieval and productivity.
Software Engineer & Product Consultant at Toppan Ecquaria Pte. Ltd.
December 1, 2021 - PresentDesigned and deployed Java Spring Boot microservices on AWS using Docker and Kubernetes, reducing manual deployment errors by 40%. Shaped product design for Singapore’s national digital identity infrastructure using PKI with OAuth 2.0 and OIDC. Led client seminars and pre-sales sessions on product sizing and cost optimization.
Senior Lecturer at Nanyang Polytechnic
September 1, 2020 - December 1, 2021Delivered Object-Oriented Methodology and Data Structures & Algorithms in Python. Led blockchain R&D using Quorum Blockchain Service on Microsoft Azure. Built an e-commerce app on Shopify with a Firebase backend, increasing client engagement.
Vice President, IT at Angel South East Asia Pte. Ltd.
November 1, 2019 - August 1, 2020Designed, developed, and deployed secure Java backend systems for casino inventory tracking across Singapore, Sydney, and Macau. Enhanced system integration and data security with Java frameworks.
Lead Engineer at NCS Pte. Ltd.
September 1, 2017 - October 1, 2019Led Java microservice development for Singapore’s Maritime and Port Authority, improving data accuracy and workflow efficiency. Built an IoT gateway layer using Java and Apache NiFi, integrating AMQP, MQTT, JMS, LwM2M, and Kafka for Azure IoT solutions.
Senior Engineer at Land Transport Authority, Singapore
October 1, 2009 - September 1, 2017Developed backend Java Security Key Management for ERP2, ensuring robust key management between the vehicle’s On-Board Unit and backend servers. Led C++ software development for fleet and ticketing systems, and improved passenger service through real-time system upgrades.
Software Engineer at ST Electronics (InfoComm Systems) Pte. Ltd.
June 1, 2006 - October 1, 2009Developed C++ backend and C# ArcGIS-based GUI for Singapore Navy sonar system, enhancing mission accuracy.
Education
Bachelor of Engineering at Nanyang Technological University, Singapore
January 1, 2002 - December 31, 2006Dual Postgraduate Certificate (Applied Artificial Intelligence & Financial Analytics) at Trent University, Durham, ON, Canada
September 1, 2024 - August 10, 2025Bachelor of Engineering (Computer Engineering) at Nanyang Technological University, Singapore
January 1, 2002 - January 1, 2006Dual Postgraduate Certificate (Applied Artificial Intelligence & Financial Analytics) at Trent University
September 1, 2024 - August 10, 2025Bachelor of Engineering (Computer Engineering) at Nanyang Technological University
January 1, 2002 - January 1, 2006Dual Postgraduate Certificate, Applied AI & Financial Analytics at Trent University, Durham GTA, ON
September 1, 2024 - February 4, 2026Bachelor of Engineering (BEng), Computer Engineering at Nanyang Technological University, Singapore
June 1, 2002 - June 1, 2006Qualifications
American Swimming Coaches Association Level III
January 1, 2022 - January 1, 2024Distinguished Ministry of Transport Award (Transportation Award)
January 1, 2013 - February 4, 2026Industry Experience
Software & Internet, Government, Education, Transportation & Logistics, Financial Services, Professional Services
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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