Available to hire
Full-stack Java application architect with 22 years of experience delivering enterprise and cloud-native systems, with deep expertise in data engineering, BI/analytics, and machine learning (supervised/unsupervised). Skilled in dimensional modeling (star schema/snowflake), ETL/warehousing, AI/ML algorithms (e.g., K-means, decision trees, ARIMA/ARIMA-X), and building production-grade architectures.
Experienced in leading large teams and high-impact government and enterprise platforms, including architecture leadership, data migration and harmonization, and performance/observability (e.g., AppDynamics, ELK). Strong background across integration (APIs, SOAP/REST, Kafka, MQ), security (SSO/OIDC/PKI, encryption, OWASP prevention), and modern DevOps practices (CI/CD, Kubernetes, Azure/AWS).
Experience Level
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Intermediate
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Language
Work Experience
Application Architect at Mindteck
October 1, 2022 - May 1, 2023Provided guidance to Java developers, designed a fuzzy search capability using simplified NLP and Euclidean distance similarity, and rectified production performance issues.
Solution Architect / Architect at Decision Science
December 17, 2018 - September 1, 2018Architected a live stream mobile application and supporting e-commerce engagement platform, including evaluating new technologies and defining reference architecture. Also contributed to defining high-level architecture for mobile event apps and related systems.
Technical Architect at Fujitsu Singapore
September 1, 2018 - October 1, 2022Served as AppDynamics APM SME, designed and led architecture for Azure cloud native applications (AKS, terraform, microservices, DevOps), supported master data management (Semarchy), and delivered CI/CD POCs. Also supported mobile regression testing and performance testing. Technologies included Java, Kubernetes, Spring Boot, Docker, Data Flow, MinIO (S3), and Kafka.
Solution Architect / Architect (Project roles including Architect and Project Manager) at Decision Science (as stated in resume)
December 1, 2017 - September 1, 2018Architected and defined reference architectures for a live-streaming mobile application with e-commerce integration. Evaluated and incorporated new technologies including AWS microservices architecture, Quorum blockchain, XMPP chat, and Wowza streaming. Also led architecture for an insurance sales activity mobile app and an event management mobile app, including integrations and offshore partner management.
Lead IT Architect at NCS
January 1, 2014 - October 1, 2016Defined microservices reference architecture and coding guidelines for a Singapore government PoC, contributed as technical architect for national trade infrastructure, and advised on Java applications for DBS Bank. Provided architecture leadership for system design, frameworks, reusable components, and organization best-practice sharing.
Chief Architect / Manager (Architect) at CrimsonLogic
May 1, 2012 - November 30, 2013Led a multi-million-dollar (SGD 30M) integrated business licensing system connecting 17 government agencies. Managed a team of architects/managers/developers (including offshore resources), planned delivery, provided technical leadership, advised on data migration strategy, supported process and data harmonization, and prepared rollout requirement templates.
Chief Architect at CrimsonLogic
May 1, 2012 - November 1, 2013Led a multi-agency integrated business licensing system with SGD 30m scope covering business process, data and system harmonization. Managed architects and application managers, drafted rollout templates for business process analysts, and advised on data migration strategy and methodology.
Architect / Project Manager at Ecquaria PteLtd
November 1, 2010 - May 1, 2012Defined system-level architecture, work/resource plans, and delivered execution for SingPost mail systems, including Java web platform and iOS/Android components. Managed scope and schedule and provided technical leadership.
Chief Architect / Software Development Manager at Acceval Pte Ltd
March 1, 2006 - November 1, 2010Built and led the company’s flagship BI/AI/data-warehouse product and development organization. Designed a pricing software platform including price forecasting (ARIMA/ARIMA-X), customer/product segmentation (clustering), price optimization, and BI dashboards for margin performance and transaction-level leakage analysis. Managed design centers, set technical direction, and built a BI engine from scratch (ETL, data warehouse, analytics).
CSA Project Manager / Solution Architect at CSA Project Manager
August 1, 2004 - February 28, 2006Led requirements gathering and analysis, defined overall architecture/framework, and implemented a custom business rule engine for internet registration system to support configurable eligibility policies. Designed modules, performed code reviews, led a team of 3, and executed load testing.
Project Manager / Solution Architect (also Business Rule Engine lead) at CSA Project Manager (as stated: CSA)
August 1, 2004 - February 1, 2006Led requirement gathering and analysis, defined architecture/framework for an internet registration system, created a custom business rule engine for configurable eligibility policies, designed modules, performed code reviews, and conducted load testing.
Solution Architect at Singapore Computer System
August 1, 2003 - August 1, 2004Led a team to implement a J2EE post-paid mobile service provisioning system, including requirement analysis, release management framework definition, module design, and code reviews. Delivered architecture and technical guidance for compliance-related provisioning and integrations.
Architect / Project Leader at Integro Consultant
July 1, 2001 - July 1, 2003Led design and implementation for UOB Singapore commercial e-banking and retail e-banking enhancements. Managed EAI and back-end integrations using IBM MQ, Connect Direct, messaging and SSO components. Led multiple consultant teams and oversaw system integration and enhancements.
Consultant / Module Lead at Elipva Consultant
April 1, 2000 - July 31, 2001Delivered DBS single sign-on for bank applications, performing module leadership for customer function and service integration. Architected the framework, performed OO analysis/design using UML and patterns, designed LDAP data store, configured WebLogic clustering, and configured SiteMinder SSO.
Module Lead at Elipva Consultant
April 1, 2000 - July 1, 2001Module lead for DBS Singapore single sign-on, including object-oriented analysis/design, LDAP data store design, WebLogic clustering configuration, and Siteminder SSO configuration. Also led service integration and performed OO analysis/design using UML and design patterns.
Education
Bachelor of Computer Engineering at Nanyang Technological University, Singapore
January 1, 1996 - January 1, 1999Diploma in Electronics and Communication at Singapore Polytechnic, Singapore
January 1, 1990 - January 1, 1993Professional Diploma in Data Science (AI/ML) at Upskill Lithan Academy & NTUC Learning Hub
January 1, 2023 - January 1, 2025Bachelor of Computer Engineering at Nanyang Technological University, Singapore
January 1, 1996 - January 1, 1999Diploma in Electronics and Communication at Singapore Polytechnic, Singapore
January 1, 1990 - January 1, 1993Qualifications
Certified Data Science Associate (Machine Learning)
January 11, 2030 - July 31, 2026Certified Data Visualization
November 1, 2024 - July 31, 2026Certified Data Strategy
March 1, 2025 - July 31, 2026Certified Data Engineering
April 1, 2025 - July 31, 2026Certified Computational Modeling
December 1, 2024 - July 31, 2026Certified ScrumMaster®
January 11, 2030 - July 31, 2026Certified Problem Management
January 1, 2019 - July 31, 2026Certified Applications Support and Enhancement
April 1, 2025 - July 31, 2026Certified Problem Solving
March 1, 2025 - July 31, 2026Certified Network Configuration
May 1, 2025 - July 31, 2026Certified AppDynamics Implementation Professional
January 11, 2030 - July 31, 2026Certified AppDynamics SE Kickstarter
January 11, 2030 - July 31, 2026Certificate AppDynamics Sales Kickstarter
January 11, 2030 - July 31, 2026Certified Cisco Black Belt ThousandEyes Pre-Sales Stage 1
January 11, 2030 - July 31, 2026Certificated CISCO Black Belt ThousandEyes Pre-Sales Stage 2
January 11, 2030 - July 31, 2026Certified IT Project Manager (CITPM)
January 11, 2030 - July 31, 2026Cloud Operations on AWS
May 1, 2025 - July 31, 2026Architect on AWS Course
January 1, 2025 - July 31, 2026Architect on Azure Course
January 1, 2025 - July 31, 2026J2EE Architect Certification Course
January 11, 2030 - July 31, 2026CompTIA Network+
January 11, 2030 - July 31, 2026CompTIA Linux+
January 11, 2030 - July 31, 2026CompTIA Security+
January 11, 2030 - July 31, 2026DevOps Foundation Course
January 11, 2030 - July 31, 2026PCF Administration Course
January 11, 2030 - July 31, 2026BEA WebLogic Application Server Administration
January 11, 2030 - July 31, 2026SAP J2EE NetWeaver Application Server Administration
January 11, 2030 - July 31, 2026Professional Diploma in Data Science (AI/ML)
January 1, 2023 - January 1, 2025AWS Cloud Administrator
January 11, 2030 - July 31, 2026Azure Cloud Administrator
January 11, 2030 - July 31, 2026Certified ScrumMaster®
January 11, 2030 - July 31, 2026Certified Data Science Associate (Machine Learning)
January 11, 2030 - July 31, 2026Certified Data Visualization
November 1, 2024 - July 31, 2026Certified Data Strategy
March 1, 2025 - July 31, 2026Certified Data Engineering
April 1, 2025 - July 31, 2026Certified Computational Modeling
December 1, 2024 - July 31, 2026Certified Problem Management
January 1, 2019 - July 31, 2026Certified Applications Support and Enhancement
April 1, 2025 - July 31, 2026Certified Problem Solving
March 1, 2025 - July 31, 2026Certified Network Configuration
May 1, 2025 - July 31, 2026Industry Experience
Government, Financial Services, Telecommunications, Education, Professional Services, Other, Software & Internet
Experience Level
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Intermediate
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Intermediate
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