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• Led the development of the Okta Identity Governance products, focusing on both foundation and feature developments. Successfully built the Okta Access Requests product from initiation through to its early release in one year.• Directed the adoption and migration of AWS Aurora PostgreSQL, trailblazing the project from initiation through to proof-of-concept, framework evaluation, tools integration and CI/CD implementations, culminating in a successful rollout in 8 months.• Strengthened the technical foundation of products. Successfully re-engineered data synchronization component, eliminating historical flakiness in the system.• Delivered a custom role-based access control system within six months, enabling adoption across the entire Okta Identity Governance platform.• Engineered the Okta Access Requests public APIs and successfully launched them to production.• Mentored and guided team members, fostering a culture of technical excellence and collaborative problem-solving.Technology experiences:- Java, Spring Boot, Spring Data, Spring Cloud Config- Javascript/Typescript, React, Node.js, Express.js- Rest API, gRPC, OpenAPI, Redocly- OAuth2, SAML, OpenID Connect- Wavefront, Splunk, Datadog- AWS ECS, VPC, IAM- AWS Aurora Postgres/MySQL, Snowflake, MongoDB- Flyway- Terraform, Ansible, Docker

• Spearheaded the development of Goku, Workday’s internal data Analytics and machine learning platform, integrating advanced data processing technologies and frameworks to support data pipeline, data catalog, dashboarding and ML model training. Successfully developed and launched the platform from initial concept to early release within one year, evolving into a comprehensive platform that supported analytics for over 4 petabytes of data and served more than 10k active users.• Led the design and implementation of Goku Auth Provider, an authentication and authorization system implementing OAuth2/OpenID standards and integrated with Okta for seamless identity management.• Directed the creation of Goku Flow, an in-house data pipeline system leveraging Mesos, Spark and Python to efficiently manage data processing at scale.• Drove the integration of Goku Data Catalog, embedding Amundsen, an open-source data catalog into Goku platform to enhance data discoverability.• Developed and optimized the Workday in-memory object management system, enhancing data conversion framework. Ensured Workday system zero-downtime being successfully implemented.Technology experiences:- Scala, Play framework, AKKA- Python, Flask , Click framework- Javascript, AngularJS, bootstrap, requireJS, React, Node.js- Java, Spring Boot- Shell scripts- Gradle, Ant, Maven, SBT, Teamcity, Jenkins, GIT, SVN- Ansible, Docker, Vagrant, Kubernetes, Helm, Mesos- Apache Spark/PySpark, Hive/Metastore, HDFS, Kafka, Neo4j, Elastic Search, MySQL- H2O, PMML, Apache Superset, Apache Zeppelin, R-shiny, Amundsen- OAuth2, SAML, OpenID Connect- Vault/Hashicorp

• Led the development of Eze trading commission management systems, focusing on new feature development, successfully completed the initial release of the product in 8 months.Technology Experiences- C#, Razor, ASP.NET MVC, Web API- Javascript/TypeScript, AngularJS, jQuery, RequireJS, Bootstrap, Jasmine- LINQ, Couchbase

• Headed solution architecture team, interfacing with clients to analyze requirements and design technical solutions. Successfully rolled out Moody’s risk management systems for ANZ bank in two years.Technology Experiences- Java, Web Services, OSGi, Flex, Oracle DB, Groovy, Hudson, Perl, Maven/Ant, Perforce, VBA

• Led the architecture design of Huawei’s cloud computing and big data analytics platform, coordinating cross-regional teams in India, the US and China, completed the platform architecture design in under one year.Technology Experiences- Java, C++, ZooKeeper, HBase, Hadoop, Jetty, Eucalyptus, Ngnix, OS Virtualization.

• Designed and developed UBS Wealth Management systems, including e-Portfolio, Trading Order Entry systems, and real-time data synchronization, successfully deployed across UBS Europe locations.• Engineered the James Web Framework, a Spring-like MVC framework, and implemented SAFE, a role-based access control framework, adopted by the whole UBS Wealth Management systems.• Architected and built a lightweight portal server supporting the Jetspeed API and JSR 168, successfully integrated into the e-Portfolio system.• Engineered the e-Portfolio Real-time Synchronization system, utilizing messaging queue to synchronize trading data seamless across UBS trading systems.• Designed and implemented a Single Sign-On (SSO) framework, adopted across the whole UBS Wealth Management systems.• Led and managed a software architecture team.Technology Experiences- Java, Spring, Struts, Hibernate, JPA, Message Driven Bean- JAAS, WebSphere TAI/TAI++- Javascript, Html, XML- MQ, WebSphere Application Server, WebSphere Portal Server, Tomcat, Apache Web Server- Ant, Maven.- Derby DB, Oracle DB

• Designed the Dalu B2B e-commerce website, completed the proof-of-concept development of the website in 4 months.Technology Experiences- Java, Javascript, JSP, HTML- Spring, Hibernate, Struts

• Developed systems for the PCCW Collaboration Platform• Implemented Single Sign-On (SSO), Content Management, Workflow, Project Management, and E-Learning modules.• Designed and developed the E-logistics System.• Led a team in the development processTechnology Experiences- Java/J2EE, iLog JRule/JSolver, Java Swing, Message Driven Bean, EJB(Session/Entity Bean), Perl, Ant- Mapinfo, MapXtreme Java, GPS API, Lucene- Oracle, MS SQL Server, Solaris, Tomcat, MQ, JRun/iPlanet, Netscape LDAP.

• Conducted theoretical research and development on GIS graphics rendering and optimization algorithms.