Principal Engineer

• Dec 2021 - Present

Senior Software Engineer

• Jun 2021 - Dec 2021

Senior Software Engineer

• Feb 2017 - Jun 2020

- Collaborate with the team members in Taiwan, the US, and India to maintain the US healthcare legacy system and migrate them to AWS. Leverage different frameworks/tools, such as Java, Spring Boot, Spring Data, AWS Aurora, Route 53, Parameter Store, Secrets Manager...etc., when migrating the legacy system to AWS. - Design the data sync architect and responsible for the publisher which leverages AWS Cloudwatch, Lambda, SNS, SQS, and Aurora. - Build the authentication and authorization module on top of the legacy project with Spring Security. Show less

Sr. Software Engineer

• Dec 2014 - Feb 2017

Smart Cell Gateway(SCG)- Maintain and add the new features in the communicator module which communicates with max 30,000 APs per second. Use the Spring Integration to handle the APs' status report with different types (JSON and GPB) of status via different protocol, content, and frequency. Leverage JUnit as a testing tool.- Lead five engineers to redesign and migrate the legacy features of the communicator module in the meanwhile switch it’s persistent layer from Cassandra to ElasticSearch.- TPO(Technique Product Owner) of the behind NAT feature also responsible for implementing the GUI and CLI part. Lead the design, arrange the schedule and negotiate the resource with the PLM, QA and RD team to deliver the feature.Virtualization Data Plane(vDP)- Involved the spec. define processes with Agile methodology.- Design and implement the vDP features for GUI and CLI. Show less

Software Engineer

• Nov 2011 - Nov 2014

Virtualization Smart Cell Gateway(vSCG)- Cross-team discussion, define and review the support features for the virtualization product. Design and implement for vSCG GUI setupwizard.- Enhance the GUI and the CLI frameworks to support profiling and responsible for implementing the new features in GUI and CLI.Smart Cell Gateway(SCG)- Maintain and implement the new features of GUI setupwizard for SCG via jQuery 1.6. Based on requirement features using Spring MVC to provide the RESTful API to the front-end and implement front-end display via ExtJS.- Implement CLI features with Groovy. Show less

Senior Enigneer

• Nov 2010 - Oct 2011

Device Management System(DMS) - Clarify customer’s requirement and define the spec. - Responsible for the design of the overall modules' flow. - Implement the ICMP and SNMP utilities with SNMP4J to allow get Router/Switch/Firewall information via SNMP. - Implement the RRD utility with rrd4j to support graphing for time series data. Use the JUnit to write the test cases and have 80% test coverage. - Provide the web service/RESTful to integrate with customer’s different departments. Device Management System(DMS) - Clarify customer’s requirement and define the spec. - Responsible for the design of the overall modules' flow. - Implement the ICMP and SNMP utilities with SNMP4J to allow get Router/Switch/Firewall information via SNMP. - Implement the RRD utility with rrd4j to support graphing for time series data. Use the JUnit to write the test cases and have 80% test coverage. - Provide the web service/RESTful to integrate with customer’s different departments.

Software Engineer

• Aug 2009 - Nov 2010

- Customize and implement the flows based on the BPM product for each customer’s requirement. GUI side using jQuery. Control the GUI to server flow via Struts 1 & 2, and Spring MVC. Using the Spring to manage the resource and the ORM tool is using Hibernate. - Write the Ant script template to trigger getting the latest code via SVN, generate the jar/war files and do the auto-deploy to the specific tomcat. - Customize and implement the flows based on the BPM product for each customer’s requirement. GUI side using jQuery. Control the GUI to server flow via Struts 1 & 2, and Spring MVC. Using the Spring to manage the resource and the ORM tool is using Hibernate. - Write the Ant script template to trigger getting the latest code via SVN, generate the jar/war files and do the auto-deploy to the specific tomcat.