- Experienced of the architecture/mechanism of EAI/ESB system and gateway.

- Experienced in the development of gateway, such as SOAP service or REST service, conversion of data object, many security control mechanism including encryption/decryption, signature/verification and hash, like 3DES, RSA, OAEP, etc.

- Experienced in system integration by leveraging multiple protocol, such as socket, web services(SOAP and RESTful), message queue, http/https with ssl or mtls, FTP/FTPs, SFTP, etc.

- Experienced in the development Spring/Spring Boot/Spring Cloud framework.

- Experienced of design pattern/object oriented programming(OOP)/object oriented design(OOD).

- Familiar with gradle.

- Familiar with OpenAPI and swagger 2.0.

- Basic knowledge of using reactive/webflux/non-blocking/streaming API to develop the REST service.

- Participation of projects: TWMP HCE Gateway, FISC QRP Gateway, FISC Paytax Gateway, etc.

- Experience of AP server:

 >> Familiar with using Tomcat, Jboss, Undertow, Apache HTTP Server, Nginx.

 >> Familiar with server tuning of memory size.

 >> Familiar with configuration of SSL. (Use the qualified ciphers, and configuration of one side SSL and bi-directional SSL)

- Experience of microservices:

 >> Familiar with developing standalone java program by using Spring boot.

 >> Familiar with developing RESTful service.

 >> Studying the container management tool--Kubernetes.