- Micro-service SDK development with service resilience, route relay(like canary test, multi-site redundancy) and stuff related with service governance.- Generic Service abstraction as communication protocol. - Service dashboard, metrics, distribution log, and Cloud native infra integration.

Python, Cloud, Container, Golang- SaaS-based survey platform in Lark eco.- SaaS-based eLearning platform in Lark eco. (Engineering Owner).

JAVA, Design, Metric, TSDB, GoLang, InfluxDB, DogStatsD, Prometheus, Druid, AWS, Ansible, Logstash, Docker/Swarm/Kubernetes, Kafka(with SSL, SASL GSSAPI), Kafka StreamingInvolved in all activities of building Metric instrumentation module based on OSGI responsible for gathering metric from instrumented applications, shipping and visualizing in Grafana.Build up streaming pipeline processors running as container to enable real time analysis to get instant insight using Kafka eco-system, e.g. Kafka connect for sinking data to InfluxDB for data visualization.Participate into pipeline technology stack integration, e.g. Landoop UI, Kafka Manager and Portainer. As an internal real-time data analysis platform, initializing, designing and building up Pipeline Composer from scratch. This project brings users the benefit of only an enter away from all required stuff. It hides pipeline topologies built for analysis and just sees it as a black box, that prevents configuring complicated manual tasks which are also error prone and shortens learning curve significantly.Develop Ansible script for provisioning Kafka cluster with SSL and SASL security equipped.

Focus on distributed crawler development and delivery data sync up from different open platforms with prompt update and low latency, daily traffic volume goes up to 20M and build up data pipeline for real time analysis to support strategy optimization and resources saving.Sole architect of Financial Audit Platform for 8 months which supports more than 10M transactions on a daily basis, more than 10K/s DB write transactions supported as well as providing SPI extension framework for more flexibility of new service creation and incubation. Additionally a variety of reports covering many dimensions contribute to operation decision making.Mainly used technologies : J2EE, MySQL, Bash, UML, SpringMVC, MyBatis, Redis, Kafka, ElasticSearch, Hive, ZooKeeper, SOA, Thrift, Tomcat, Bootstrap, OneAPM, MicroService

Developed the Quota common service for telecomunication level access serving as a throttling module to control the accessment of any resource protected, benchmarked more than 10k+ throughput in a small scalled deployment.Providing IOS AOG solution to Ericsson as a VAS(Valued Added Service) to enable telephone capacity while using Apple series product, support more than 50M users serving at the same time and disaster transfer with Geo-Red(Geographical Redudancy) to ensure site availability to the most.Migration tool design and implement for ECE which supports any transition between versions.Internal code reviewer and team competence build up in telecom domain.Mainly used technologies : J2EE, Scala, Rest, OAuth, OCCAS, MySQL, Redis, Spring, UML

Engaged into SS7 Signalling solution development, mainly occupied on the IMS SIP domain, including Tieto SIP stack implementation and customized SIP UA application, such as B2BUA, TAS, TEVAL and etc.Core person of SIP team and outstanding trouble shooterMainly used technologies : Linux C, C++, Make, GCC, TCL scripts, Jenkins, J2SE, NIO, SIP, H.248, PostgreSQL

Software engineer focused on China Telecommunication's IN related service, evolve the traditional 114 system based on the IN infrastructure to new versioned Besttone system based on soft-switch.A novice of team leader after March of 2009.Mainly used technologies: J2EE, 3pp prevalent frameworks(Hibernate, Spring, Compass, Jasper Report), VoiceXML(IVR), Delphi for Agent, Oracle RAC