Chieh-Min Wang

• Silicon bring-up.

• Improved the services’ availability, maintainability and observability by refactoring the infrastructures using container orchestration framework (k8s), IaC (Ansible and k8s) and several monitoring tools (Elastic stack, Prometheus…etc).
• Reduced the web request p99 latency of services running in a virtualized environment from 40s to 1s by adjusting the overcommited cpu and memory resources to a better allocation to reduce the VM memory page fault rate and CPU steal time. Improve the performance of service background workers by successfully scaling the workers to fully utilize the available CPU resources on the system.
• Ensured the GDPR compliance of collected data by designing and implementing a data pipeline to make sure the data content align with the pre-defined schema. Improved the the data ingesting performance by identifying the bottlenecks and separating the stateless part and stateful part to scale-out the services.
• Achieved 1,000 connection per second and 200,000 concurrent connections for the in-house traffic monitoring and deep packet inspection solution on the router platform with limited hardware resources by leveraging the Linux netfilter to design a flexible offloading framework.

I am a Android developer responsible for building a new O2O e-commerce app and won the best internship award for engineering group.

Use Java to build tools to assure quality and find bugs in the CD pipeline.