Aug 2024 – Feb 2026 · 1 yr 6 mos · Greater Seattle Area · Remote

• 1. Developed support for running Apache Flink batch-mode queries on Confluent Cloud by enhancing query planning, scheduling, and storage integration.
• 2. Designed and implemented a benchmarking framework to validate system performance and guide optimization.

May 2020 – Aug 2024 · 4 yrs 3 mos · Greater Seattle Area · On-site

• 1. I worked on the BigQuery performance/query engine team to help BigQuery to analyze the price/performance stats, pinpoint the bottleneck, propose solutions to mitigate the issues, and deliver the solutions.
• 2. I led from end to end the cross org effort to migrate BigQuery stack from the existing x86 platform to a new CPU architecture platform, which includes initial planning and estimation, behavior evaluation and analysis, deployment plan, and production traffic ramp up.
• 3. I led the effort in building up infrastructures to help BigQuery to better detect performance regressions.
• 4. I led the effort in building up an infrastructure to easily measure the macro benchmark of BigQuery, and spread out this measurement as a culture to the entire org.

Nov 2018 – May 2020 · 1 yr 6 mos · Greater Seattle Area

• Led Consumer side customer experience improvement projects

Nov 2014 – Oct 2018 · 3 yrs 11 mos · Greater Sydney Area

• a TripAdvisor company, is the world leader in finding amazing tours, activities, and travel experiences in destinations worldwide.
• As a key member of a customer-care-oriented, cross-functional developer team, I am able to effectively and efficiently address the key points of requirements from Program manager, implement them with high-quality code, and deliver the product in a timely manner, even though sometimes I am given jobs which involves new technologies that require a sharp learning curve.

May 2012 – Sep 2014 · 2 yrs 4 mos

• As a software engineer at Allhomes, I worked closely with the CIO to design the structure of new subsystems, new features of the web program, and the improvements to the existing workflows. I evaluated the data structure of third-party data providers, designed the XML schema, which can transform the source data to the local models, and built up the correct adapter/harvester to obtain the data in the desired format and worked closely with the end user to improve the user experience.
• My main achievements in Allhomes are as follows:
• Consistently achieving deliverable outcomes within time frames.
• Manage multiple projects/tasks simultaneously and achieve all desired outcomes
• Delivered reliable and stable subsystems such as a outbound XML file subsystem with a new schema, a new reporting subsystem which gathers information from various sources, and a series of web API’s which exchange data with a third-party provider (SalesForce).

Oct 2009 – Feb 2012 · 2 yrs 4 mos · Canberra, Australian Capital Territory, Australia

• Atlas of Living Australia was a three-year project sponsored by CSIRO which commenced in 2009. The budget of this project is was $30 million with an Australian wide team of over 60 people. The development team consisted of 10 developers with me as a Java developer. My initial 6-month contract was extended to 2.5years. During my two and a half years working on this project, I devoted myself to the development of this project.
• My main achievements in this role are as follows:
• Extensive exposure to many modern J2EE technologies
• 2 extension to my contract due to my work ethic and performance
• Manage multiple projects/tasks simultaneously and achieve all KPI’s for the project

Aug 2008 – Oct 2009 · 1 yr 2 mos · Canberra, Australian Capital Territory, Australia