Yao L. is a Software Engineer at Meta. Colleagues describe him as "I worked with Yao in small bursts over the last 4 years relying on him to provide python code that allowed for command-line automation of complex tasks, in particular for exercising APIs that were also used behind a GUI interface. He was always very helpful to me and others who worked with him. In one instance I used his code, in combination with my own, to simply, rapidly, and repeatedly deploy our entire product stack -- from installation of hardware to the actual application-layer ingestion of data. Recently he delivered a new version that did the same task, with dramatically fewer lines of code, that was more easily understood, and much more resilient (idempotent). I think this shows a great deal of maturity and comfort (in this case with python) that I'm sure can rapidly translate to a large number of applications. Yao's understanding of the application layer of our object product far exceeds my own and this is why I relied heavily on him at the upper layers. All the hard work is much appreciated, Yao, and I highly recommend you to anyone that might be interested.", "Yao is my mentor when I joined EMC 4 years ago and we work together in the same group for Elastic Cloud Storage project (ECS) since that time. He is always energetic and innovative. He also shows a great passion for software technologies and works hard as a project leader of Geo federation, one of the core functions of ECS. Besides, Yao is a good team player who can provide help to the whole team to finish assigned tasks with higher efficiency. In a word, Yao is a skilled software engineer and a great teammate to work with.", and "I worked with Yao on the Elastic Cloud Storage project (ECS) product. Yao mainly focuses on GEO, GEO Passive and etc storage cloud features. He is a great teammate to complete work on time with high quality and also very self-oriented. He contributes his professionalism and diligence to our products for many releases. I believe Yao has the great skillset to fit any software related work. I strongly recommend Yao."