Chao Liu Email & Phone Number

Shenzhen, Guangdong, China

Responsibility:- 2+ years of backend development of various information flow and IM platforms, such as Tencent Kandian, QQ browser, and QQ Little World.Contribution and Achievement:- Conducted the rebuild of the advertisement system of QQ commercialization to improve efficiency and lower the cost of maintenance.- Lead the development of the Task sub-system of the 2021 Spring Festival Event held by the QQ browser under millions of requests per minute.- Handled the… Show more Responsibility:- 2+ years of backend development of various information flow and IM platforms, such as Tencent Kandian, QQ browser, and QQ Little World.Contribution and Achievement:- Conducted the rebuild of the advertisement system of QQ commercialization to improve efficiency and lower the cost of maintenance.- Lead the development of the Task sub-system of the 2021 Spring Festival Event held by the QQ browser under millions of requests per minute.- Handled the aftermath of Tencent Weibo shutting down. Including the analysis of the system of Tencent Weibo, exporting user data, and providing backup tools.- Gained Outstanding Contributor in 2020.H2, Good+ Contributor in 2021.H1 and 2021.H2.Tech used: Golang, MySQL, Redis, Elastic Search, Nginx, Kafka, gRPC, tRPC, opentracing, ELK, protobuf, JSON, Git, Docker, Kubernetes, Tencent Cloud Show less

Shenzhen, Guangdong, China

Responsibility:- Development of the education platform, such as Tencent Class, and Penguin Tutoring.Contribution:- Introduced new technologies to our department, e.g., Kubernetes, Docker, gRPC, open-tracing (Jaeger), etc.- Developed a scaffolding framework based on gRPC, integrated with the ability of observability integrated. (logging, tracing (open-tracing) and metrics (statsd), etc.)- Refactored existing systems using new technologies introduced. Problem-solving speed… Show more Responsibility:- Development of the education platform, such as Tencent Class, and Penguin Tutoring.Contribution:- Introduced new technologies to our department, e.g., Kubernetes, Docker, gRPC, open-tracing (Jaeger), etc.- Developed a scaffolding framework based on gRPC, integrated with the ability of observability integrated. (logging, tracing (open-tracing) and metrics (statsd), etc.)- Refactored existing systems using new technologies introduced. Problem-solving speed has increased tens of times.- Developed and maintained 2-3 sub-systems.Tech used: Golang, MySQL, Redis, Elastic Search, Nginx, Kafka, gRPC, opentracing, jaeger, TICK stack, ELK, protobuf, JSON, Git, Docker, Kubernetes, Tencent Cloud Show less

Shenzhen, Guangdong, China

Useus is a start-up company with approximately 100 employees, mainly focus on Payment system and Supply chain. As the CTO, I managed the entire tech team. Reporting to the CEO.Responsibility:- Managed a 30+ staff of full-featured teams (iOS, Android, Web, Backend, Operation, and Test). Created a good engineering culture which is open, equal, and efficient with good teamwork. - Ensured that the technological resources met the company's short- and long-term… Show more Useus is a start-up company with approximately 100 employees, mainly focus on Payment system and Supply chain. As the CTO, I managed the entire tech team. Reporting to the CEO.Responsibility:- Managed a 30+ staff of full-featured teams (iOS, Android, Web, Backend, Operation, and Test). Created a good engineering culture which is open, equal, and efficient with good teamwork. - Ensured that the technological resources met the company's short- and long-term needs.Contribution and Achievement:- Achieved 100% development performance improvement for the team during this period.- Established a stable and efficient tech stack suitable for our team.- Achieved outstanding employee award in 2016.Tech used: C++, Python, Golang, MySQL, Aerospike, Elastic Search, Nginx, Kafka, NSQ, ZeroC ICE, Tornado, protobuf, JSON, ELK, Git, Gitlab, Jira, Jenkins, Docker Show less

Shenzhen, Guangdong, China

Responsibility:- Development of the core functionality and application of QQ Group, which is used by hundreds of millions of customers daily.Contribution and Achievement:- Refactored a system with extremely high concurrency (up to 2m/min) and lowered the resource requirements by 100%.- Developed several applications independently.- Participated as the core developer of the team and joined the building of a common library and framework.- Achieved a 4-star employee… Show more Responsibility:- Development of the core functionality and application of QQ Group, which is used by hundreds of millions of customers daily.Contribution and Achievement:- Refactored a system with extremely high concurrency (up to 2m/min) and lowered the resource requirements by 100%.- Developed several applications independently.- Participated as the core developer of the team and joined the building of a common library and framework.- Achieved a 4-star employee (top 20%) award in 2014.Tech used: C++, protobuf, JSON, Nginx, and tons of software that could only used internally Show less

Shenzhen, Guangdong, China

Uxin is a company that provides VoIP communication services. Approximately 200 staffs when I worked there. I reported to the team leader who in charge of iOS and Window application team.Responsibility:- Development of the Uxin VoIP telecommunication Windows client application.Contribution:- Produced clean, efficient code based on specifications.- Testing and deploying programs and systems.- Troubleshoot, debug, and upgrade existing software.- Gather and… Show more Uxin is a company that provides VoIP communication services. Approximately 200 staffs when I worked there. I reported to the team leader who in charge of iOS and Window application team.Responsibility:- Development of the Uxin VoIP telecommunication Windows client application.Contribution:- Produced clean, efficient code based on specifications.- Testing and deploying programs and systems.- Troubleshoot, debug, and upgrade existing software.- Gather and evaluate user feedback.- Recommend and execute improvements.Tech used: C++, MFC, duilib Show less

Master By Research, Computer Science

Bachelor Of Engineering - Be, Computer Science