Lingnan Liu Email & Phone Number

San Jose, CA, US

Mountain View, California, US

Kafka Broker Team.Working on the Multi-tenancy support of Kafka clusters on Confluent Cloud, including quota enforcement, cluster visibility, Kafka workload placement strategies, etc.Monitoring and improving SLOs across the Confluent Cloud Kafka fleet.

Mountain View, California, US

Kafka Serverless Team.Working on improving Self-Balancing Kafka clusters on Confluent Cloud.Developed a new self-balancing algorithm responsible for balancing the load on all production Kafka clusters on Confluent Cloud.

Seattle, WA, US

- Designed and developed Physical Device Benchmarking, allowing ASR scientists to benchmark language models on real, managed Alexa devices. Physical device benchmarking is a key step in fully-automated ASR model release workflow.- Developed Alexa Device Provisioning workflow, enabling ASR scientists to reserve and configure Alexa devices with various.

Sunnyvale, CA, US

• Owned the Athena Utterance Paraphrasing Workflow (AUPW) backend and frontend. This system serves engineers as a reliable way to generate paraphrases with given utterances and compare their and their corresponding.
• Delivered the Athena Portal Dashboard. This dashboard would show stakeholders the trend of their scheduled test run with configurable metrics. The user can create, modify and delete a graph on the dashboard with simple.
• Trusted as a troubleshooter and mentor for the new teammates in my team to jump start them to our development and test procedure.

Sunnyvale, CA, US

• Built a scalable test solution for French spellings and definitions sourced from Synapse dictionary, and extended it such that we can use the same framework for other locales. Definitions QSR for fr-FR locale, post.
• Built the database access layer to query FUD database for the frequently asked questions, which will be used by multiple parts of Athena eco-system.
• Built the Utterance Replay Service (URS) that will allow engineers to replay questions in test environments to increase our test utterance coverage.
• Built Athena Device Testing Service that will allow us to handle automation requests for testing screens of multimedia devices.
• Athena Service didn't have critical metrics available, which made it hard to monitor the service's status. I made the necessary changes to our code base and added the metrics page which has been very useful to track.
• I worked with Arts & Entertainment team to build a intent analyzing tool so that the team have a clean way to fetch, store and compare DCQS intents and NLU intents in a highly configurable way.

Armonk, New York, US

Developing and testing a complicated, market-based data center monitor and control software - VMTurbo Operations Manager.I built an automated testing framework based on Robot Framework for the Operations Manager. This automated testing framework is meant to help System Test Engineers on the regression tests and hopefully, the System Test Engineers will.

Verified 79 ARM and Thumb instructions supported by an in-house pre-designed single cycle processor. Redesigned and tested 8 bugged instructions. Finished a detailed document of the entire instruction set. Proposed three major improvement advices (Pipelining, Superscalar and OOO) with their design sketches to the technical group for further development.

Master'S Degree, Electrical And Computer Engineering

Bachelor'S Degree, Electrical And Electronics Engineering