Xiaoyu Que
Senior Software Engineer
Summary
Multi-talented Senior Software Engineer successful completing simultaneous projects. Be familiar with high-performing micro service infrastructure. Decisive leader and reliable team builder with results-focused and driven approach.
Overview
4
4
years of professional experience
7
7
years of post-secondary education
Work History
Senior Software Engineer
Disney+ Hotstar
03.2024 - Current
- Led architecture discussion, driving tech designs and implementations on building 10 million DAU search service across 20+ countries.
- Coordinated with other engineers to evaluate and improve search user experience targeting on clickthrough rate (CTR) and search conversion rate(SCR) metrics.
- Led software development initiative as primary point-of-contact for P0 projects, delivering project reports and milestone updates.
- Provided guidance and mentored less-experienced staff members.
Software Engineer II
Disney+ Hotstar
06.2022 - 03.2024
- Migrated on-premise search engine to AWS, building monitoring and alerts to track cluster status and service performance, maintaining high available search clusters.
- Developed semantics search service encompassing query correction, implementation, translation and understanding, leading to enhanced search functionality and user experience for 10+ languages.
- Participated in high-scale projects to handle 50M concurrent users during live matches and serving as on-call shadow marshal, successfully scaling search service to support 1M RPM with p99 latency under 200ms.
Software Engineer Intern
Disney+ Hotstar
06.2021 - 12.2021
- Designed and launched multiple microservices from ground up, including user management system and trending services that provide popular search functionality.
- Supported continuous integration and deployment processes by setting up and configuring CI/CD pipelines for service deployment using tools such as GoCD, GitHub Actions.
Software Engineer Intern
Apple
06.2020 - 06.2021
- Developed automated test scripts for unit testing, ensuring optimal software quality before deployment.
- Built internal IDE Tools, analyzing software performance metrics to identify areas for improvement and implement necessary changes to optimize system efficiency.
Education
Master of Science - Computer Science
Beijing University of Posts And Telecommunications
Beijing, China 05.2019 - 05.2022
Bachelor of Science - Information Engineering
Beijing University of Posts And Telecommunications
Beijing, China 05.2015 - 05.2019
Accomplishments
- ElasticSearch Migration
Tech stack: AWS, Terraform
Independently led the migration of the search engine from Lucene to ElasticSearch, and then to OpenSearch, while setting up retrieval architecture and deploying on Elastic Cloud/AWS OpenSearch Service. Utilized Terraform for deployment and contributed to the ElasticSearch/OpenSearch open-source codebase and supported features like Hebrew language plugin, handling high-concurrency scenarios for live matches with requirements of 20k RPS for search service concurrency. Implemented monitoring and alarms via CloudWatch.
Metrics Improvement: SCR +1.6pp CTR +3pp
- Search Query Intent Recognition
Tech stack: PySpark, SQL
Utilized Spark for analyzing user activity data and aggregating users with similar behaviors from 100M events daily via Airflow at AWS EMR, enabling query correction, rewriting and completion features for users.
Metrics Improvement: SCR +1.2pp CTR +0.2pp
- 50M Concurrency Project
Tech stack: Java, Prometheus
Built high-performance Java Spring micro-service GraphQL interfaces, enabling cache layer, mitigating scaling issues such as p99 latency, max connections capacity. Serving as an on-call shadow marshal, providing support and ensuring quick resolution of issues companywide.
- Search Upstream Indexing System
Tech stack: Kafka, Java
Migrated search indexing system from database to Kafka stream to enhance scalability and real-time processing capabilities while ensuring 100% accuracy. Achieved seamless transition and maintained stringent real-time latency requirements for optimal system performance.
Timeline
Senior Software Engineer
Disney+ Hotstar
03.2024 - Current
Software Engineer II
Disney+ Hotstar
06.2022 - 03.2024
Software Engineer Intern
Disney+ Hotstar
06.2021 - 12.2021
Software Engineer Intern
Apple
06.2020 - 06.2021
Master of Science - Computer Science
Beijing University of Posts And Telecommunications
05.2019 - 05.2022
Bachelor of Science - Information Engineering
Beijing University of Posts And Telecommunications
05.2015 - 05.2019
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