Software Engineer Data Analyst

YING ZHANG

* Mountain View, CA 412-***-**** # **********@*****.*** ï yingzhang1997

EXPERIENCE

University of Pittsburgh Medical Center (UPMC) Nov 2021 – Jun 2025 Software Engineer Pittsburgh, PA

• Engineered a microservices-based, multi-tenant SaaS platform using Spring Cloud and Redis, and delivered 2000+ healthcare simulation classes annually at 11 satellite sites with 99.8% uptime, subscribed by leading medical centers including Johns Hopkins, MD Anderson, and UCLA.

• Implemented SOC 2 and HIPAA compliant single sign-on with Azure AD via Federation API, using OAuth for authentication and role-based access control with Redis caching for authorization, standardizing secure user access and eliminating configuration errors.

• Built an event-driven notification system using AWS Lambda, SQS, and SES for asynchronous role-based email delivery, enabling reliable message dispatch through decoupled processing and automatic failure recovery.

• Designed a fault-tolerant ETL pipeline using Spring Batch to process exam results from AWS S3, performing validated multi-table writes to MySQL via Hibernate, automating ingestion, cutting processing time from hours to minutes, and ensuring high data integrity.

• Deployed proactive monitoring using AWS CloudWatch metrics and ELK Stack log analysis, detecting 15% of latency and error issues before customer reports and reducing support tickets by 30% through early root cause resolution. Johnson & Johnson Jan 2021 – Aug 2021

Data Analyst Shanghai, China

• Collaborated with Supply Chain team on A/B tests for inventory distribution, using pandas for data preprocessing and Power BI for visualization, reducing stockouts by 10% and creating reusable dashboard templates shared as best practices with the Japan team.

• Led knowledge transfer during team transition by onboarding and training 3 employees in Agile methodologies, and creating comprehensive documentation that secured 0 operational disruptions and accelerated new leadership ramp-up within 3 weeks. PROJECTS

Prime Day E-commerce Microservices Java, Spring Boot, Spring Cloud, Kafka, Redis, Kubernetes, AWS

• Built a scalable Spring Cloud microservices platform processing 8K RPS Prime Day traffic with high reliability and throughput.

• Architected distributed transactions with Kafka Saga, ensuring payment-inventory consistency at 360 TPS under node failures.

• Prevented overselling during flash sales using Redis Lua locks, supporting 5K concurrent users with P99 latency under 50ms.

• Orchestrated 6 microservices on AWS EC2 using Kubernetes and Eureka, maintaining 99.99% uptime with rolling deployments.

• Throttled peak traffic with Kafka async workflows and token bucket limiting, blocking all malicious traffic via dead-letter queues. Semantic Search Course Website MongoDB, Junit, Mockito, Elasticsearch, Azure, CI/CD

• Built a CS course website using natural language processing to match student descriptions with relevant courses.

• Integrated BERT embeddings with Elasticsearch’s k-NN vector search to improve similarity calculation, increasing cross-disciplinary course selection accuracy by 15% for non-technical students.

• Optimized MongoDB performance using compound indexing and aggregation pipelines, speeding up complex course queries by 2 .

• Achieved 80% code coverage with JUnit for unit testing and Mockito for dependency mocking, ensuring reliability.

• Deployed on Azure App Service using Azure DevOps CI/CD pipeline, built with Node.js and Express. EDUCATION

University of Pittsburgh Aug 2019 – Apr 2022

Master of Science in Information Science Pittsburgh, PA Coursework: Data Structures and Algorithms, Computer Systems, Machine Learning, Web Development, Software Engineering Xi’an University of Architecture and Technology Sep 2015 – Jun 2019 Bachelor of Science in Construction Management Xi’an, China Coursework: Computer Programming, Data Processing and Analysis, Database Systems SKILLS

Languages: Java, Python, PHP, C++, JavaScript, TypeScript, Golang, R Databases: MySQL, PostgreSQL, MongoDB, Redis

Frameworks: Spring Boot, Spring Cloud, Spring Cloud Gateway, Eureka, Laravel, Node.js, Express, React Tools: Git, Docker, Kubernetes, AWS, Azure, GCP, Kafka, Elasticsearch, OAuth, OpenFeign, CI/CD

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