Chenrui Zhang

About Chenrui Zhang

About MeHi! I\'m a Software Development Engineer and a Master\'s graduate in Computer Engineering (May 2025). I\'m passionate about building reliable and scalable systems, and I\'m actively looking for SDE roles.I have hands-on experience with real-world projects, including a learning management system (LMS) and an AI-powered real-time communication platform. My work spans backend architecture design, RESTful API development, token-based authentication, Redis caching optimization, and frontend-backend system integration.🧰 Tech StackJava · Python · JavaScript · Spring Boot · Redis · MySQL · Git · React · AWS · Docker Career ObjectiveI\'m actively seeking a full-time Software Development Engineer (SDE) role. I\'m excited to contribute to high-impact engineering teams and build scalable, maintainable systems. Contact: c••••••••@gmail.com

Experience

1. Software Engineer

   Coursistant Inc

   Sep 2024 — Present

   Designed end-to-end system architecture for a Canvas-inspired LMS, defining core user flows for instructors, students, and AI-powered teaching assistance in collaboration with product stakeholders and a cross-functional engineering team.Architected a cloud-native RESTful backend using Spring Boot and AWS API Gateway, sustaining high peak traffic during assignment deadlines while maintaining consistently low p99 latency.Optimized MySQL data models and query performance by introducing composite indexes, connection pooling, and a Redis caching layer, reducing avg response time by 72%(700 ms → 200 ms) across high-traffic LMS workflows.Built a RAG-based semantic retrieval system over large-scale course content using hybrid semantic chunking, improving information retrieval accuracy substantially for AI teaching assistants.

Education

• New York University

  Master of Science - MS, Computer Engineering

• University of California, Davis

  Bachelor of Arts - BA, Economics

• University of California, Davis

  Bachelor of Science - BS, Computer Science