Experience

Where I've worked & studied

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Professional experience

  1. Teaching Assistant — Cloud Infrastructure and Services (14-848) · Carnegie Mellon University
    Aug 2026 – Present

    Pittsburgh, PA ›

    • Support the 14-848 Cloud Infrastructure and Services course: office hours, assignment/project design, and grading.
    Cloud Teaching
  2. Software Engineer Intern · ENFOS
    May 2026 – Aug 2026

    Durham, NC ›

    • Designed and implemented a scalable ReAct-based multi-agent architecture for 100+ tools through a tool-search tool, reducing average tool-calling latency by 18% while improving tool-selection accuracy by 40%.
    • Simplified and refactored MCP agent context engineering with hybrid retrieval (BM25 + semantic search) over messages, answers, and attachments for long-term memory plus a verbatim window for short-term — cutting average prompt token cost by 61% while preserving answer quality across 100+ turns under p95 latency of 200ms.
    • Architected and provisioned AWS-based agent infrastructure using EventBridge, SQS, Lambda, DynamoDB, Bedrock, and AOSS for async attachment ingestion, vector retrieval, and long-term agentic memory.
    • Built an async, scalable document lifecycle (upload/update/delete/bulk import/secure/password-required) using AWS SQS, Lambda, S3, DLQ, ECS Fargate, and Bedrock KnowledgeBase — ingesting and indexing 500M documents across 100K sites.
    • Collaborated with UI/UX and product teams to deliver user-friendly charts, streamed hints/summaries over SSE, and citations for a well-rounded SaaS AI chatbot/agent.
    • Leveraged Claude Code (subagent orchestration, skills, commands, hooks, plugins) to accelerate design, planning, implementation, debugging, and testing.
    AWS Bedrock DynamoDB MCP Multi-Agent Claude Code
  3. Teaching Assistant — Distributed Systems (14-736) · Carnegie Mellon University
    Jan 2026 – Apr 2026

    Pittsburgh, PA ›

    • Hosted office hours twice a week, answering programming, concept, and logistics questions from 20+ students.
    • Maintained and contributed to the course codebase through GitHub issues, CI/CD, and PRs.
    • Actively engaged in course design and grading for assignments and projects.
    Distributed Systems Teaching Go
  4. Research Assistant · Tsinghua University
    Jul 2024 – Jul 2025

    Beijing, China ›

    • Worked at the Beijing National Research Center for Information Science and Technology (BNRIST) under Dr. Sicheng Zhao, on an AI4Sci project assisting psychological experts with LLM-automated mind-mindedness analysis for parent-child interaction research.
    • Implemented a hierarchical multi-class classification algorithm fine-tuning pretrained LLMs (BERT, LLaMA) for corpus analysis, achieving 82.3% accuracy and 82% macro F1, outperforming all baselines.
    • Collaborated with psychology faculty on both technical modeling decisions and non-technical research framing.
    LLM NLP BERT LLaMA PyTorch
  5. Backend Software Development Intern · Chinasoft International
    Jun 2023 – Aug 2023

    Tianjin, China ›

    • Drove a backend Hive/HDFS MapReduce workflow over 4M+ records, boosting query performance by 32%.
    • Delivered Spring Boot backend services and REST APIs for interactive data analytics, coordinating closely with frontend engineers and non-technical designers to ship features.
    • Engineered MySQL ingestion and streaming using Sqoop, Kafka, and ZooKeeper, ensuring reliable data flow and reducing end-to-end processing latency by 27%.
    Spring Boot Hadoop Kafka MySQL REST
  6. DevOps Engineer Intern · LongShine Technology
    Mar 2023 – May 2023

    Tianjin, China ›

    • Automated 8+ daily maintenance tasks with Shell/Python, improving system response time by 18%.
    • Drove CI/CD pipeline modernization with Jenkins, Docker, and Kubernetes, cutting deployment errors by 45% and increasing uptime to 99.7%.
    Jenkins Docker Kubernetes Shell CI/CD

Education

  1. M.S. in Information Networking · Carnegie Mellon University
    Aug 2025 – Dec 2026

    Pittsburgh, PA · GPA 3.86 / 4.0 · College of Engineering ›

    • Coursework across distributed systems, database internals, cloud infrastructure, and machine learning.
    Distributed Systems Databases Cloud
  2. B.E. in Information Security · Nankai University
    Sep 2021 – Jul 2025

    Tianjin, China · GPA 3.71 / 4.0 · College of Cyber Science ›

    • Strong foundation in computer systems, security, algorithms, and software engineering.
    Systems Security Algorithms