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Shilong Li
Intern Software Engineer specializing in backend and distributed systems
San Jose, CASoftware Engineer Intern1 years experienceInternMedia & EntertainmentAdTechTechnology
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About
Backend engineer with experience at ByteDance (TikTok monetization) and Baidu, plus a personal real-time course booking/tracking platform built with FastAPI, Postgres, and Redis. Demonstrates strong concurrency and reliability engineering (Redis distributed locks with TTL extension, idempotent event processing) and practical DevOps skills (Kubernetes/Helm, GitLab CI/CD, Docker build-time optimization).
Experience
Software Engineer InternByteDance (TikTok) Inc.
Lead Backend Engineer (Unpaid)GoodRunss Inc.
Education
University of Illinois Urbana-Champaignmaster, Computer Science (2025)
The Ohio State Universitybachelor, Computer Information Science (2023)
Key Strengths
- Built FastAPI backend reducing API response time by 30%
- Designed Redis distributed lock for booking to prevent double-booking race conditions
- Handled lock-failure edge cases with TTL + lock extension mechanism
- Scaled system to support ~500 concurrent users
- Kubernetes deployment experience for TikTok monetization microservices (Java/Spring Boot)
- Optimized CI/CD by implementing Docker layer caching, cutting build time from 8–10 min to 2–3 min
- Executed phased infrastructure change (RocketMQ to synchronous calls) using feature flags and gradual traffic shifting
- Streaming/event processing experience with Kafka-like systems; ensured ordering and idempotent processing with DB transactions
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