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Zhicheng Zhong

New York|Open to Relocate|202-725-1579|portfolio|zzcjob397@gmail.com

Experience

Madison-DavisOct 2024 - Present
Software DeveloperNew York, NY
  • Drove the migration of monolithic payment orchestration services into horizontally scalable microservices on OpenShift (Kubernetes) using Java and Spring Boot, enabling 3x peak traffic growth and eliminating peak-hour throughput bottlenecks.
  • Implemented Transactional Outbox with CDC (Debezium) to decouple email receipt generation from the core payment workflow, eliminating database-Kafka dual-write inconsistency and enabling reliable at-least-once event publication with idempotent consumers.
  • Built resilient Kafka consumer failure handling with exponential backoff, jitter, circuit breaking, and DLQ routing, preventing retry storms during downstream email-provider outages and reducing long-tail notification failures by ~90%.
  • Partnered with infrastructure, QA, and application teams to support CAT & production releases, troubleshoot payment processing issues, and ensure high service availability across multiple deployment environments.
FiservJuly 2023 - Oct 2024
Software EngineerBerkeley Heights, NJ
  • Developed a Redis cache-aside layer in Java (JavaEE) to reduce database reads for client configurations, cutting average API latency by over 50% and restoring SLA compliance.
  • Implemented a high-throughput Kafka consumer group with batch processing (100 msgs/batch) to ingest customer configuration updates into Redis, sustaining ~100k msgs/sec under production load.
TencentJuly 2020 - Oct 2020
Backend Developer InternshipShenzhen, China
  • Refactored a KPI anomaly detection platform for QQ Browser using Go and gRPC, enabling minute-level multi-algorithm anomaly detection and root cause analysis with results persisted in Druid OLAP DB, cutting KPI triage time from hours to minutes.

Projects

Options Market Intelligence Agent
  • Built an AI-powered options research agent using Python and FastAPI that automatically retrieves portfolio holdings from Robinhood, computes Gamma Exposure (GEX), Volatility Exposure (VEX), and historical/current implied volatility (IV) metrics, and generates interactive heatmaps for pre-market analysis.
  • Integrated the Gemini API to analyze GEX, VEX, IV trends, and portfolio positioning, producing structured pre-market reports with market outlook, key support/resistance levels, volatility regime assessment, and risk-aware portfolio insights.

Skills

Languages: Java, Python, Go

Backend & Distributed Systems: Spring Boot, RESTful APIs, Microservices, gRPC

Databases & MQ: PostgreSQL, MySQL, MongoDB, Redis, Oracle DB, Kafka

Cloud & DevOps: AWS (EC2, S3, RDS, IAM), GCP, Docker, Kubernetes, Helm, CI/CD, Git, OpenShift

AI: RAG, LangChain, LangGraph, Vector Search, Prompt Engineering, Codex, Cursor, Claude

Education

Georgetown University, Washington, D.C - M.S. in Computer Science

Aug 2021 - May 2023

Nankai University, Tianjin, China - B.S. in Computer Science

Sep 2017 - Jun 2021

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