Johnny He
Back End Developer at Walmart Global Tech
Jersey City, New Jersey, United States
Summary
👤
Senior🎓
Top SchoolJohnny He is a back-end developer with 9 years of experience building scalable, event-driven microservices using Java 11, Spring Boot, and Apache Kafka, currently contributing to Walmart Global Tech. He has delivered production systems across healthcare, e-commerce, and commercial real estate that handle thousands of daily users and millions of records, and specializes in cloud-native deployments on AWS with Docker and GitOps-style CI/CD. Johnny designs high-throughput data models with Cassandra and MongoDB and implements security and compliance-aware APIs using Spring Security (OAuth2 + JWT). He is a strong proponent of testable, maintainable code, leveraging TestContainers and MockKafka for robust integration testing. With a research background in electrical and computer engineering from Stevens Institute of Technology, he brings applied machine learning and systems-level insight to backend architecture and performance tuning.
9 years of coding experience
7 years of employment as a software developer
Master of Science - MS, Electrical Engineering, Master of Science - MS, Electrical Engineering at Stevens Institute of Technology
Github Skills (9)
lora8
fine-tuning7
llm6
llama5
autonomous-driving4
mistral4
gemma3
canvas1
javascript1
Programming languages (1)
Github contributions (5)
Freelancerhu/Canvas-Download
Nov 2016 - Nov 2016
Contributions:4 pushes in 1 day
hydrodog/CPE810C_2016F_Canvas
Nov 2016 - Dec 2016
Contributions:19 commits, 16 pushes in 1 month
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