Key Skills

Freelancer Overview

With over 10 years of experience as a backend developer, I have worked extensively with large-scale data systems across e-commerce, logistics, and real-time delivery domains. My expertise includes building and optimizing microservices, designing REST APIs, and developing scalable data pipelines that ensure clean, reliable, and well-structured data—skills directly applicable to data labeling and AI training data workflows. I am highly proficient in Java, Python, and Golang, and have integrated backend services with databases like PostgreSQL, MySQL, and MongoDB, as well as messaging platforms such as Kafka. My experience deploying and maintaining distributed systems on AWS, Azure, and Kubernetes gives me a strong foundation in handling production data, monitoring data quality, and automating data processing tasks. I am adept at collaborating with cross-functional teams to ensure data integrity and accuracy, which are essential for successful data annotation and AI model training initiatives.

Labeling Experience

Education

Work History