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Lê Duy Tân User

@lduytnuser

Message

I build reliable backend and full-stack applications with Python, FastAPI, React, and scalable data systems.

Vietnam

Message

What I'm looking for

I'm looking to strengthen practical software engineering skills by building robust enterprise systems and applying industry best practices in a structured team environment.

I'm building and improving Cigro's Endash data analytics platform, where I debug backend issues, optimize REST APIs, write unit tests, and implement real-time SSE streaming for workflow agents and chatbots.

Previously, I developed a FastAPI and React bookstore SPA at NashTech, improving SQLAlchemy query performance by 40% and achieving 90% Pytest coverage. I've also built HR management and e-commerce applications using Spring Boot, Node.js, React, Redis, MongoDB, MySQL, and secure role-based access control.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Cigro

Aug 2025 - Present (1 year 1 month)

Fixed bugs and improved system stability by analyzing logs and debugging backend issues. Optimized RESTful APIs and implemented SSE for real-time streaming.

Python fastAPI BigQuery Trino Datadog REST APIs SSE Unit Testing

Education

Degrees, certifications, and relevant coursework

VNUHCM - University of Science

Bachelor of Science, Information System

2020 - 2024

Pursued a Bachelor of Science in Information System, covering data structures, software methodology, algorithms analysis, database management, and object-oriented programming.