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Le Hoang Quy

Le Hoang Quy

.NET Developer

Thu Duc, HCMC
0965686172

Background


About

About

I am a passionate .NET Backend Developer with hands-on experience in building scalable, high-performance systems, particularly in the medical and education domains. I specialize in API development, background job processing, and designing technical specifications that align with complex business requirements. With strong involvement in projects like blood analyzer systems, I have worked with modern technologies including .NET Core, PostgreSQL, AWS, and Docker. I actively contribute to team success through mentoring interns, providing domain knowledge, and supporting deployment workflows. My background in Agile/Scrum ensures I deliver reliable and maintainable solutions that drive real impact.

Work Experience

Work Experience

  • Backend DeveloperFPT Software

    Sep, 2023 - May, 20251 year 8 months

  • Private Tutor

    Jan, 2021 - May, 20254 years 4 months

    Provided tutoring in programming, OOP, DSA, and Database Management, helping students with projects by guiding them through planning, implementation, and coding best practices tailored to their individual learning needs.

Projects Experience

Projects Experience

  • Blood Analyzers Quality Control System

    Sep, 2023 - Jan, 20251 year 3 months

    Quality control system for blood analyzers including rules and algorithms to check analyzer performance, detect issues, and ensure accurate test results. The system helps labs work more efficiently and maintain high diagnostic standards.

    • Authored and iterated upon Technical Design Specifications (TDS) based on User Stories and Detailed Designs, in collaboration with tech leads and Solution Architects

    • Developed backend code following TDS and took ownership of the Multi-Rules / Westgard rules feature, implementing configurations and evaluation logic

    • Experienced in training and mentoring team's interns.

    • Improved API and background scheduler performance by 10–40%, while creating tools to support Testers and measure system performance.

    • Participated in Scrum/Agile processes, including sprint planning, daily stand-ups, and retrospectives.

    • Techs used: .NET Core 8, EF Core 8, PostgresDB, MediatR, AWS,...

  • Blood Analyzer Data System

    Feb, 2025 - May, 20252 months

    Developed system for a medical project focused on processing, analyzing, and displaying results from blood analyzers. The system acts as a central communication hub between multiple lab devices and handles secure data transmission, result conversions, algorithm execution, and result visualization.

    • Wrote TDS from user stories, reviewed with team leads and implemented backend code accordingly.

    • Implemented background jobs for data ingestion, conversion, validation and integration with proprietary health algorithms

    • Improved system performance by optimizing database manipulation and enhancing logging, resulting in a 30-50% increase in efficiency.

    • Supported deployment and containerization using Docker on Raspberry Pi, including building a script to create packages for easier client usage.

    • Techs used: Python, Streamlit, VueJs, Docker...

  • WePrepClass - SE Department Science Research

    Jul, 2023 - Jul, 20241 year

    A multi-platform education management system designed to streamline interactions between learners, tutors, and administrators by managing class requests, tutor assignments, and course tracking with a shared logic layer across web and mobile apps.

    • Fully design and implement a website to cater to both the administrative functionalities and the customer-side experience of the Tutor Center based on The Clean Architecture applying Domain Driven Design and some design patterns like Mediator and CQRS

    • Techs used: .NET Core 7, EF Core 7 + MS SQL Database, JWT-Bearer Authentication, MediatR, Mapster,LazyCache, Cloudinary, Somee..

Skills

Skills

  • Technologies

    SQL Server

    AWS services

    Streamlit

    Docker

  • Tools

    JetBrain’s IDEs

    Visual Studio

    DBeaver

  • Soft skill

    Analytical and problem-solving skills.

    High sense of responsibility

    Good teamwork

Education

Education

  • Software Engineer, Bachelor, University of Information Technology - HCM VNU

    Sep, 2020 - Mar, 2025

Certificates

Certificates