About Me

Hi, I’m Le Van Cuong, a Backend Engineer based in Da Nang, Vietnam with over 5 years of experience designing and developing scalable web services. I specialize in Node.js, NestJS, and AWS, with strong expertise in RESTful API design, microservice architecture, and cloud deployment.

Education

  • Master of Engineering in Information and Communication Technology Soongsil University, Seoul, South Korea (GPA: 4.18/4.50) | Sep 2019 – Aug 2021

  • Bachelor of Engineering in Information Technology Danang University of Science and Technology (GPA: 3.2/4.0) | Aug 2013 – Aug 2018

Experience

Software Engineer at Grid Solutions, Inc. — Tokyo, Japan (Remote) | Sep 2023 – Present

  • Designed and maintained backend microservices using NestJS, TypeORM/Prisma, PostgreSQL, and AWS following DDD and Clean Architecture principles
  • Deployed production services using Serverless Framework and Docker on AWS Lambda, reducing operational overhead by 30%
  • Implemented automated testing using Jest and Supertest, improving code coverage and deployment reliability
  • Mentored junior developers and participated in code reviews
  • Collaborated with DevOps teams to refine CI/CD pipelines using CircleCI

Middle Software Engineer at XB Technology Co., Ltd — Danang, Vietnam | Sep 2021 – Aug 2023

  • Engineered backend services for e-commerce and billing systems using NestJS, TypeORM, and PostgreSQL
  • Designed and integrated RESTful APIs for payment processing with PayPal API, achieving 25% improvement in transaction success rates
  • Implemented real-time data exchange using MQTT for UAV system responsiveness
  • Containerized services with Docker and coordinated Kubernetes deployments
  • Implemented CI/CD pipelines on Github Actions and CircleCI, reducing deployment times to under 5 minutes

Research Assistant at Advanced Network Design & Analysis Lab — Seoul, South Korea | Sep 2019 – Aug 2021

  • Conducted research on Software-Defined Networking (SDN) and Network Function Virtualization (NFV)
  • Authored and presented research in international conferences

Technical Skills

Languages: Java, Scala, JavaScript, TypeScript, Python

Frameworks: Node.js, NestJS, React, Play Framework, FastAPI

Architecture: Domain-Driven Design (DDD), Clean Architecture, OOP, REST API Design, Agile/Scrum

Databases: PostgreSQL, MongoDB, DynamoDB, TypeORM, Prisma

DevOps & Cloud: AWS (EC2, S3, Lambda, API Gateway, DynamoDB, CloudWatch), Docker, Kubernetes, Serverless Framework, CircleCI, Github Actions

Testing: Jest, Supertest, Postman

Side Projects & Interests

In my spare time, I enjoy building hands-on projects that explore different technologies and architectural patterns:

  • URL Shortener API - A full-featured URL shortening service built with NestJS, TypeScript, and a dual-database strategy (PostgreSQL + DynamoDB). Features Clean Architecture, role-based access control, automatic link expiration, and click analytics. A great exploration of API design and scalability.

  • Library Management System - A production-grade REST API built with Java 17, Spring Boot 3, and PostgreSQL. Demonstrates Domain-Driven Design (DDD), Clean Architecture, and Hexagonal Architecture principles with comprehensive authentication, borrowing workflows, and penalty calculation.

  • Quick OTP - A lightweight Chrome extension for managing TOTP-based two-factor authentication. Built with React 19, TypeScript, and Vite. Features multiple QR scanning methods, real-time countdown, and import/export functionality.

Publications & Talks

  • An Extended Agent-Based Mechanism For Testing Service Function Chain (October 2020) Conference presentation on innovative system testing approaches

Download CV

Download my CV here (PDF) for a detailed look at my experience and skills.

Contact