Open to opportunities

Lê Viết Đạt Trọng

@lvitttrng

Message

I build production C#/.NET microservices and REST APIs for identity verification and learning platforms.

Vietnam

Message

What I'm looking for

I'm looking to build reliable backend APIs and microservices in an Agile team, with opportunities to work on Clean Architecture, cloud services, testing, CI/CD, and scalable production systems.

At Trulioo through LAK Solutions, I build and maintain C#/ASP.NET Core microservices that route KYC/KYB identity-verification requests to 20+ external vendors for a multinational compliance platform processing thousands of daily verifications.

I've improved API response times by roughly 20–30% using Redis caching, async/await, and resilient HTTP pipelines, while integrating AWS S3 and DynamoDB. I work with Hexagonal Architecture, SOLID, Strategy and Factory patterns to keep vendor integrations isolated from core domain logic.

Outside my day-to-day work, I architected PTLinker, a full-stack trainer booking platform built with .NET 9, React 19, MySQL, RabbitMQ, Docker, Nginx, and GitHub Actions. I also built backend capabilities for an AI-powered learning platform, including payments, subscriptions, authentication, progress tracking, and production deployment.

I care about dependable releases: I write unit and integration tests with xUnit, Moq, and FluentAssertions, contribute through peer reviews and pull requests, and deliver Jira-driven work in Agile/Scrum teams.

Experience

Work history, roles, and key accomplishments

Current

Backend Developer

Current

Trulioo

Jul 2025 - Present (1 year 1 month)

Developed and maintained a C#/ASP.NET Core RESTful microservice proxying KYC/KYB identity-verification requests to 20+ external vendors. Improved API performance with Redis caching and async/await, cutting response times by 20-30%.

C#ASP.NET Core REST APIs Microservices Hexagonal Architecture SOLID Simple Injector Redis DynamoDB xUnit Moq CI CD Agile Scrum Jira Git Claude Code

Full-Stack Trainer Booking Platform Developer

PTLinker

Jan 2026 - Mar 2026 (2 months)

Architected a 4-layer Clean Architecture solution with CQRS, Repository, and Unit of Work patterns. Secured REST APIs with JWT authentication and role-based authorization, and decoupled email delivery using RabbitMQ.

C#React 19 MySQL RabbitMQ Docker Nginx .NET Aspire Clean Architecture CQRS MediatR AutoMapper JWT Swagger OpenTelemetry GitHub Actions xUnit Moq

Backend Developer

AI Math

Dec 2024 - Mar 2025 (3 months)

Shipped REST API controllers over an extensive EF Core domain covering lessons, exercises, progress tracking, wallets, and payments. Implemented authentication with ASP.NET Core Identity, Google OAuth 2.0, and JWT, and integrated VNPay payment gateway.

C#ASP.NET Core SQL Server VNPAY Docker Clean Architecture CQRS MediatR AutoMapper LINQ JWT Swagger

Backend Developer

LAK Solutions

Developed and maintained backend services for LAK Solutions, focusing on C#/.NET Core and RESTful APIs. Implemented microservices architecture and integrated various data sources.

C#.NET Core REST APIs Microservices SQL NoSQL Redis Docker CI CD

Education

Degrees, certifications, and relevant coursework

Ho Chi Minh City University of Science

Bachelor of Information Systems, Information Systems

2021 - 2025

Grade: Very Good

Bachelor of Information Systems degree with a Very Good classification. Awarded scholarships including Ninety Eight 2025, Lang Ta, and Chap Canh Uoc Mo.