Le Van Trung Tinh

Software engineer,
Java backend & TypeScript stacks.

I ship APIs and services with Java / Spring, Node.js, NestJS, and Next.js when the product needs a UI. PostgreSQL and clean boundaries are defaults, not extras.

Recently interned on production backends (Fastify, tRPC); personal work spans Spring, Nest, and ML-adjacent features where it fits.

View CVSee projects
About Me

Based in Da Nang. Prefer clear contracts between services and databases; happy to pick up whatever the team standardises on.

developer.ts

const developer = {

name: "Le Van Trung Tinh",

focus: "Backend & full-stack",

available: true,

};

GitHubLinkedIn
Scroll

Selected work

Projects

Click a row for context, stack, and links. 6 builds below.

01

Book Review Platform

2024
Full-StackBackend
JavaSpring BootSpring SecurityReactPostgreSQL
Details
02

MeetAI — AI Video Meeting SaaS

2025
Full-Stack
Next.jsNode.jsOpenAI APIDrizzle ORMInngest+1
Details
03

Devhelp — Mezon Developer Bot

2025
Backend
NestJSTypeScriptSQLiteMezon SDK
Details
04

Clinic Booking System

2024
Full-Stack
Node.jsExpress.jsReactPostgreSQLStream API
Details
05

MazaBank — Desktop Banking App

2024
Desktop
JavaJavaFXSQLite
Details
06

Medical Diagnosis Chatbot

2025
AI/MLBackend
PythonXGBoostAprioriPandasJava+1
Details

Stack

Tools I use

Pulled from real projects and work — not a keyword dump.

Core Languages

Primary Languages & Frameworks

Node.jsTypeScriptJavaScriptJavaSpring BootNestJSReactNext.jsFastifyExpress.jsREST APItRPC

Database & ORM

Data Storage & Management

PostgreSQLMongoDBRedisMySQLDrizzle ORMPrismaNeonPinecone

AI / ML

Machine Learning & AI Integration

OpenAI APIXGBoostAssociation RulesPandasFastAPIScikit-learn

DevOps & Tools

Development & Deployment

DockerGitLinuxBash ScriptingPostmanVercelInngestTailwind CSS

* Always eager to learn new technologies as the job requires

Experience

Roles & impact

Recent positions, newest first.

commit exp-001

Backend Developer Intern

Tomosia Vietnam
Mar 2025 — Oct 2025

6-month internship focused on building and maintaining production backend services, following Clean Architecture principles for maintainability and scalability.

+Built production backend services using Fastify + TypeScript with Clean Architecture
+Designed REST & tRPC APIs handling concurrent requests with optimized DB queries
+Containerized services with Docker and automated workflows via Bash scripting
+Contributed Next.js + shadcn/ui frontend components for internal tooling
TypeScriptFastifytRPCNext.jsDockerBash
commit exp-002

Power BI Tutor

Hoc Cung Chuyen Gia
Jan 2025 — May 2025

1-on-1 tutoring sessions on data visualization, DAX formulas, and interactive dashboard design using Power BI.

+Delivered personalized 1-on-1 tutoring sessions on data visualization
+Helped students build interactive dashboards and reports
+Strengthened communication and mentoring skills through structured instruction
Power BIData VisualizationDAXData Modeling