About
Long Vu (Nguyễn Long Vũ)
I build software to order from Ho Chi Minh City: web systems, automations and AI agents, on whatever stack the job needs. From 02/2025 to 06/2026 I worked at Pratek on distributor management for Uniben Foods and Vietcos, the eVS e-invoice platform and a Power BI portal behind Azure AD sign-in.
Since 03/2026 I have worked with Van Data Team, run by Tran Tien Van, and since 07/2026 with Repurgo, the GTM engineering studio of Tim N. For a furniture factory I was one of four engineers on the HR system and built the manufacturing and warehouse modules of its ERP. I also make explainer videos whose scenes are written in code.
Facts
- Based in
- Ho Chi Minh City · GMT+7 ·
- Work mode
- Full-time or contract, remote or hybrid in Ho Chi Minh City
- Languages
- Vietnamese (Native) · English (Working proficiency, technical reading and writing)
- Education
- Saigon University, Engineer's degree in Information Technology, 02/2021 - 02/2026
- Teams
- Pratek · Van Data Team (Tran Tien Van) · Repurgo (Tim N.)
How I work
- 01
Done means checkable
Before I start, each task gets a check I can run: a test, a number, or a screen the owner can look at.
- 02
Small slices
I change only what the slice needs. Bigger rewrites wait until a smaller change proves the idea.
- 03
A person approves what goes out
Emails, comments, posts and client messages wait for approval. In x-cli every write starts as a preview, and nothing is posted until the preview is executed by ID.
- 04
Evidence with the method
Speed claims come with how they were measured, and the before and after run on the same machine.
- 05
Report bad news plainly
Under the agreed evidence rules, 0 of 100 accounts qualified, so I reported 0 of 100 and paused the pilot.
- 06
Code before models
Rules decide first and a language model is asked only when they are unsure. If the model call fails, the work still moves and is flagged for a person.
- 07
Who did what
On team projects I name my part and my share of the commits.
Tools I use
- Frontend
- TypeScript · React 18/19 · Next.js 14-16 · Redux Toolkit, RTK Query · TanStack Query · React Hook Form, Zod · Tailwind CSS · Ant Design
- Backend
- .NET 8 (ASP.NET Core, EF Core) · Java (Spring Boot) · Node.js (Express) · Python, Django REST Framework · REST APIs · Socket.IO
- Data
- PostgreSQL · SQLite · Prisma
- Auth and security
- Azure AD (MSAL) · Clerk · JWT, RBAC
- Testing
- Vitest, Testing Library · Playwright · pytest · xUnit
- Delivery
- Git, GitHub Actions · Docker · Vercel · Firebase Hosting
- AI and automation
- n8n · Make · Zoho Flow · Google Apps Script · LLM APIs · Agent pipelines: roles, gates, checkpoints · Speech recognition for word timing · Remotion
- AI-assisted development
- AI coding assistants, with tests and review
Where each tool was used
Partners
Tran Tien Van
Founded Van Data Team, an AI and data engineering agency.
Upwork Top Rated Plus, 100% Job Success, 5.0 from 76 reviews, 156 jobs (21 Oct 2026, Upwork ↗)
Tim N.
Runs Repurgo, a GTM engineering studio for outbound, CRM and agent projects.
Upwork Top Rated Plus, 100% Job Success, 5.0 from 23 reviews, 54 jobs (21 Oct 2026, Upwork ↗)
These are the partners’ own Upwork numbers, read on the date shown. They are not my reviews.