ALI NGUYEN · DUYTRUYENTHONG

Hi, I’m Ali.

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Ali Nguyen builds
applied AI & digital
products.

I build applied AI prototypes

I turn customer problems into testable AI prototypes, data workflows, developer tools, and live commerce products. Explore the decisions and evidence behind each build. DUYTRUYENTHONG

Explore engineering work Download AI CV

4+ years in digital marketing2+ years in AI engineering and product building

Portrait of Ali Nguyen wearing a black suitALI NGUYEN / DUYTRUYENTHONG
GROWTH COMMERCE OSSTOSCHỢ KÊNHVIBECODE PRODUCT KITKKBOX CHURN BASELINEDUYTRUYENTHONG

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A PROJECT TO EXPLORECodex Vibecode Pro Max Kit

I turn business needs and messy data into useful digital products — connecting applied AI, engineering, and commerce workflows.

01 LIVE SERVICE WEBSITE · Growth Commerce OS01 LIVE PRODUCT WEBSITE · STOS01 LIVE MARKETPLACE WEBSITE · Chợ Kênh01 PUBLIC DEVELOPER TOOL · Vibecode Product Kit01 AUDITED ML BASELINE · KKBox baseline

Highlights

5

featured builds across commerce products, open-source tooling, and customer analytics.

PUBLIC BUILDS.
EVIDENCE IN VIEW.→

Growth Commerce OS

A live service website for the DUYTRUYENTHONG brand.

Visit site

Vibecode Product Kit

A public developer tool with an offline CLI and CI checks.

View source

KKBox baseline

An audited churn holdout on official data with a snapshot-date leakage check.

See project

STOS

A live sales page product for independent sellers and small businesses.

Visit product

Open process

Reproducible baselines, readable code, and explicit limits.

Read approach

Selected work

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Explore all five projects, or choose a perspective to change their order.

PUBLICPublic open-source tool

  Codex Vibecode Pro Max Kit

A repeatable way to build and verify product work.

Small product teams need traceable planning, QA and release records.

01Public v0.2.0 repository with passing CI
Case study
LIVELive service website

  DUYTRUYENTHONG Growth Commerce OS

A clearer route from commerce signals to growth.

Commerce teams need a clearer path from content and channels to leads.

DUYTRUYENTHONG service homepage
02Public service site and demo links
Case study
LIVELive product website

  STOS Sales Traffic Operating System

A personal sales page with a path to better leads.

Independent sellers and small businesses need a shareable place to present their work, products, and contact options.

STOS sales page homepage
03Live product site and public template pages
Case study
LIVELive marketplace website

  Chợ Kênh

A clearer way to discover and discuss TikTok channel deals.

A digital-products marketplace currently focused on TikTok channels, where buyers and sellers can compare listings and discuss ownership, risk, and deal terms.

Chợ Kênh TikTok channel marketplace homepage
04Live channel catalog and manual intermediary service page
Case study
PUBLICPublic source · official-data local holdout

  KKBox customer churn baseline

Churn predictions that respect the snapshot date.

Subscription churn decisions require customer-level features without future-data leakage.

05Public source, leakage tests, input hashes, and measured local holdout
Case study

Applied AI expertise

What I build, and how I check it.

My work spans early AI prototypes, customer data, developer tooling, and commerce products. Each example below names the part that is working today and the part that still needs evidence.

01 / 04

Source-grounded AI guide

Build a live guide from approved public sources and inspect its answers. A 16-request baseline returned 12 responses and four service errors; nine passed the original heuristic checks. These checks are not an accuracy benchmark.

Guide evaluation and limitations
02 / 04

Evaluation before prediction

Build customer features through a chosen snapshot date, test that later events stay out, and audit the real-data holdout. The KKBox baseline reached 0.217324 log loss on an official-data local split.

KKBox results
03 / 04

AI-assisted product delivery

Turn an idea into a reviewable build with an offline CLI, agent profiles, templates and CI checks. Vibecode Product Kit is public; adoption is not measured here.

Public source and CI
04 / 04

From signal to action

Import daily Upstash aggregates into private Supabase PostgreSQL with a restricted loader, verified TLS and replay checks. The first manual production job passed. Public examples remain synthetic; recommendation signals use a separate opt-in collection.

Analytics pipeline and checks

Shared with the community

A more thoughtful job search.

Free to use · MIT licensed

Vietnam Career Agent Kit

I share this free, open-source kit to help job seekers in Vietnam organize their search, prepare evidence-backed CV drafts, and review applications with their own AI agent.

Start with the free kit Explore the source Hướng dẫn tiếng Việt

Start with Git, Python 3.11+ and the local demo. Agent and model services may have separate costs.

Python · SQLite · Reusable agent skills

  1. 01

    Bring your evidence

    Import a text CV and job description into a private local workspace.

  2. 02

    Prepare with care

    Confirm your profile, match evidence to a role, and draft a tailored CV.

  3. 03

    Review, then apply

    Track progress and approve supported browser actions before sharing or submitting.

A preparation and supervised-application toolkit, not a job-placement service. Automated job-source connectors and unattended applications are not included; job offers are not guaranteed.

Conceptual relationship · no measured outcome shown

Where the work connects

From signal to decision.

  1. 01 Collect and understand customer signals
  2. 02 Build reliable features and workflows
  3. 03 Put useful decisions in reach

What I do / sales and marketing

From first impression to a useful conversation.

I connect brand, content, product pages, proof, and measurement so people can understand an offer and take the next step.

01 / AWARENESS
ToFU

Attract

Help the right people recognize the offer.

One distinct primary action, simple navigation, and a subtle sense of progress.

Von Restorff · Tesler · Zeigarnik
02 / CONSIDERATION
MoFU

Build confidence

Answer questions before asking for commitment.

Familiar layouts, digestible sections, and proof close to the claim it supports.

Jakob · Miller · Proximity
03 / DECISION
BoFU

Make action easy

Turn qualified interest into a useful conversation.

Large tap targets, prompt feedback, and a direct visual path to the next action.

Fitts · Doherty · Continuity

Interactive funnel / 5 stages

From a brand idea to a measurable outcome

Five connected layers, from positioning through reporting. Hover or select a stage to follow the work.

Select a stage to explore

Select a stage to see its purpose and a sample progression.

The flow and counts are illustrative, not measured customer results.

Interactive funnel / 6 stages

The B2B buying journey

Six stages show which kind of content helps a buyer move from first contact to lasting value.

Select a stage to explore

Select a stage to see its purpose and a sample progression.

The flow and counts are illustrative, not measured customer results.

Customers & collaborations

Built for real businesses.

Customer and collaboration names confirmed by Ali Nguyen. Individual testimonials are not quoted here.

About the work

Build with the evidence in view.

I bring 4+ years in digital marketing and 2+ years in AI engineering and product building. I founded and operate DUYTRUYENTHONG agency, combining client discovery with websites, local search, content, TikTok Shop operations, and analytics. Solution consulting and technical support experience shape how I scope, test, and explain each system.

01

Make data ownership explicit

Show sources, roles, and system boundaries.

02

Measure before claiming impact

Separate technical checks from business outcomes.

03

Protect customer information

Use public evidence without exposing customer records.

04

Build for reliability and speed

Make the next change testable and understandable.

Languages & data

  • Python
  • SQL
  • JavaScript
  • TypeScript
  • Pandas

Applications

  • React
  • Next.js
  • APIs
  • LLM and RAG prototypes

Sales & marketing

  • Sales funnels
  • Google Business Profile
  • TikTok Shop
  • Content
  • Lead workflows

Analytics & delivery

  • PostgreSQL
  • Power BI
  • DAX
  • GitHub Actions
  • Testing

CVs

Choose the version for your conversation.

PDF

Applied AI engineering

LLM applications, retrieval workflows, Python, and customer analytics prototypes.

Download PDF
PDF

Business and product

Digital marketing services, sales funnels, solution consulting, and commerce products.

Client needs, product scoping, and reviewable commerce builds.

Business & Product PDF

Client discovery, offer positioning, and solution consulting.

Business Development PDF
Prompt engineering artwork with a futuristic robot
DOCX

AI and prompt engineering

Prompt workflows, RAG concepts, enterprise troubleshooting, and AI-assisted delivery.

Download DOCX

Notes from the build

A few decisions behind the work.

01 / CUSTOMER DATA

Predict from what was known then.

The KKBox baseline aggregates events only through a selected snapshot date, with a synthetic check for future-data leakage.

Explore KKBox ↗
02 / PRODUCT DELIVERY

Make quality gates visible.

The public Vibecode kit records plans, evidence, and checks so a release can be reviewed.

View the kit ↗
03 / COMMERCE

Connect the system to the decision.

Growth Commerce OS presents service workflows around content, channels, landing pages, and leads.

Visit the service site ↗

Contact

Have an engineering role or product challenge in mind? Let's talk.

nquangd1510@gmail.com

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