Zero risk · Pay after delivery

Build First, Pay Later.

Custom software that actually ships. Web apps, mobile apps, AI tools, automation pipelines — handcrafted by a single engineer who gives a damn about your product.

Satisfied = Paid. Not satisfied = Free.
🔒 No upfront payment
📦 Full source code
🛡️ 90-day warranty
⚡ 2-week MVP delivery
Start Your Project → See What I Built
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Why This Works

Why I Can Promise "Deliver First, Pay Later"

Most freelancers take deposits and ghost you. I flip the script — if it doesn't ship, you don't pay. Period.

🔄

Daily Visibility

Staging environment from day one. You see progress daily, not a surprise weeks later.

💎

Fixed Price

Scope locked before work starts. No "this feature costs extra" games.

💯

Pay When Happy

Product ships, you approve, then payment. Not satisfied? We don't charge you.

🔧

90-Day Fix

Any bug within 90 days of delivery gets fixed free. My confidence in my code.

What I Build

Full Stack. One Person. Zero Bullshit.

No outsourcing chains. No template farms. Every line of code is mine — which means faster, cheaper, and higher quality.

🌐

Web Applications

Custom dashboards, SaaS platforms, internal tools, e-commerce backends. Architected from scratch.

ReactNext.jsFastAPIPostgreSQL
📱

Mobile Apps

Native-grade Flutter for iOS + Android. Offline-first, real-time sync, push notifications.

FlutterDartFirebaseWebSocket
🤖

AI Integration

LLM pipelines, RAG knowledge bases, intelligent chatbots, voice-to-text workflows.

LLM APIsWhisperVector DBLangChain
⚡

Automation & APIs

Cron jobs, data pipelines, multi-platform integrations, web scrapers. Machines do the work.

PythonREST APIGitHub Actionsngrok
🎬

Video Production Tools

Automated editing pipelines, AI narration, millisecond subtitle sync. End-to-end video automation.

ffmpegTTS/VTTKen BurnsPipeline
🔮

Something Wild?

Your idea doesn't fit a category? Perfect. The best projects break rules. If it runs on a computer, I build it.

CustomR&DPrototypeArchitecture

Real Work

Live Products, Not Mockups

Everything below is deployed and running. Screenshots from actual products I've built.

关务通 Tariff Engine
Production

🏛️ 关务通 · Tariff Engine

35,000+ HTS codes · USITC API integration · Policy calendar · Team sync · 30+ endpoints

35K+
Codes
30+
APIs
24/7
Running
健身助理 App
Flutter App

💪 健身助理 · Fitness Tracker

Flutter native app · Body metrics tracking · Training plans · Progress charts · Gamified streak system

7
Modules
Native
Flutter
iOS+Android
Platform
小禾苗 Growth Record
Flutter App

🌱 小禾苗 · Growth Record

Family growth tracking app · 7 members · Diary module · Reward system · Voice messages · Claymorphism UI

7
Family
38MB
APK Size
v3.3
Version
Silk & Stone Travel
Website

🌍 Silk & Stone · Travel Brand

Dark luxury travel brand site · China inbound tours · Visa concierge · Ground services · Oriental aesthetic

7
Sections
Brand
Level
Responsive
Design
And more... VideoFactory pipeline engine, distributed agent mesh, LE quote system, tariff analysis tools, BI reports, and 20+ other projects. Too many to list here — ask me about anything specific.

How It Works

5 Steps. Zero Cost Until Delivery.

Average 2 weeks for an MVP. You only need to describe what you want.

01

You Describe

30-min call or doc. Define the problem. I ask the sharp questions.

02

I Spec

Scope document, tech choices, fixed price. No ambiguity allowed.

03

$0 Start

No deposit required. Sign contract, start building. Day 1 staging access.

04

Daily Updates

Progress every day. See it evolve live. Not a surprise delivery weeks later.

05

Ship & Pay

Production launch, your approval, then payment. Source code yours. 90-day warranty.

Pricing

Transparent. Fixed. Fair.

Scope locked, price locked. No hidden charges ever.

🚀

MVP Sprint

$1.5K–5K
1–2 weeks
  • Single-page web or landing page
  • Basic backend + database
  • One round of revisions
  • Deploy to production
  • Source code delivered
Start Sprint →
⭐ Popular
🏗️

Full Product

$5K–20K
3–8 weeks
  • Multi-page web or mobile app
  • User auth + real-time features
  • API integrations
  • Admin dashboard included
  • 90-day bug fix warranty
  • Source code + documentation
Build Product →
🏢

Enterprise

$20K+
Custom timeline
  • Distributed architecture
  • Multi-tenant SaaS
  • CI/CD + auto-scaling
  • Security audit ready
  • Ongoing maintenance
  • Dedicated channel
Discuss Enterprise →

Tech Stack

Weapons of Choice

Tools I reach for when precision matters more than hype.

Flutter / DartPython 3.13FastAPIReact / Next.js PostgreSQLffmpegedge-TTSngrok GitHub PagesGitHub ActionsLLM APIsWhisper WebSocketDockerFirebaseSQLite Flutter / DartPython 3.13FastAPIReact / Next.js PostgreSQLffmpegedge-TTSngrok

Start Building

Got an Idea?

The weirder, the better. Deliver first, pay later — zero risk on your end.