You will get a functional web prototype deployed to Cloudflare, ready for real users

Yin Yin C.Status: Offline
Yin Yin C.

Let a pro handle the details

Buy Web Application Programming services from Yin Yin, priced and ready to go.
Yin Yin C.Status: Offline
Yin Yin C.

Let a pro handle the details

Buy Web Application Programming services from Yin Yin, priced and ready to go.

Project details

I'm a senior product engineer and SaaS founder with 19 years of experience building and shipping web products from 0-1. I build functional, deployable prototypes fast using an AI-assisted workflow with Claude Code and Cursor, deployed to Cloudflare Workers for speed, scalability, and low cost.

I've built and scaled my own SaaS products, worked with enterprise clients, and know how to scope a prototype tightly so it ships on time. You get a real, working product, not a mockup, that you can put in front of users immediately.
Programming Languages
JavaScript, Python, TypeScript
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Security

What's included $2,500

These options are included with the project scope.

$2,500
  • Delivery Time 7 days
  • Number of Revisions 1
  • Number of Pages 3
    • Responsive Design
    • Source Code
Optional add-ons You can add these on the next page.
Fast 4 Days Delivery
+$500
Additional Revision
+$250
Content Upload (+ 3 Days)
+$750
Yin Yin C.Status: Offline

About Yin Yin

Yin Yin C.Status: Offline
Product Engineer & Technical Consultant
Los Angeles, United States - 12:14 pm local time
I'm Yin, a product engineer & technical consultant experienced in building full-stack web applications for growth-stage startups and enterprise clients..

I bring reliability, cross-functional expertise, and self-direction where you need it.

What I Do:

I get web products to market from 0-1. I strategize, design, build, and deploy SaaS applications and internal business tools from prototype to production-ready.

I modernize and optimize legacy software. I redesign, refactor, and add features to existing web products while optimizing for ease and cost of maintenance.

I'm a full-stack product engineer who has 18+ years experience with Ruby on Rails, JavaScript, React, PHP, Python, HTML/CSS, Tailwind, Sass CSS, PostgreSQL, MySQL, SQLite, REST API, JSON, GraphQL, Cloudflare, Edge Computing, Serverless Architecture, Solution Architecture, Product Discovery, Product Development, and Rapid Prototyping.

Steps for completing your project

After purchasing the project, send requirements so Yin Yin can start the project.

Delivery time starts when Yin Yin receives requirements from you.

Yin Yin works on your project following the steps below.

Revisions may occur after the delivery date.

Requirements reviewed and core workflow confirmed in writing

Architecture and stack decisions finalized

Review the work, release payment, and leave feedback to Yin Yin.