Who is Samuel Bui?

Full-stack developer building reliable web applications that solve real business problems.

I build web applications that solve real business problems. My focus is on creating reliable, scalable systems that teams can depend on.

From AI-powered document analysis platforms to construction workforce marketplaces, I've helped businesses across different industries streamline their operations.

I specialize in multi-tenant platforms, AI integration, and modern authentication systems using React, TypeScript, Hono.js, and Cloudflare Workers.

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Featured Projects

Real-world applications built for clients across different industries.

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Rendyr AI

AI-powered legal document platform with mediation prep, deposition indexing, arbitration briefs, and medical chronology. Multi-tenant SaaS with WebAuthn passkey auth.

Conxera

A modern platform built to streamline operations and connect stakeholders. Built with a focus on performance, clean architecture, and seamless user experience.

Mario Garcia Portfolio

Premium portfolio for award-winning designer Mario Garcia. Showcases 250+ projects, $1B+ fundraises, and 7 exits including Nymbus ($329M Series C).

SNDQ

Property management platform for streamlining property management tasks across multiple tenants and locations.

Your Project

Have a product idea or need a full-stack engineer? I'm available for new projects — from MVPs to scaling existing platforms.

Open Source

Contributing to and building open source tools for the developer community. Follow along on GitHub.

ManoBuild

Construction workforce marketplace — TaskRabbit for construction. Features project management, job matching, timesheet approval, payments, and real-time messaging.

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Recent Work

Updates from active projects, shipped features, and technical milestones.

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Samuel Bui
About Samuel Bui

Building products that scale and systems that last.

My name is Samuel Bui. I build web applications that solve real business problems — from AI-powered legal document platforms to construction workforce marketplaces.

I specialize in multi-tenant SaaS platforms, AI workflow integration, and modern authentication systems. My preferred stack: React, TypeScript, Hono.js, and Cloudflare Workers.

I'm available for freelance projects and consulting. If you're building something and need a reliable full-stack engineer, let's talk.

03

All Projects

A selection of projects I've shipped for clients and personal use.

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01
Rendyr AILegal Tech

AI-powered legal document platform with mediation prep, deposition indexing, arbitration briefs, medical chronology. Multi-tenant SaaS with WebAuthn auth.

ReactHono.jsAI Integrated WorkflowPostgreSQLWebAuthnMulti-tenant
2024
02
ManoBuildMarketplace

Construction workforce marketplace (TaskRabbit for construction). Features project management, job matching, timesheet approval, payments, real-time messaging.

ReactTypeScriptXanoi18nReal-time Messaging
2024
03

Premium portfolio for award-winning designer Mario Garcia. Showcases 250+ projects, $1B+ fundraises, 7 exits including Nymbus ($329M Series C).

ReactTypeScriptHono.jsCloudflare Workers
2024
04
SNDQSaaS

Property management platform for streamlining property management tasks.

Property ManagementSaaSCloud Platform
2024
04

What I Build

Services and technical expertise I bring to every project.

Get in touch

Services

Full-Stack Apps

End-to-end web apps with React/TypeScript frontend and Hono.js or NestJS backend. From MVP to production.

AI Integration

Integrate OpenAI, Anthropic Claude, and Google Gemini into product workflows. Document analysis, chat, and AI pipelines.

Multi-tenant SaaS

Scalable SaaS platforms with org isolation, RBAC, and multi-tenant data models built on PostgreSQL.

Auth Systems

WebAuthn passkeys, Better Auth, OAuth flows, and JWT-based API security. Modern auth from scratch.

API Design

RESTful and RPC-style APIs with Hono.js, OpenAPI spec, Drizzle ORM, and Cloudflare D1 or PostgreSQL.

Edge Deployment

Deploy to Cloudflare Workers and Pages for sub-50ms global response times. Wrangler, KV, R2, D1.

and more

Preferred Stack

React + TypeScript

Modern frontend with TanStack Router, TanStack Query, Tailwind CSS v4, and shadcn/ui components.

Hono.js / NestJS / Xano

Backend APIs on Cloudflare Workers (Hono), Node.js (NestJS), or no-code with Xano for rapid prototyping.

20+
Projects Shipped
across industries
4
Featured Clients
live and growing
29
Blog Posts
on web development
5+
Years Experience
full-stack development
Work with me

Let's build something together.

I'm available for freelance projects and consulting engagements. Whether you need an MVP or help scaling an existing platform, let's talk.

Available for hire

Samuel Bui

  • Full-Stack Web Development
  • AI Integration & Workflows
  • Multi-tenant SaaS Platforms
  • API Design & Backend Architecture
  • Cloudflare Workers & Edge Deployment
  • Modern Auth (WebAuthn, Better Auth)
Book a discovery call View Upwork profile
Remote-friendly·Fast turnaround·Clean code

Not ready to start a project? Connect on LinkedIn or check out my GitHub.

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Frequently asked questions

What type of projects do you take on?

I specialize in full-stack web applications — particularly multi-tenant SaaS platforms, AI-integrated workflows, and marketplace products. I've worked across legal tech, construction, design portfolios, and property management. If you have a complex product problem, I'm interested.

What's your preferred tech stack?

Frontend: React with TypeScript, TanStack Router, TanStack Query, and Tailwind CSS. Backend: Hono.js on Cloudflare Workers, or NestJS/Xano for more complex requirements. Databases: PostgreSQL, Supabase, Cloudflare D1, and SQLite.

Do you work with non-technical founders?

Yes. I've helped non-technical founders go from an idea to a working product. I can advise on architecture, help you avoid costly early decisions, and build iteratively based on real user feedback.

Can you integrate AI into an existing product?

Absolutely. I've built document analysis pipelines using OpenAI and Anthropic Claude, implemented vector search, and connected AI workflows to real-time product features. I focus on practical AI integrations that solve real problems, not demos.

What's your availability?

I'm currently available for new projects. Book a discovery call via cal.com/sam-t8csnr to discuss your timeline and requirements.

How do we get started?

Book a 30-minute discovery call. We'll discuss your project, timeline, and whether we're a good fit. From there I'll send a proposal with scope and pricing. You can also reach out directly: duong.buinhat1809@gmail.com