Freelance Fullstack Engineers in San Francisco

Freelance Fullstack Engineers in San FranciscoFreelance Fullstack Engineers in San Francisco

Projects People

proSan Francisco, USA

AI Campaign Assets + Agents for DTC Growth

$50k+: Earned

19x: Hired

5.0: Rating

182: Followers

Top

Partner

+1

AI Campaign Assets + Agents for DTC Growth

Cover image for AI-Powered Real Estate Recruiting Site + Digital Twin

AI-Powered Real Estate Recruiting Site + Digital Twin

1

124

Cover image for Hawaiian Electrician Identity: Branding + AI Receptionist

Hawaiian Electrician Identity: Branding + AI Receptionist

1

45

Cover image for Elysian DAO DeFi App

Elysian DAO DeFi App

0

26

Cover image for Crypto Luminary Web App

Crypto Luminary Web App

0

85

Fullstack Engineer(7)

proSan Francisco, USA

Full-stack Engineer | Applied AI/ML

$25k+: Earned

2x: Hired

5.0: Rating

14: Followers

Full-stack Engineer | Applied AI/ML

Cover image for AutoNAV

0

27

Cover image for Logical Root

0

44

Cover image for AI/ML app to generate product descriptions

AI/ML app to generate product descriptions

0

24

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Fullstack Engineer(1)

Matt Kettelkamp

San Francisco, USA

Web Developer | 3D Developer

47: Followers

Top

Web Developer | 3D Developer

Cover image for ChapGen

3

47

Cover image for 3D Interactive Footer

3D Interactive Footer

0

7

Cover image for Opti - 3D ECG Visualization Education Tool

Opti - 3D ECG Visualization Education Tool

9

130

Cover image for 3D Event Promo

2

22

Fullstack Engineer(1)

proSan Francisco, USA

AI & ML Engineer

$1k+: Earned

7x: Hired

20: Followers

AI & ML Engineer

Cover image for AI Groceries
An AI-powered online grocery

AI Groceries An AI-powered online grocery delivery platform built with Next.js 15, React 19, Supabase, Claude API, and Stripe. Designed around "The Harvest Table" philosophy -- abundant, warm, and grounded in real food provenance.

0

138

Cover image for Markey
A multi-vendor marketplace connecting artisan

Markey A multi-vendor marketplace connecting artisan sellers with collectors. Beautiful dark-first design with Stripe Connect split payments, AI-powered product descriptions, and full admin controls. Deploy in minutes, no local setup required.

0

87

Cover image for Invoice & Inventory Management
A comprehensive

Invoice & Inventory Management A comprehensive invoice and inventory management system with Claude AI integration. Deploy in minutes, no local setup required. Features: Professional Invoicing - Create, send, and track invoices Inventory Tracking - Monitor stock levels with automatic alerts Customer Management - Centralized customer database Analytics Dashboard - Revenue charts and profit/loss reports Stock Alerts - Low stock and out-of-stock notifications Claude AI Assistant - AI-powered business insights Demo Mode - Works instantly without any configuration

1

1

125

Cover image for ClaudeHub Dashboard
A modern, full-featured dashboard

ClaudeHub Dashboard A modern, full-featured dashboard with Claude AI integration. Deploy in minutes, no local setup required. Features: Claude AI Integration - Get intelligent insights and analysis Interactive Charts - Bar, line, pie, and area charts Real-time Dashboard - Stats, metrics, and KPIs at a glance User Authentication - Secure login with Supabase Auth Demo Mode - Works instantly without any configuration Responsive Design - Desktop, tablet, and mobile ready

0

93

Fullstack Engineer(5)

proSan Francisco, USA

AI-First Full Stack Developer | SaaS, PropTech & Health Tech

13: Followers

AI-First Full Stack Developer | SaaS, PropTech & Health Tech

Cover image for Instashowing - Showing Bookings & Offers Platform | React + ROR

Instashowing - Showing Bookings & Offers Platform | React + ROR

0

11

Cover image for HomeBldr - Investment & Renovation Solutions

HomeBldr - Investment & Renovation Solutions

0

2

Cover image for Sparrowell - A HIPAA-Compliant WebApp

Sparrowell - A HIPAA-Compliant WebApp

0

2

Cover image for 💡 Did you know that most startups fail not because of bad i...

💡 Did you know that most startups fail not because of bad ideas, but because of weak tech execution? In the past few years, I’ve helped founders in HealthTech, Real Estate Tech, and EdTech turn their early concepts into stable, scalable products that users love. Here’s what I’ve learned: 1️⃣ Simplicity beats complexity, especially in MVPs. 2️⃣ UX matters as much as backend logic. 3️⃣ Clear communication between devs and non-tech founders is game-changing. Curious to know, what’s the biggest challenge you’ve faced while turning an idea into a working product? #StartupTips #ProductDevelopment #FullStackDev #HealthTech #RealEstateTech #EdTech

19

180

Fullstack Engineer(5)

Cameron Ysidron

San Francisco, USA

Full Stack Engineer & 3D Animator

Full Stack Engineer & 3D Animator

Cover image for AI Data Analyst

AI Data Analyst

0

2

Cover image for Next.JS SEO Automation App

Next.JS SEO Automation App

0

11

Cover image for Full-Stack Typescript Web App

Full-Stack Typescript Web App

0

15

Cover image for Interactive 3D Animation Showcase

Interactive 3D Animation Showcase

0

16

Fullstack Engineer(3)

Farrokh Rostami Kia

Walnut Creek, USA

full-stack developer & UI/UX designer

full-stack developer & UI/UX designer

Cover image for MILOUPAW, PROFESSIONAL AND RELIABLE PET CARE SERVICES

MILOUPAW, PROFESSIONAL AND RELIABLE PET CARE SERVICES

0

16

Cover image for CONFIDENTIAL PROJECT

CONFIDENTIAL PROJECT

0

11

Cover image for IRAN NATIONAL ASSEMBLY OF JURISTS

IRAN NATIONAL ASSEMBLY OF JURISTS

0

19

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Fullstack Engineer(3)

Keaton Williams

San Francisco, USA

AI Automation Consultant & Strategist

1x: Hired

17: Followers

Expert

AI Automation Consultant & Strategist

Cover image for Numun.io (http://Numun.io) is an autonomous agent and workfl...

Numun.io (http://Numun.io) is an autonomous agent and workflow execution platform designed to turn intent into action—reliably, securely, and at scale. Numun enables users and teams to design, deploy, and run AI-powered agents and workflows that browse the web, call tools, orchestrate systems, and complete real tasks end to end. At its core is a contract-based execution model that emphasizes determinism, observability, and accountability—bringing production-grade discipline to AI agents. Numun is built for developers, operators, and founders who need agents that actually work in the real world—not demos that break under pressure. This project includes full-stack platform development, execution infrastructure, agent runtime design, workflow orchestration, and system-level reliability engineering.

23

418

Cover image for AI Builder + Agent Studio is a system for designing, testing...

AI Builder + Agent Studio is a system for designing, testing, and deploying AI agents and autonomous workflows as structured, production-ready graphs, not fragile prompts. At the core is Agent Studio, where workflows are defined as explicit graphs made up of agents, tools, conditionals, loops, routers, and outputs. The AI Builder sits on top of this system and generates complete workflows automatically. Instead of writing code or wiring nodes manually, users describe the goal—and the AI Builder constructs a valid workflow graph. Every workflow can be tested using a test harness, ensuring agents execute correctly before deployment. This project demonstrates how AI agents can be treated like real software systems—versioned, validated, and orchestrated—instead of one-off prompt chains.

26

499

Cover image for Using AI Builder in Agent Studio, I designed and generated a...

Using AI Builder in Agent Studio, I designed and generated a multi-step workflow that orchestrates agents, tools, conditionals, loops, and parallel execution in a single graph. The workflow interprets user input, plans tasks, executes actions via integrated tools, and produces structured outputs, fully autonomously. It’s a powerful example of moving from AI-generated plan to real-world actionable execution.

14

312

Cover image for In Numun.io (http://Numun.io), workflows are first designed ...

In Numun.io (http://Numun.io), workflows are first designed and validated in Agent Studio as structured, multi-step graphs—made up of agents, tools, conditionals, loops, and outputs. Once a workflow is complete, it doesn’t live in isolation. By toggling the workflow on in Agent+ Mode, users can execute that same workflow directly from the AI chat interface. Instead of receiving a simple text response, the AI runs the full workflow behind the scenes and returns structured run results, including tool outputs, decisions taken, and final outcomes. The result is an AI experience that goes beyond conversation, turning chat into a live interface for executing and inspecting real autonomous workflows. In this example, Python code is generated and executed via Fly.io (http://Fly.io), returning a structured summary of results.

20

421

Fullstack Engineer(1)