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

32x: Hired

5.0: Rating

149: 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

89

Cover image for Hawaiian Electrician Identity: Branding + AI Receptionist

Hawaiian Electrician Identity: Branding + AI Receptionist

1

41

Cover image for Abstract AI Chat: Learn Blockchain with Interactive AI & Docs

Abstract AI Chat: Learn Blockchain with Interactive AI & Docs

2

56

Cover image for Elysian DAO DeFi App

Elysian DAO DeFi App

0

26

Fullstack Engineer(7)

PROSan Francisco, USA

Full-stack Engineer | Applied AI/ML

$25k+: Earned

3x: Hired

5.0: Rating

11: Followers

Full-stack Engineer | Applied AI/ML

Cover image for AutoNAV

0

26

Cover image for Logical Root

0

43

Cover image for AI/ML app to generate product descriptions

AI/ML app to generate product descriptions

0

23

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Fullstack Engineer(1)

Matt Kettelkamp

San Francisco, USA

Web Developer | 3D Developer

35: Followers

Top

Web Developer | 3D Developer

Cover image for ChapGen

3

39

Cover image for 3D Interactive Footer

3D Interactive Footer

0

1

Cover image for Opti - 3D ECG Visualization Education Tool

Opti - 3D ECG Visualization Education Tool

4

48

Cover image for 3D Event Promo

1

19

Fullstack Engineer(1)

PROSan Francisco, USA

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

10: 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

10

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

0

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

159

Fullstack Engineer(4)

Keaton Williams

San Francisco, USA

I turn complex ideas into real, scalable software.

10: Followers

Expert

I turn complex ideas into real, scalable software.

Cover image for Keat.info (http://Keat.info) is a custom‑built personal port...

Keat.info (http://Keat.info) is a custom‑built personal portfolio website created end‑to‑end to showcase professional experience, skills, and work history. The site was designed with clarity, performance, and user focus in mind—making it easy for visitors to understand career background, technical strengths, and contact information at a glance. This build demonstrates how a polished, professional personal site can serve as a clear signal of capability and credibility—turning a resume into an accessible, scalable web presence that reflects technical and strategic thinking.

2

2

221

Cover image for Numun Labs is a physics and technology laboratory focused on...

Numun Labs is a physics and technology laboratory focused on translating first-principles research into measurable, testable, and deployable systems. The lab develops foundational models, research software, and experimental frameworks that turn abstract physical laws into operational tools. Work spans mathematical modeling, simulation engines, verification-grade analytics, and software systems designed to validate theory against real-world data. Numun Labs operates at the boundary between discovery and implementation—building systems that don’t just hypothesize, but measure, predict, and close loops between theory and reality. Projects emphasize rigor, falsifiability, and reproducibility, with an engineering mindset toward long-term applicability.

1

191

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

354

Cover image for Numun.io AI Platform Overview

Numun.io AI Platform Overview

0

7

Fullstack Engineer(3)

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

14

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

17

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Fullstack Engineer(3)

Creative Software Engineer

6: Followers

Creative Software Engineer

Cover image for fullcircle ™

0

2

Cover image for Prevail Legal

0

7

Cover image for Eunoia - mymind.com clone - Nextjs

Eunoia - mymind.com clone - Nextjs

1

19

Cover image for Sonar - A clone of SoundCloud.

Sonar - A clone of SoundCloud.

0

19

Fullstack Engineer(2)