Find the Best React.js Jobs in Buffalo, NY
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Check out a sample of the 21 React.js jobs posted on Upwork
Full-Stack Developer Needed: .NET & JavaScript Expertise
Hourly ‐ Posted 1 month agoHours needed
Duration
Experience level
**Job Opportunity: Full-Stack Developer** We are on the lookout for a talented full-stack developer who specializes in ASP.NET Core an…
3D Deck Designer Tool
Hourly ‐ Posted 29 days agoHours needed
Duration
Experience level
Hello, We are working on a project for our client. The build decks and want to build a 3D Deck Designer web app for homeowners to use…
Full Stack SaaS, Agents, RAG & Scalable Systems
Hourly ‐ Posted 13 days agoHours needed
Duration
Experience level
We are looking for a highly skilled AI Product Engineer who can design, develop, and scale modern AI-powered SaaS applications and inte…
AI Chatbot UI Redesign + API Integration (React / Next.js)
Fixed-price ‐ Posted 1 month agoFixed-price
Experience level
ABOUT THE PROJECT We have an existing AI chatbot and need a complete UI redesign plus OpenAI / custom LLM API integration. The new inte…
Senior Full Stack Developer (Azure, Node.js, React) Needed for Lo…
Hourly ‐ Posted 10 days agoHours needed
Duration
Experience level
We are looking for a senior full stack developer with strong hands-on experience in Microsoft Azure environments to help build and main…
Part-Time AI Full Stack Engineer in Toronto
Fixed-price ‐ Posted 6 days agoFixed-price
Experience level
**Part-Time AI Full Stack Engineer: Toronto (On-site / Hybrid)** **$1,500-$2,000/month depending on experience · 20-25 hrs/week · Contr…
Full-Stack Engineer for Retail Multi-Store SMS Inbox Web Applicat…
Fixed-price ‐ Posted 9 months agoFixed-price
Experience level
Summary: Build a simple collaborative customer-messaging platform for a multi-store retail organization. Teams at each store share a ph…
React/Next.js and .NET Developer/Architect
Hourly ‐ Posted 2 months agoHours needed
Duration
Experience level
We are a fast-growing product company looking for a senior, hands-on Full-Stack Architect who can both design systems and actively cont…
Contract Full-Stack Developer (Django / React) – Rapid Codebase R…
Hourly ‐ Posted 14 days agoHours needed
Duration
Experience level
Project Overview We have an existing web application codebase (Python/Django backend, React frontend) that needs considerable revision…
Title: Build an AI SDR Agent for Automated Outbound Sales Prospec…
Hourly ‐ Posted 26 days agoHours needed
Duration
Experience level
**Job Opportunity: AI Agent Developer for Sales Enhancement** We are looking for a talented freelancer to create an AI agent aimed at…
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