Hire the Best React.js Developers
in Canada
Brampton, Canada
I help businesses and founders build, fix, and launch websites, web apps, and mobile apps fast, cleanly, and without leaving new problems behind. Whether you need a WordPress site fixed today, a Shopify or WooCommerce store built, a Squarespace or Wix redesign, a React/Node web app, or an iOS app debugged and shipped I can step in, understand the goal quickly, and deliver. ๐ช๐ฒ๐ฏ๐๐ถ๐๐ฒ๐ & ๐๐ ๐ฆ โ WordPress, WooCommerce, Shopify, Squarespace, Wix, Carrd โ Elementor, Divi, ACF, custom themes & plugins, PHP โ Payment integration (Stripe, PayPal, Razorpay/UPI) โ Membership & subscription sites โ Speed optimization, security hardening, malware cleanup โ Site migration, redesign, and all common WordPress error fixes โ SEO-friendly structure and mobile responsive builds ๐๐๐น๐น-๐ฆ๐๐ฎ๐ฐ๐ธ & ๐ช๐ฒ๐ฏ ๐๐ฝ๐ฝ๐ โ React, Node.js, Express, MongoDB, REST APIs โ Dashboards, admin panels, SaaS MVPs โ Authentication, user management, webhooks โ Full product builds from idea to deployment ๐ถ๐ข๐ฆ & ๐ ๐ผ๐ฏ๐ถ๐น๐ฒ โ Swift, SwiftUI, UIKit, Objective-C โ Local notifications, Firebase, push notifications โ App Store release, bug fixes, crash & performance fixes โ Figma to SwiftUI conversion, feature development โ Production experience on apps used by millions, including enterprise iOS work for Albertsons/Safeway ๐๐ผ๐๐๐ถ๐ป๐ด & ๐ฆ๐ฒ๐ฟ๐๐ฒ๐ฟ โ cPanel, DigitalOcean, AWS, Linode, Nginx, Apache โ SSL, DNS, domain setup, Docker, Linux VPS ๐ช๐ต๐ ๐ฐ๐น๐ถ๐ฒ๐ป๐๐ ๐ต๐ถ๐ฟ๐ฒ ๐บ๐ฒ 1. I move fast without creating technical debt 2. I handle both front-end and back-end, so you don't need to manage multiple developers 3. I can work from vague requirements and turn them into a working product 4. I communicate clearly and keep things simple 5. I think like a product engineer, not just a coder I'm based in Canada, available 40+ hours/week, and overlap fully with North American time zones. Send me your site, app idea, Figma file, or existing codebase, and I'll tell you exactly how I'd approach it.
- React
- JavaScript
- Node.js
- iOS Development
- SwiftUI
- MongoDB
- API Development
- API Integration
- AI Implementation
- Full-Stack Development
- Web Application
- REST API
- WordPress
- Shopify
- WooCommerce
- Squarespace
- Wix
- SEO Audit
- iOS
- UIKit
Montreal, Canada
Youโve got an idea โ I help you turn it into a real product thatโs fast, scalable, and user-focused. Whether itโs a SaaS platform, a cross-platform mobile app, or an AI-powered solution, I build products that get to market quickly, perform flawlessly, and delight users from day one. I specialize in full-stack web and mobile app development using: React, React Native, Next.js, Node.js (Express / NestJS), TypeScript, TailwindCSS, Firebase, MongoDB, PostgreSQL, AWS, Vercel, Docker, Supabase, MoEngage, OpenAI API, LangChain, and more. My approach is simple โ understand your product vision, move fast, and build something that lasts. I handle everything from frontend UX to backend APIs, authentication, payment integration, and cloud deployment โ so you can focus on growth while I handle the tech. What I Can Do for You Build fast, responsive web apps and cross-platform mobile apps using React & React Native. Architect and integrate secure backend systems with Node.js and TypeScript. Set up authentication, user management, and payment systems (Stripe, Firebase, Cognito). Integrate AI/LLM features using OpenAI API or LangChain. Enhance user engagement and retention with MoEngage and in-app analytics. Deploy and scale your apps using AWS, Vercel, Firebase, or Supabase. Startup Experience At Dastgyr, a fast-growing B2B marketplace startup, I worked on three key products โ seller, customer, and driver apps โ built with the MERN stack and React Native. Automated the seller onboarding process, improving efficiency and reducing manual steps. Redesigned the cart-to-checkout flow, boosting usability and conversions. Integrated Google Maps API for real-time logistics and MoEngage for behavioral tracking. I also built a Blood Donation Platform in React Native and Firebase, connecting donors and recipients through real-time location tracking โ a project that brought both impact and innovation together. If youโre a startup founder or product lead looking for a developer who codes with purpose, understands product velocity, and delivers high-quality results โ letโs bring your idea to life and get it into usersโ hands fast.
- React Native
- React
- JavaScript
- Node.js
- MongoDB
- GraphQL
- SQL
- Next.js
- Tailwind CSS
- Supabase
- PostgreSQL
- TypeScript
- Amazon Web Services
- Full-Stack Development
- SaaS Development
Calgary, Canada
Iโm a Senior Software Engineer and Team Lead with 6+ years of experience building scalable, cloud-based web, mobile, AI agents, and AI-powered applications. I specialize in Node.js, TypeScript, React/Next.js, React Native, and AWS architectures, with proven expertise in designing microservices, cloud solutions, and AI/LLM integrations. I help startups and enterprises accelerate product development, optimize cloud costs, and implement intelligent automation systems. My experience spans: โข Full-stack web & mobile applications with modern frameworks โข AI agents, workflows, LLM integrations, and vector-based search systems โข Scalable microservices, APIs, and DevOps automation โข Cloud architecture, migration, and performance optimization I deliver clean, maintainable code, take ownership of projects end-to-end, and ensure your software scales efficiently. Letโs build something impactful together.
- React Native
- React
- Node.js
- Hugging Face
- AI Agent Development
- Python
- TypeScript
- Amazon Web Services
- Cloud Computing
- DevOps
- Microservice
- Docker
- NestJS
- Django
- REST API
Kitchener, Canada
I help startups, SaaS founders, and growing businesses turn product ideas into scalable, production-ready digital platforms. Over the last 10+ years, Iโve worked across full-stack development, product architecture, SaaS systems, AI-powered platforms, CRMs, dashboards, and custom web applications. My focus is not just writing code; itโs building reliable products that solve real business problems and can grow with your users. Whether you are building an MVP, improving an existing platform, automating operations, or scaling a SaaS product, I can help you plan, design, build, and launch with the right technical foundation. What I Can Help You Build: โข SaaS platforms โข AI-powered applications and automation systems โข Custom CRMs and admin dashboards โข React / Next.js frontend applications โข Node.js / NestJS backend systems โข API integrations and third-party tools โข Stripe/payment gateway integrations โข Role-based workflow systems โข UI/UX planning and product architecture โข High-performance web applications Tech Stack: React, Next.js, Node.js, NestJS, TypeScript, PostgreSQL, MongoDB, Python, Generative AI, GraphQL, AWS, Firebase, Tailwind CSS Why Clients Work With Me: Clients usually come to me when they need more than just a developer. They need someone who can understand the business goal, think through the product flow, make smart technical decisions, and execute with clarity. I bring: โ Clear communication โ Product-first thinking โ Clean and scalable architecture โ Fast but structured execution โ Strong ownership from idea to launch โ Long-term technical partnership mindset If you are looking for a reliable full-stack development partner who understands both technology and business outcomes, letโs connect.
- React
- JavaScript
- TypeScript
- Node.js
- Laravel
- Next.js
- WordPress
- AI Development
- Back-End Development
- Front-End Development
- SaaS
- Full-Stack Development
- CMS Development
- AI Bot
- ExpressJS
- Python
- API Integration
- Web Development
- MongoDB
- AI Chatbot
Thorold, Canada
I help founders and businesses build ๐๐๐๐ ๐ฉ๐ฅ๐๐ญ๐๐จ๐ซ๐ฆ๐ฌ, ๐ก๐๐๐๐ฅ๐๐ฌ๐ฌ ๐๐๐ ๐ฌ๐ฒ๐ฌ๐ญ๐๐ฆ๐ฌ, ๐๐ง๐ ๐๐-๐ฉ๐จ๐ฐ๐๐ซ๐๐ ๐ฐ๐๐/๐ฆ๐จ๐๐ข๐ฅ๐ ๐๐ฉ๐ฉ๐ฌ, from frontend architecture to backend systems and integrations. ๐ซ ๐ ๐ฑ๐ผ๐ปโ๐ ๐๐ฒ๐น๐น ๐ต๐ผ๐๐ฟ๐. ๐ ๐ฏ๐๐ถ๐น๐ฑ ๐ฝ๐ฟ๐ผ๐ฑ๐๐ฐ๐๐ ๐๐ต๐ฎ๐ ๐๐ฐ๐ฎ๐น๐ฒ. ๐ค My promise: If expectations aren't met, I take full responsibility and make it right. Backed by 9,700+ hours and a Top Rated Plus track record on Upwork. ๐๐ซ๐จ๐ฃ๐๐๐ญ๐ฌ ๐โ๐ฏ๐ ๐ฐ๐จ๐ซ๐ค๐๐ ๐จ๐ง ๐ข๐ง๐๐ฅ๐ฎ๐๐: โ SaaS dashboards and product platforms โ AI agents & LLM-powered features (chatbots, RAG, workflow automation) โ Headless CMS-driven enterprise websites (Storyblok, Sanity) โ Healthcare & MedTech applications โ E-commerce and marketplace systems โ Subscription billing & Stripe integrations โ Fitness and mobile/web applications Across these, I've shipped 30+ production applications serving real users at scale handling complex user flows, large-scale content, and performance-critical workloads. ๐๐๐๐ฉ ๐๐ค๐ช ๐พ๐๐ฃ ๐๐ญ๐ฅ๐๐๐ฉ: โ Scalable frontend architecture โ High-performance React / Next.js applications โ AI integration (LLMs, AI agents, RAG pipelines) โ Robust backend systems (Node.js, Python, Django, .NET Core) โ Flexible CMS-driven systems โ Clean and maintainable APIs โ Secure, scalable databases & cloud infrastructure (AWS, Docker, CI/CD) โ Pixel-perfect UI with strong UX focus โ Fast iteration with production-ready quality โ End-to-end ownership โ Built to scale from day one ๐๐๐๐ก ๐๐ญ๐๐๐ค: React โข Next.js โข TypeScript โข Redux โข React Native Node.js โข Python โข Django โข .NET Core LLMs โข OpenAI / Anthropic APIs LangChain โข RAG โข Vector DBs Storyblok โข Sanity โข Headless CMS Stripe โข REST APIs โข Firebase MongoDB โข MySQL โข SQL AWS โข Docker โข CI/CD ๐ฉ Products grow. Architecture decides if they scale. Letโs build it right. #FullStackDeveloper #ReactJS #NextJS #AIAgents #LLM #AIIntegration #SaaSDevelopment #HeadlessCMS #Storyblok #SanityCMS #ProductEngineering #ScalableSystems #StripeIntegration #TypeScript
- React
- JavaScript
- TypeScript
- Next.js
- AI Agent Development
- Database Management System
- Retrieval Augmented Generation
- AI Development
- RESTful API
- Generative AI
- Python
- Node.js
- LangChain
- Full-Stack Development
- AI Chatbot
- SaaS Development
- CMS Development
- Stripe
- FinTech
- API Integration
Toronto, Canada
Most software systems donโt fail because of missing features, they fail because of weak architecture, unclear scalability decisions, and disconnected backend and frontend systems that were never designed to grow. I specialize in fixing and preventing those failures. I am a Senior Full-Stack Architect with 7+ years of experience building, scaling, and rescuing production-grade applications across SaaS platforms, enterprise systems, and AI-powered products. My work spans architecture design, full-stack implementation, system integration, and production hardening using React, Next.js, Node.js, Python, and modern AI frameworks. My focus is not task execution, it is system ownership. I help teams move from MVP to scalable production systems, integrate complex APIs and AI capabilities, and restructure broken or incomplete applications into maintainable, production-ready platforms. Core Expertise SaaS Architecture and Full-Stack Systems I design and build scalable SaaS platforms with strong architectural foundations, including: Multi-tenant system design using Supabase and PostgreSQL with Row Level Security Scalable frontend architecture using React and Next.js (App Router, SSR, ISR, caching strategies) Backend development using Node.js, NestJS, and Express with modular service design API orchestration layers using Backend-for-Frontend patterns, REST, and GraphQL System design focused on scalability, maintainability, and multi-team development I have worked on systems where multiple engineering teams deploy independently into a shared platform without breaking stability, achieved through Micro Frontend architecture and centralized shell design. AI Systems and LLM Integration I build production-ready AI systems embedded directly into real products, not prototypes. LLM integration using OpenAI, Claude, Gemini, and open-source models Retrieval-Augmented Generation (RAG) pipelines using LangChain and LlamaIndex AI agent workflows for automation, reasoning, and tool execution Vector database implementations using Pinecone, Weaviate, and ChromaDB Real-time AI systems using WebSockets and streaming responses AI cost optimization, prompt design, and failure handling strategies My focus is building AI systems that are reliable under real production usage, with proper grounding, fallback logic, and scalable architecture. Production Rescue and Legacy System Fixing A significant part of my work involves taking incomplete, broken, or poorly structured applications and turning them into production-ready systems. This includes: Cursor, Bolt, Lovable, and v0-generated applications that have hit architectural limits SaaS MVPs that function partially but cannot scale Codebases with weak structure, missing backend logic, or poor separation of concerns Frontend-heavy applications lacking proper API or database design I perform system audits, identify structural issues, and refactor or rebuild only what is necessary to make systems stable, scalable, and maintainable without unnecessary full rewrites. Technical Stack Frontend: React, Next.js, TypeScript, Tailwind CSS, Shadcn/UI, Redux Toolkit, Zustand, React Query Backend: Node.js, NestJS, Express, Python (FastAPI, Django, Flask), GraphQL, REST APIs Databases: PostgreSQL, MySQL, MongoDB, Supabase AI / LLM: OpenAI API, Claude API, Gemini API, LangChain, LangGraph, LlamaIndex, RAG pipelines, vector databases Infrastructure: AWS, Vercel, Docker, CI/CD pipelines using GitHub Actions Testing: Jest, Cypress, Playwright, React Testing Library Enterprise Aviation Platform โ Designed a Micro Frontend architecture using Webpack Module Federation enabling independent team deployments with a centralized shell for routing, auth, and shared state. Built a Backend-for-Frontend layer integrating REST and GraphQL APIs. Preplify โ Built a full-stack AI SaaS using Next.js with OpenAI and Gemini integrations, WebSocket-based real-time AI responses, and performance optimization via SSR/ISR. Cyber Mart โ Optimized a high-traffic Next.js SSR marketplace achieving 95+ Lighthouse scores and improved database performance by 40% through indexing and schema optimizations. Who I Work Best With SaaS founders moving from MVP to scalable production systems Engineering teams needing architecture leadership and system design support Startups building AI-powered applications with real-world integration requirements Teams facing scaling issues, technical debt, or fragmented systems Founders with partially built or โvibe-codedโ applications requiring production-grade restructuring Working Style I operate as a system-level engineer. I first analyze architecture, constraints, and scalability requirements before implementation. Clients can expect: Clear architectural direction before execution Honest assessment of system limitations and risks Maintainable, scalable code structure Consistent communication throughout delivery Focus on production stability, not just feature completion
- React Native
- React
- Front-End Development
- Next.js
- TypeScript
- Back-End Development
- Full-Stack Development
- Mobile App Development
- ChatGPT API
- ChatGPT API Integration
- AI App Development
- Python
- Artificial Intelligence
- Generative AI
- AI Agent Development
How it works
Post a job for free Post a job
Tell us what you need. Create your own job post or generate one with AI then filter talent matches.
Hire top talent fast
Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.
Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
Payment simplified
Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.
Don't just take our word for it
โUpwork provides an umbrella-level of security. I can see a talentโs work history and ratings. I can hold payments in escrow. I can communicate through Upwork Messages instead of working through my email address.โ
Kim Darling
Emerald Tiger
โUpwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.โ
David Merry
Kinetic Investments
โOur very specific requirements can be a challengeโWith Upwork, weโre able to access a bigger community to ensure the success of our projects.โ
Katja Krohn
Summa Linguae
Resources to help you hire

Cost to hire a React.js Developer
Explore typical React.js Developer rates and what businesses pay to hire top talent.

React.js Developer job description template
Get tips to write a job post that attracts qualified React.js developers.

React.js Developer interview questions
Top interview questions to help you hire the right React.js developers, faster.
Resources to help you hire

Cost to hire a React.js Developer
Explore typical React.js Developer rates and what businesses pay to hire top talent.

React.js Developer job description template
Get tips to write a job post that attracts qualified React.js developers.

React.js Developer interview questions
Top interview questions to help you hire the right React.js developers, faster.
How do I hire a React.js Developer in Canada on Upwork?
You can hire a React.js Developer in Canada on Upwork in four simple steps:
- Create a job post tailored to your React.js Developer project scope. We'll walk you through the process step by step.
- Browse top React.js Developer talent on Upwork and invite them to your project.
- Once the proposals start flowing in, create a shortlist of top React.js Developer profiles and interview.
- Hire the right React.js Developer for your project from Upwork, the world's largest work marketplace.
At Upwork, we believe talent staffing should be easy.
How much does it cost to hire a React.js Developer?
Rates charged by React.js Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.
Why hire a React.js Developer in Canada on Upwork?
As the world's work marketplace, we connect highly-skilled freelance React.js Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream React.js Developer team you need to succeed.
Can I hire a React.js Developer in Canada within 24 hours on Upwork?
Depending on availability and the quality of your job post, it's entirely possible to sign up for Upwork and receive React.js Developer proposals within 24 hours of posting a job description.
Find more freelancers
Top cities for React.js Developers in Canada
- CSS3 Developers in St. John's, NL
- CSS3 Developers in Burnaby, BC
- CSS3 Developers in Milton, ON
- CSS3 Developers in Scarborough, ON
- CSS3 Developers in Kingston, ON
- Front-End Developers in Toronto, ON
- TypeScript Developers in Fredericton, NB
- iOS Developers in Toronto, ON
- Ubuntu Developers in Ottawa, ON
- UX Designers in Montreal, QC
- UX Designers in Calgary, AB
- UX Designers in Vancouver, BC
- UX Designers in Ottawa, ON
- UX Designers in Toronto, ON
- Salesforce Developers in Toronto, ON
- Git Developers in Regina, SK
More top skills in Canada
- Laravel Developers in Canada
- Front-End Developers in Canada
- HTML Developers in Canada
- JavaScript Developers in Canada
- Express Js Developers in Canada
- TypeScript Developers in Canada
- Angular Developers in Canada
- PHP Developers in Canada
- Django Developers in Canada
- AWS Developers in Canada
- Web Application Developers in Canada
- Bot Developers in Canada
- Stripe Developers in Canada
- Node.js Developers in Canada
- WebGL Developers in Canada
- Microservices Developers in Canada