Hire the Best REST API Developers
in Canada

More than 3,000 reviews on G2
Rating is 4.5 out of 5.
4.5/5
of Upwork by G2 peer reviewers
Dhiraj S.

Brampton, Canada

$30/hr
5.0
6 jobs

12+ years of experience developing and supporting complex software solutions, with expertise in AI agents using Langgraph,STT,TTS,LiteLLM, RAG, OpenAI, LangChain, LlamaIndex, smolagents by hugging face, Vector stores, Flutter, Firebase, Java, Spring AI, Cloud Native technologies, DevOps, Microservices, REST APIs, and Agile/Scrum methodologies. Developed Capital Market and financial market applications using REST API from scratch, achieving significant performance improvements. Implemented AI-powered solutions leveraging LLM orchestration frameworks and semantic graph technologies. Deployed scalable, highly available and modular software products and introduced methodologies and best practices to software development teams.

  • REST API
  • API
  • API Development
  • Cloud Computing
  • Java
  • Kubernetes
  • MongoDB
  • Python
  • Oracle PLSQL
  • Spring Boot
  • Flutter
  • Apigee
  • LLM Prompt Engineering
  • Flask
  • Retrieval Augmented Generation
David K.

Toronto, Canada

$40/hr
4.8
8 jobs

- Software engineerring and data management - Microsoft "powerhouse" - expertise with MS SQL Server, C#, SSIS, SSRS, Power BI, Power Query, Azure, MS Access, Excel and Visual Basic for Applications (VBA) - Experienced in web developer, API developer, database engineering and ETL processes - Other skills - Javascript, jQuery, HTML, CSS, Angular, VB, Alteryx and CDATA, - Development of comprehensive back-to-front applications using software development lifecycle design (SDLC) methodologies – Agile and Waterfall – using robust design and coding standards

  • API
  • Microsoft SQL Server
  • C#
  • SQL Server Integration Services
  • Microsoft Power BI
  • Microsoft SQL Server Reporting Services
  • Microsoft Access
  • Microsoft Excel
  • Visual Basic for Applications
  • Web Development
  • JavaScript
  • HTML
  • CSS
  • Azure DevOps
  • .NET Core
Michael O.

Newbridge, Canada

$20/hr
5.0
2 jobs

I'm a Full-Stack Developer who builds fast, production-ready web applications, from polished Next.js frontends to scalable Go or Laravel backends. Most clients come to me when they need a Full-Stack Developer who can own the entire product: architecture decisions, API design, database modeling, frontend performance, and deployment, without needing to coordinate five different contractors. ✅ Next.js App Router specialist — RSC, server actions, dynamic routing ✅ Go (Gin/GORM) backend development for performance-critical APIs ✅ Laravel & PHP for rapid iteration and content-heavy platforms ✅ Available for both short-term projects and long-term contracts ━━━━━━━━━━━━━━━━━━━━━━━━ WHAT I BUILD AS A FULL-STACK DEVELOPER ━━━━━━━━━━━━━━━━━━━━━━━━ → Full-Stack Web Apps from scratch Next.js + TypeScript frontend paired with a Go or Laravel backend, PostgreSQL database, deployed and production-ready. I handle every layer so you're not stitching together work from multiple developers. → REST API Design & Backend Architecture Clean, versioned REST APIs built with Go (Gin) or Laravel. I think about scalability from the start — auth flows, rate limiting, schema design, and clear documentation. → MVP Builds for Startups Got an idea and a deadline? I can take a startup from wireframe to a deployed product fast. My stack is lean and proven — Next.js, Supabase or PostgreSQL, and Go or Laravel, depending on what the product needs. → Performance Optimization & SEO-Ready Builds Full-stack performance work: Core Web Vitals, server-side rendering, JSON-LD schema markup, image optimization, and Lighthouse scores that actually matter for search ranking. → WordPress Development Custom themes, plugin integrations, and performance-tuned WordPress builds — including REST API connections to headless or hybrid Next.js setups. → Codebase Refactors & Feature Additions Inheriting a messy codebase? I come in, map what exists, and improve it without breaking what's already working. ━━━━━━━━━━━━━━━━━━━━━━━━ TECH STACK ━━━━━━━━━━━━━━━━━━━━━━━━ ⚡ Frontend → Next.js, React, TypeScript, Tailwind CSS ⚡ Backend → Go (Gin/GORM), Laravel, PHP, REST APIs ⚡ Database → MySQL ⚡ Other → Git, Vercel, Cloudinary, Resend, WordPress ━━━━━━━━━━━━━━━━━━━━━━━━ WHY CLIENTS WORK WITH ME ━━━━━━━━━━━━━━━━━━━━━━━━ ✔️ Full ownership — I handle frontend, backend, and database. One developer, not a team. ✔️ Ships on time — I set realistic timelines and stick to them. ✔️ Clean code — I write maintainable, documented code you can hand off or build on. ✔️ Proactive communication — Daily updates, plain English, no jargon. ✔️ Thinks like a founder — I flag problems before they become incidents. Whether you need a Full-Stack Developer to build your next product from scratch, add features to an existing codebase, or bring technical structure to an early-stage startup, let's talk. 📩 Send me a message or invite me to your job. Full Stack Developer | Full-stack Developer | Full Stack | Developer | Web Developer | Web Applications | MVP Developer | SaaS Developer | Full Developer | Full-stack-developer | Next.js Developer | React Developer | TypeScript Developer | Go Developer | Laravel Developer | PHP Developer | WordPress Developer | REST API Developer | Backend Developer | Frontend Developer | API Integration | PostgreSQL | Supabase | Tailwind CSS | Node.js | Performance Optimization | SEO Developer | Web App Development | Startup Developer | CMS Integration | Cloudinary | Resend | Vercel | AI Integrations | Gin | GORM | Core Web Vitals | JSON-LD | Server-Side Rendering | SSR | App Router | React Developer | MVP Build | Codebase Refactor

  • REST API
  • Next.js
  • React
  • TypeScript
  • Golang
  • Node.js
  • PHP
  • Laravel
  • MySQL
  • Tailwind CSS
  • Full-Stack Development
  • API Integration
  • WordPress
  • Search Engine Optimization
Waqar Ali S.

Mississauga, Canada

$50/hr
5.0
26 jobs

Helping businesses streamline operations through successful Odoo ERP implementations, customization, integration, and digital transformation. I am an ERP Consultant, Solution Architect, and Odoo Specialist with 15+ years of experience in business software development and process automation. I help organizations implement Odoo Community and Enterprise editions to automate Sales, CRM, Purchasing, Inventory, Manufacturing, Accounting, HR, Projects, Field Service, Recruitment, Helpdesk, and other business operations. As the founder of Innovazy LLP and a Top Rated professional on Upwork, I have successfully delivered ERP, CRM, SaaS, and enterprise software solutions for clients across USA, Canada, and other international markets. ✅ Odoo Services 🔸 Odoo ERP Implementation & Deployment 🔸 Odoo Functional Consulting & Business Analysis 🔸 Odoo Community & Enterprise Customization 🔸 Odoo Module Development 🔸 Odoo Workflow Automation 🔸 Odoo CRM, Sales & Marketing Automation 🔸 Odoo Manufacturing (MRP) Implementation 🔸 Odoo Inventory & Warehouse Management 🔸 Odoo Accounting & Finance Customization 🔸 HR, Payroll & Recruitment Solutions 🔸 Odoo Studio & QWeb Report Development 🔸 Odoo Upgrade & Migration (v15, v16, v17, v18, v19) 🔸 Third-Party API Integrations 🔸 E-Commerce & Website Development 🔸 User Training & ERP Adoption Support ✅ Industry Experience 🔸 Manufacturing & Distribution 🔸 Retail & E-Commerce 🔸 Wholesale 🔸 Restaurants, Cafés, Food & Beverages 🔸 Construction & Contracting 🔸 Interior Design & Furniture Manufacturing 🔸 Real Estate 🔸 Recruitment & Staffing 🔸 Healthcare 🔸 Logistics & Transportation 🔸 Hospitality 🔸 Professional Services ✅ Technical Expertise Odoo Framework, Python, PostgreSQL, OWL, QWeb, XML, JavaScript, REST APIs, AWS, Azure, Docker, CI/CD, React.js, Node.js, .NET, and Enterprise System Integration. My approach focuses on understanding your business processes first and then configuring Odoo to match operational requirements, improve efficiency, increase visibility, and support business growth. Whether you need a complete ERP implementation, migration from legacy systems, custom module development, or ongoing Odoo support, I can help you deliver a scalable and future-ready solution. 💡 Let's discuss your business requirements and transform them into a successful Odoo ERP implementation. Odoo Consultant, Expert Odoo ERP Developer, Odoo ERP Implementation Specialist, Senior Odoo ERP Specialist, Full-Cycle Odoo Implementation, Odoo Customization and Configuration Expert, Odoo ERP Solutions Architect, Odoo Functional and Technical Expert, Odoo Certified ERP Consultant, Python-Based Odoo Developer, Odoo CRM Setup and Implementation, Odoo ERP Developer and Consultant, Odoo Inventory and Stock Management, Odoo Customization and Module Development, Odoo Website Design and Development, Odoo ERP Maintenance and Ongoing Support, Odoo ERP Deployment and Go-Live, Odoo System Configuration and Administration, Odoo Website Customization and Upkeep, Odoo ERP Technical Developer, Odoo Module Setup and Implementation, Odoo Odoo Server Setup and Infrastructure, Odoo Bespoke Module Development, Odoo ERP Project Lead, Senior Python Backend Developer, Odoo ERP Upgrade and Migration Specialist, Odoo Workflow Automation Expert, Odoo Business Process Optimization, Odoo Multi-Company Configuration, Odoo eCommerce and POS Developer, Odoo Accounting and Finance Implementation, Odoo HR and Payroll Configuration Specialist, Odoo Manufacturing and MRP Developer, Odoo Data Migration Expert, Odoo.sh Deployment Specialist, PostgreSQL Database Optimization, Odoo Quality Control Module, Odoo REST API Developer, Odoo Enterprise Edition Expert, Digital Transformation Expert, ERP Software

  • Odoo
  • Odoo Development
  • Odoo Administration
  • ERP Software
  • Enterprise Resource Planning
  • Enterprise Software
  • Enterprise Software Development
  • Accounting Software
  • Point of Sale & Payment Systems
  • Digital Transformation
  • Accounting Tools Setup
  • Python
  • OWL
  • XML
  • CSS
  • HTML
  • JavaScript
  • PostgreSQL
  • Database Management
  • API Integration
Shazar K.

Toronto, Canada

$18/hr
5.0
10 jobs

MERN Stack & SaaS Developer with 5+ years building scalable web apps, MVPs, and full-stack platforms for startups and growing businesses. I ship clean code and production-ready products on time. If you need a React, Node.js, and MongoDB developer who takes full ownership from architecture to development, you are in the right place. 𝑾𝒉𝒂𝒕 𝑰 𝑩𝒖𝒊𝒍𝒅: ✦ SaaS platforms→ multi-tenant apps, subscription billing (Stripe), role-based auth, admin dashboards ✦ Full-Stack MERN web apps→ React.js / Next.js frontends + Node.js / Express.js backends ✦ REST API & GraphQL development→ secure, documented, scalable API architecture ✦ MVP development → idea to deployed product in weeks, not months ✦ E-Commerce platforms → custom carts, payment gateways, inventory systems ✦ AI integrations → OpenAI API, ChatGPT, LangChain, automation workflows 𝑴𝒚 𝑻𝒆𝒄𝒉 𝑺𝒕𝒂𝒄𝒌: → Frontend: React.js · Next.js · TypeScript · JavaScript · Tailwind CSS · Redux → Backend: Node.js · Express.js · NestJS · REST APIs · GraphQL · WebSockets → Database: MongoDB · PostgreSQL · MySQL · Firebase · Redis → Cloud & DevOps: AWS (EC2, S3, Lambda) · Docker · CI/CD · Vercel · DigitalOcean → Auth & Payments: JWT · OAuth2 · Stripe · PayPal · Razorpay 𝑾𝒉𝒚 𝑪𝒍𝒊𝒆𝒏𝒕𝒔 𝑾𝒐𝒓𝒌 𝑾𝒊𝒕𝒉 𝑴𝒆: ✦ Clean, maintainable code → no spaghetti, no shortcuts ✦ Full ownership → I handle architecture, dev, testing, and deployment ✦ Clear communication → daily updates, transparent milestones, fast responses ✦ Long-term reliability → I build systems that scale as your business grows 𝑰𝒏𝒅𝒖𝒔𝒕𝒓𝒊𝒆𝒔 𝒔𝒆𝒓𝒗𝒆𝒅: SaaS · FinTech · E-Commerce · EdTech · Healthcare · Real Estate · Marketplace CRM/ERP Click “Invite” and let’s turn your idea into a successful, scalable product. MERN Stack Developer | Full Stack Developer | React Developer | Node.js Developer | Next.js Developer | TypeScript Developer | SaaS Developer | MongoDB Developer | REST API Developer | JavaScript Expert | Express.js | GraphQL | AWS Developer | MVP Development | Web App Developer | API Integration | Stripe Integration | NestJS | Redux | Tailwind CSS

  • REST API
  • Full-Stack Development
  • MERN Stack
  • React Native
  • Node.js
  • MongoDB
  • Next.js
  • JavaScript
  • TypeScript
  • ExpressJS
  • SaaS Development
  • GraphQL
  • AWS DeepLens
  • PostgreSQL
  • Tailwind CSS
  • API Integration
Salman A.

London, Canada

$25/hr
5.0
23 jobs

I help startups and enterprises build modern SaaS platforms, cross-platform mobile apps, and secure APIs using the MERN/MEAN stack, React Native, and AWS cloud services. With 8+ years of full-stack experience, I have delivered MVPs, SaaS dashboards, eCommerce platforms, CRMs, LMS, Healthcare, FinTech and Real Estate applications. 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: - Frontend: React.js, React Native, Angular, Next.js, Vue.js, Nuxt.js, TypeScript, Tailwind, Material UI, Bootstrap, Redux, Zustand, Shopify - Backend: Node.js, Express.js, Nest.js, PHP, Laravel - Databases: MongoDB, PostgreSQL, MySQL, Firebase, Redis - Cloud & DevOps: AWS (Lambda, ECS, S3, RDS), Docker, Microservices, CI/CD - Testing & Tools: Prisma, Jest, React Testing Library, Cypress, Mocha, Git, GitHub Actions, Serverless Framework - APIs & Security: REST, GraphQL, WebSockets, OAuth, JWT, Third-party APIs - Payments: Stripe, PayPal, Apple Pay, Google Pay 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲: - Built SaaS apps serving worldwide users & optimized systems for faster performance. - I don’t just code, I solve real business problems. - Clean, modular code that grows with your business. - Clear updates, no surprises. 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗲𝗹𝗶𝘃𝗲𝗿: - Full-stack web apps with React, Angular, Node.js, Express, MongoDB, PostgreSQL - Cross-platform mobile apps in React Native (iOS & Android) - API Development & Integrations (REST, GraphQL, WebSockets, third-party APIs) - AWS Cloud Deployments (Lambda, ECS, S3, RDS, CI/CD pipelines) - Secure Architectures (OAuth, JWT, HIPAA compliant flows) - Performance Optimization (Core Web Vitals, SEO, faster load times) 𝗟𝗲𝘁’𝘀 𝗧𝗮𝗹𝗸: If you need a MERN/MEAN or React Native expert to turn your idea into a scalable product, send me a message. I will help you launch faster, scale smarter, and grow your business. 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: MERN Stack Developer, MEAN Stack Developer, Full Stack Developer, React Developer, React Native Developer, Node.js Developer, Next.js Developer, Angular Developer, JavaScript Developer, TypeScript Developer, SaaS Developer, API Developer, Backend Developer, Frontend Developer, Web Application Developer, Mobile App Developer, AWS Developer, Cloud Engineer, Microservices, Serverless, MongoDB, PostgreSQL, Express.js, NestJS, AI Integration, OpenAI API, ChatGPT API, Stripe Integration, GraphQL, REST API, Firebase, Docker, CI/CD.

  • Full-Stack Development
  • JavaScript
  • AI Chatbot
  • Artificial Intelligence
  • Machine Learning
  • Automation
  • Python
  • Django
  • AI Agent Development
  • OpenAI API
  • AWS Amplify
  • LLM Prompt Engineering
  • Next.js
  • React Native
  • Mobile App

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