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Shahzad S.

Barrie, Canada

$50/hr
4.9
28 jobs
Full Stack AI SaaS Engineer | Building Cloud-Native, AI-Driven SaaS Platforms | Java/Spring Boot, LLMs, AWS & GCP, React, Next.js, Flutter I’m Shahzad, a Certified Java Architect with 10 + years of experience building scalable, high-performance SaaS applications, now focused on integrating AI and automation into modern cloud products. I’ve engineered AI-powered SaaS platforms that combine conversational intelligence, LLM pipelines, and serverless cloud infrastructure. My passion is turning complex workflows into simple, intelligent, user-friendly applications that scale globally. ------------------------------------------------ What I Build: AI-Driven SaaS Products: Multi-tenant cloud apps powered by LLMs (GPT, Claude), RAG, and custom ML APIs Conversational & Voice AI Agents: Twilio + n8n + GPT workflows for 24/7 automation (healthcare, enterprise) Data Intelligence Apps: predictive analytics, anomaly detection, recommendations, and real-time dashboards Cloud-Native Architectures: Java/Spring Boot microservices, REST/GraphQL APIs, and event-driven backends ------------------------------------------------ Core Stack: Backend & Cloud: Java (8 → 25), Spring Boot 3, AWS (Lambda, S3, RDS), GCP (BigQuery, Vertex AI), Docker, Kubernetes AI/ML: Vertex AI, OpenAI API, BigQuery ML, Python (NumPy, Pandas, Scikit-learn), RAG, LLM Integration Frontend: React, Next.js, TypeScript, Tailwind, Flutter (for cross-platform mobile apps) Integrations: Twilio, Stripe, Shopify, BigCommerce, REST/SOAP APIs, Kafka, RabbitMQ ------------------------------------------------ DevOps & Data: CI/CD pipelines with GitHub Actions & Jenkins Cloud monitoring & observability (CloudWatch, GCP Logging) SQL (PostgreSQL, MySQL) & NoSQL (MongoDB, Redis) ---------------------------------------------------- Certifications: Oracle Certified Java Programmer (2022) AWS Certified Developer – Associate (2023) Amazon Machine Learning Specialty (2023) Spring Boot 3 & Spring 6 Architect (2020) SAS Programming Essentials (2023) ------------------------------------------------ Let’s Build Something Smart: Whether you’re launching an AI-powered SaaS platform, a voice or chat agent, or a data-driven product, I can help you design and deliver a system that’s intelligent, scalable, and future-ready.
  • REST API
  • Java
  • Spring Framework
  • Spring Boot
  • Database Architecture
  • React
  • Machine Learning
  • Artificial Intelligence
  • AI Model Training
  • Python
  • Supabase
  • SaaS Development
  • Next.js
  • Full-Stack Development
  • Back-End Development
Najab S.

Milton, Canada

$30/hr
4.7
23 jobs
✅ 9+ Years in Software Development ✅ 60+ Successful Projects I've design and deliver fullstack solutions that merge AI, automation, and modern frontend engineering. My experience lies in building SaaS platforms, AI chatbots, and workflow driven applications. 🔹 What I Can Build for You Custom AI-Powered SaaS Applications – Tailored to your business needs AI Chatbots & Voice Assistants – WhatsApp, Instagram, Telegram, Facebook, Websites, SMS, IVR LLM Agents & Multi-Agent Workflows – LangChain, CrewAI, AutoGen Retrieval-Augmented Generation (RAG) Systems – Pinecone, FAISS, ChromaDB, Qdrant LLM Fine-Tuning & Prompt Engineering – LoRA, QLoRA, PEFT, HuggingFace Workflow Automations – n8n, Make.com, Zapier, CRM Integrations (HubSpot, Zoho, GHL) Data Pipelines – Scraping → Parsing → Enrichment → Delivery Computer Vision Applications – YOLO, UNet, DeepLab, OCR, Medical Imaging Full-Stack Development – React, Node.js, Flask, FastAPI, Django REST Backend & API Development – Secure APIs, microservices, real-time integrations 🔹 AI & GenAI Expertise LLMs – GPT-4, Claude, Gemini, LLaMA 3, Mistral, Phi-3 Conversational AI – Dialogflow, Botpress, Voiceflow, ManyChat, Twilio, Watson, Rasa Voice AI – ElevenLabs, Amazon Polly, Deepgram Generative AI – Text-to-Speech, Image Generation, Data Synthesis NLP – Summarization, Translation, Q&A, Classification Reinforcement Learning – Stable Baselines, Gymnasium Deployment – AWS (EC2, Lambda, S3), Docker, RunPod, Skypilot 🔹 Tools & Frameworks AI/ML – TensorFlow, PyTorch, HuggingFace, Transformers, Scikit-learn, OpenCV LangChain Ecosystem – LangChain, LangServe, LangSmith, Flowise Databases & Vector Stores – Pinecone, ChromaDB, FAISS, Qdrant, MongoDB, PostgreSQL Automation – n8n, Make, Zapier, Retool Backend & APIs – Python (FastAPI, Flask, Django), Node.js Frontend – React, Next.js, TailwindCSS Infrastructure – AWS, GCP, Docker 🔹 Industries I’ve Built AI for Customer Support (AI Agents, Ticket Automation) E-Commerce (Recommendation Bots, Checkout Assistants) Real Estate (Lead Gen Chatbots, Virtual Tours) Healthcare (AI Medical Assistants, Image Segmentation) Finance (Trading Bots, Market Data Analysis) Content Automation (Blog Generation, Social Media Bots) EdTech (Learning Assistants, Chat with PDF) 🔹 Why Work With Me? ✔ End-to-end delivery: from prototyping → training → deployment ✔ Skilled in AI + Automation + Full-Stack, not just one area ✔ Hands-on with enterprise-grade AI agent deployment ✔ Contributor to open-source GenAI frameworks ✔ Proven results: I turn manual workflows into automated AI-driven systems If you’re looking for a developer who can deliver next gen SaaS, AI assistants, or workflow automation platforms that scale with your business, let’s connect. AI Developer, ML Engineer, Generative AI, LLM Agents, RAG Systems, LangChain, CrewAI, AutoGen, AI Chatbot, Conversational AI, Voice AI, AI Agent, NLP, GPT-4, OpenAI, HuggingFace, Deep Learning, Computer Vision, YOLO, OCR, TensorFlow, PyTorch, n8n, Make.com, Zapier, Workflow Automation, CRM Integration, API Development, FastAPI, Flask, Django, Node.js, React, Next.js, Full Stack Developer, Backend Developer, Data Pipelines, Web Scraping, Vector Database, Pinecone, ChromaDB, FAISS, Qdrant, AWS, Docker, Automation Engineer. Full Stack Developer, Full Stack Development, Full Stack Engineer, Full Stack AI Developer, Full Stack Developer with AI Experience, Full Stack Web Developer, MERN, MERN Stack, MERN Stack Developer, MERN Stack Engineer, MERN Full Stack Developer, MERN Developer with AI Experience, Node, Node.js, Node js Developer, Node.js Engineer, Backend, Backend Developer, Backend Engineer, Backend Developer with AI Experience, Backend Automation Developer, Web Developer, Web Engineer, API Developer, API Integration Developer, API Automation Developer, JavaScript Developer, React Developer, MongoDB Developer, Express.js Developer, Python Developer, Python AI Developer, Automation Developer, Automation Engineer, Automation Expert, Workflow Automation Developer, Workflow Automation Engineer, N8N, N8N Automation, N8N Automation Expert, N8N Automation Developer, N8N Workflow Developer, N8N Workflow Engineer, Low-Code Automation Developer, No-Code Automation Expert, AI Workflow Developer, AI Workflow Engineer, AI Workflow Automation, Intelligent Automation Developer, Intelligent Automation Engineer, Data Automation Developer, Data Automation Engineer, AI Data Automation Specialis.
  • REST API
  • GPT Chatbot
  • OpenAI API
  • AI Chatbot
  • LangChain
  • n8n
  • Make.com
  • Machine Learning
  • React
  • Node.js
  • API Integration
  • Automation
  • Python
  • AI Builder
Syed M.

Mississauga, Canada

$51/hr
4.9
27 jobs
Want to save 30% full-stack development cost 📉 while boosting productivity 📈🚀? 🏆 Upwork Top Rated PLUS Professional (TOP 3%) 🏆 1000+ Hours on Upwork 🏆 15000+ development hours 💯 1 hour of response time with 100% Client Dedication! Want to work with the guy who has published and delivered web and mobile applications with over 10MILLION active users🚀 ? 🏆 A sharp cookie in top 3% of Upwork with almost decade long experience in front-end development (react.js, next.js, angular, vue.js), MEAN Stack, MERN Stack, and Mobile App Development (React native, Java, Kotlin)? My clients are bringing in innovative ideas, and i am helping them transform those into MILLIONS making products. I have specialized in writing full stack web and mobile applications with scalable code, component architecture as well as developing and managing mobile applications. • Core Skills: 📌 TypeScript 📌 React Native 📌 React.js 📌 Next.js 📌 Node.js 📌 Express.js 📌 MongoDB 📌 Angular 📌Java 📌Kotlin📌Vue.js | Nuxt.js 📌 Electron.js 📌 Three.js 📌 Nest.js 📌 Redux 📌 HTML 📌 CSS 📌 API Integration 📌 RestAPI Integration 📌ChatGPT API Integration 📌 📌 Code Management 📌 Git 📌 GitLab 📌 GitHub 📌 BitBucket 📌 Web Redesign 📌 Figma 📌 AdobeXD 📌 Material UI | Chakra UI | Ant Design | Semantic UI React | React Bootstrap | Styled-Components and so on. • Agile Methodology 📈 Expert in Agile principles Efficient project management Leader mindset • DevOps Engineering ⚙️ CI/CD Infrastructure as Code Git/GitHub/GitLab/Bitbucket Performance Monitoring 📱 Mobile App Development: React Native Kotlin Java Expo CLI 🖥️Web App Development: TypeScript JavaScript React.js Angular, Vue Next.js Nuxt.js Node.js MEAN Stack MERN Stack ☁️ Cloud Services: AWS Azure Firebase Latest Inclusions: Docker & Kubernetes: For containerization and orchestration. Serverless Architectures: Focusing on AWS Lambda and Azure Functions. Industries Worked in: 🏦 FinTech 🏥 Healthcare 🚕 Transport 📚 EduTech 🌐 SaaS 📲 IoT (Internet of Things) Why Choose Me?. ✅ Upwork Top Rated Freelancer. ✅ 100% Job Success Score (JSS). 🚀 Quality and Efficiency: Implementing Agile and DevOps for top-tier software delivery. 🎯 Client-Targeted Approach: Tailoring solutions to your unique requirements 🌍 Global Experience: Serving a diverse international clientele. Bell, TD Bank, CloudPayments, Tepia, JetBridge etc. 💡 Innovative Solutions: Continuously updating my skill set with the most trending technologies. Main strengths: ➳ Website development from scratch; ➳ Mobile Application Development; ➳ React Native App Development ➳ Kotlin App Development ➳ Java App Development ➳ ReactJS Apps Development ➳ NextJS Development ➳ TypeScript, Nest, Development ➳ JavaScript, jQuery, AJAX ➳ Figma to Bootstrap, Tailwind ➳ Figma to HTML ➳ SPA; ➳ MVPs for startups; ➳ SaaS applications; ➳ Social API integration (Facebook API, Twitter API, Instagram API, Pinterest API), Google Maps API integration; ➳ Integrate third-party API ➳ Upgrade legacy web app ➳ Stripe payment gateways integration. ➳ CSS Animation ➳ SVG Animation ➳Testing/Deployment (Amazon Web Services (AWS) |Jira | Jest | Firebase | Docker etc) ➳Back End Skills (Node.js | Express | MongoDB | Mongoose | MySQL | PostgreSQL | GraphGL) I spend most my time working with React.js, Node.js, React Native, JavaScript, Kotlin, Java, TypeScript, and attending code meetups. I like to use modern technology to build apps that look great and are creative. I enjoy learning about new technologies and studying new JavaScript libraries and frequent updates on mobile app development. Don't look any further for your Front-end developer/MERN Stack/ Mobile Application development job, drop me a line and lets start building! 🔗 Let's Connect! Cheers, Syed ----------------------------------------------------------------------------------------------------------------------- Keywords that can lead you to me: OpenAI Inc., Amazon Web Services, Vercel, Generative AI Software, PostgreSQL Programming, ChatGPT API Integration, AI App Development, API Development, Front-End Development, Figma, Material UI, Mobile App Development, iOS Development, Android App Development, MERN Stack, ChatGPT API, Artificial Intelligence, GraphQL, Ecommerce Website, HTML5, iOS, ChatGPT, GPT API, React Native, GitHub, ExpressJS, PostgreSQL, App Development, Git, Android, Tailwind CSS, Next.js Website, MongoDB, Full-Stack Development, TypeScript, Web Application, API Integration, Web Development, HTML, Node.js, SQL, React, CSS, API, JavaScript, Java, Grafana
  • Full-Stack Development
  • JavaScript
  • MERN Stack
  • React Native
  • Next.js
  • TypeScript
  • Node.js
  • API Integration
  • Mobile App Development
  • Website Redesign
  • SaaS Development
  • AI App Development
  • Mobile App Development Consultation
  • Figma
  • Web Development Consultation
Rajat K.

York, Canada

$21/hr
4.6
76 jobs
✅ Rewarded as 🏆 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 🏆 by Upwork (𝗧𝗼𝗽 𝟯%) ✅ 6200+ hours and still counting ✅ 60+ jobs completed successfully ✅ 100% Job Success (Client Satisfaction Ratio) ✅ 90% Clients Recommended to work with me ✅ 86% Long-term Repeat Clients ✅ 10+ Years Of Experience ✅ High-Quality Work ✅ Budget-friendly ✅ Fluent English Verified Whether you are a 𝗦𝘁𝗮𝗿𝘁𝘂𝗽, 𝗘𝘀𝘁𝗮𝗯𝗹𝗶𝘀𝗵𝗲𝗱 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 or looking for 𝗠𝗩𝗣, you will get 𝗛𝗶𝗴𝗵-𝗤𝘂𝗮𝗹𝗶𝘁𝘆 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 at an 𝗔𝗳𝗳𝗼𝗿𝗱𝗮𝗯𝗹𝗲 𝗖𝗼𝘀𝘁, 𝗚𝘂𝗮𝗿𝗮𝗻𝘁𝗲𝗲𝗱.💯 Interested? Just click on the '𝗜𝗻𝘃𝗶𝘁𝗲 𝘁𝗼 𝗝𝗼𝗯' button and let’s discuss your project and your vision.🤝 For me, 𝗖𝗟𝗜𝗘𝗡𝗧 𝗦𝗔𝗧𝗜𝗦𝗙𝗔𝗖𝗧𝗜𝗢𝗡 𝗖𝗢𝗠𝗘𝗦 𝗙𝗜𝗥𝗦𝗧.🎯 During the last 10+ years, I have developed many different types of Web, iOS and Android apps. 𝗙𝗼𝗼𝗱 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘆 𝗮𝗽𝗽, 𝗢𝗻-𝗱𝗲𝗺𝗮𝗻𝗱 𝗔𝗽𝗽, 𝗛𝗼𝗺𝗲 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗮𝗽𝗽, 𝗛𝗮𝗻𝗱𝘆 𝗺𝗮𝗻 𝗮𝗽𝗽, 𝗠𝗮𝗿𝗸𝗲𝘁𝗽𝗹𝗮𝗰𝗲 𝗮𝗽𝗽, 𝗦𝗮𝗹𝗼𝗻 𝗮𝗽𝗽, 𝗕𝗲𝗮𝘂𝘁𝘆 𝗮𝗽𝗽, 𝗧𝗮𝘅𝗶 𝗮𝗽𝗽, 𝗥𝗶𝗱𝗲 𝗮𝗽𝗽, 𝗘-𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲 𝗮𝗽𝗽, 𝗗𝗮𝘁𝗶𝗻𝗴 𝗮𝗽𝗽, 𝗛𝗲𝗮𝗹𝘁𝗵 𝗮𝗻𝗱 𝗳𝗶𝘁𝗻𝗲𝘀𝘀 𝗮𝗽𝗽, 𝗧𝗿𝗮𝘃𝗲𝗹 𝗮𝗽𝗽, 𝗟𝗶𝘃𝗲 𝗦𝘁𝗿𝗲𝗮𝗺𝗶𝗻𝗴 𝗮𝗽𝗽, 𝗩𝗶𝗱𝗲𝗼 𝘀𝘁𝗿𝗲𝗮𝗺𝗶𝗻𝗴 𝗮𝗽𝗽, 𝗙𝗶𝗻𝘁𝗲𝗰𝗵 𝗮𝗽𝗽, 𝗦𝗵𝗼𝗽𝗽𝗶𝗻𝗴 𝗮𝗽𝗽, 𝗧𝗲𝗹𝗲𝗺𝗲𝗱𝗶𝗰𝗶𝗻𝗲 𝗮𝗽𝗽, 𝗙𝗶𝗻𝗮𝗻𝗰𝗲 𝗔𝗽𝗽, 𝗥𝗲𝗮𝗹 𝗲𝘀𝘁𝗮𝘁𝗲 𝗮𝗽𝗽, 𝗦𝗼𝗰𝗶𝗮𝗹 𝗺𝗲𝗱𝗶𝗮 𝗮𝗽𝗽, 𝗖𝗵𝗮𝘁 𝗮𝗽𝗽, 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗮𝗽𝗽, 𝗠𝗲𝘀𝘀𝗮𝗴𝗶𝗻𝗴 𝗮𝗽𝗽, 𝗢𝗻𝗹𝗶𝗻𝗲 𝗲𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻 𝗹𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗮𝗽𝗽, 𝗛𝗼𝘁𝗲𝗹 𝗯𝗼𝗼𝗸𝗶𝗻𝗴 𝗮𝗽𝗽, 𝗚𝗿𝗼𝗰𝗲𝗿𝘆 𝗼𝗿𝗱𝗲𝗿 𝗮𝗽𝗽, 𝗔𝗜 𝗖𝗵𝗮𝘁𝗯𝗼𝘁, 𝗔𝗜 𝗪𝗲𝗹𝗹𝗻𝗲𝘀𝘀 𝗮𝗽𝗽, 𝗔𝗜 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗮𝗽𝗽, and many more. 🔹 By working with me, 𝗬𝗼𝘂'𝗹𝗹 𝘂𝗻𝗹𝗼𝗰𝗸:🚀 ✔ Your Reliable Partner: I always work towards your success ✔ Tech Expert for 10+ Years: Strong Android, iOS, and backend knowledge ✔ Quality Work, Affordable Prices: Creative and budget-friendly solutions ✔ Proven Track Record: Successfully built many high-quality apps ✔ Honest and Transparent Practices: No secrets, No unethical things, Just results ✔ Prompt Communication: Keeps you updated all the way ✔ Timely Delivery: Deliver Apps on time ✔ Latest Trends: Up-to-date with the latest technologies 🔹 My core skills and experiences:🔥 ◉ Interaction with backend - Rest API, JSON, XML ◉ Social Integration – Facebook, Twitter, Instagram, Google, Apple ◉ Chat - XMPP, Socket, Firebase, GetStream, Twilio, Agora ◉ Version Control Tools - Github, BitBucket, GitLab ◉ Google Maps, Apple Map kit, Geolocation, GPS, Location Tracking ◉ Audio / Video Live Streaming ◉ Firebase, FCM, FireStore, Firebase Analytics ◉ Paypal, Stripe, Square Payment Gateway ◉ QR Codes, Bar Codes, VIN, NFC Tags Reading ◉ In-app subscriptions, Ads, Push Notifications, Google Analytics ◉ Photo & Video Sharing, Editor, Filter ◉ AI, ChatGPT, OpenAI, AI chatbots 🔹 We work with the below technologies for development:📱💻 𝗖𝗿𝗼𝘀𝘀-𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺 (𝗛𝘆𝗯𝗿𝗶𝗱): React Native (Expo and CLI) 𝗪𝗲𝗯 / 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: Node.js, Express.js, Nest.js, .Net Core, Blazor Python, Django 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: Next JS/React.Js, HTML5, CSS3, BootStrap, JavaScript, jQuery 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: MySQL, MongoDB, PostgreSQL 𝗟𝗮𝘁𝗲𝘀𝘁 𝗧𝗿𝗲𝗻𝗱𝘀: Artificial Intelligence (AI), Augmented Reality (AR), Internet Of Things (IoT) 💬 𝗙𝗥𝗘𝗘 𝗖𝗢𝗡𝗦𝗨𝗟𝗧𝗔𝗧𝗜𝗢𝗡: My consultation is 𝗙𝗥𝗘𝗘. Let's schedule an introductory call and discover the possibilities of working together. Even if we don't work together, you will get some tips/ideas that can be helpful to your project. Just click on the '𝗜𝗻𝘃𝗶𝘁𝗲 𝘁𝗼 𝗝𝗼𝗯' button and experience yourself.🙌 Thank you for spending your $$ to review my profile because TIME IS MONEY :)
  • API Development
  • React Native
  • Mobile App Development
  • Node.js
  • React
  • API Integration
  • iOS Development
  • Android App Development
  • Expo.io
  • Mobile UI Design
  • Front-End Development
  • Next.js
  • React Bootstrap
Muhammad E.

Mississauga, Canada

$25/hr
5.0
9 jobs
Full-Stack Developer & Automation Engineer (React/Next.js, Node.js, Python) building Zapier/Make, n8n, and Google Apps Script workflows. I ship API integrations, web scraping, Google Sheets automation, and scheduled jobs fast and reliable. Full-Stack (React/Next.js, Node.js) Frontend: React, Next.js, TypeScript, Tailwind; SSR/SSG, SEO, forms, auth Backend: Node/Express, Python/FastAPI; REST/GraphQL; Stripe/Twilio/SendGrid Data & Infra: PostgreSQL, MongoDB, Prisma/ORMs, Redis; Docker, CI/CD, GitHub Actions, Vercel/AWS/Firebase Quality: clean architecture, logging, error handling, unit tests Automation & Scripting (Python + No-Code) Zapier, Make (Integromat), n8n multi-step flows (filters/paths, retries) Google Apps Script for Sheets, Gmail, Drive, Calendar (parsers, reports, dashboards) Web scraping (Selenium/Playwright, BeautifulSoup/Requests) → CSV/Sheets/DB API integrations & webhooks; schedulers (CRON/GitHub Actions); alerts to Email/Slack Typical results Save hours/week of manual work, reduce errors with validation/deduping, and ship features faster with stable CI/CD. Let’s start small: send 1 sample input + desired output. I’ll deliver a 1–2 hr paid pilot to prove value quickly. 🚀
  • REST API
  • API Development
  • Full-Stack Development
  • Google Apps Script
  • Zapier
  • n8n
  • Low-Code Development
  • Twilio
  • Python
  • Google Sheets
  • Node.js
  • Web Scraping
  • React
  • Next.js
  • Make.com
Adil W.

Mississauga, Canada

$50/hr
5.0
28 jobs
🚀 𝐉𝐚𝐯𝐚 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐒𝐩𝐫𝐢𝐧𝐠 𝐁𝐨𝐨𝐭 | 𝐌𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 | 𝐀𝐖𝐒 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 | 𝟏𝟑+ 𝐘𝐞𝐚𝐫𝐬 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 Are you looking for a senior Java backend expert who can design, build, and scale secure enterprise systems on time and with zero guesswork? I’m a certified Java developer with 13+ years of experience helping startups and Fortune 500 companies build scalable, cloud-ready, and high-performance applications using Java, Spring Boot, and Microservices architecture. 💡 What You’ll Get: - Clean, modular RESTful APIs built with Spring Boot & Java 8/11/17 - Secure microservices architecture with Spring Cloud & JWT/OAuth2 - Fast database integration using Hibernate, JPA, PostgreSQL, MySQL, and MongoDB - AWS Cloud deployment (EC2, S3, RDS, Lambda) - CI/CD pipelines, Docker & Kubernetes setup - Complete unit and integration testing with JUnit & Mockito 🎯I focus on building backends that are easy to maintain, fast to scale, and future-proof, saving you time and long-term costs. 📜Certifications - Oracle Certified Java Programmer (2013) - Oracle Web Services Certified Expert (2017) - AWS Certified Developer – Associate (2018) 💬 Let’s discuss your project. I respond quickly, provide regular updates, and deliver clean, production-ready code. If you’re looking for a reliable backend developer who thinks like an architect, click “Invite” to start collaborating today.
  • API
  • Java
  • Spring Boot
  • Core Java
  • Java Servlet API
  • Java Collections Framework
  • JUnit
  • Microservice
  • Java Persistence API
  • Spring MVC
  • Spring Cloud
  • Spring Batch
  • jQuery
  • jMock
  • Git

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Rates charged by REST API 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 REST API Developer in Canada on Upwork?

As the world's work marketplace, we connect highly-skilled freelance REST API Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream REST API Developer team you need to succeed.

Can I hire a REST API 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 REST API Developer proposals within 24 hours of posting a job description.