Hire the Best NoSQL Developers
in Canada

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.

🚀 Boost Your Digital Presence with Scalable, High-Performance Full Stack Solutions! I am a seasoned Full Stack Developer with extensive experience in Python/Flask/Django/FastAPI, React/Angular/Next.js, and Java Spring Boot. I design and build robust, scalable web applications using modern frontend frameworks like React, Next.js, and Tailwind CSS, along with backend development in Python (Django, Flask, FastAPI) and Java (Spring Boot, Hibernate, JAX-RS). My solutions leverage secure API integration, efficient database management (PostgreSQL, MySQL, MongoDB), and cloud deployment (AWS, Google Cloud, Docker, CI/CD) to ensure your application performs at its best. 🔥 What I Do: • Frontend Development:  – Build responsive, SEO-optimized user interfaces using React, Next.js, TypeScript, Tailwind CSS, and modern UI component libraries. • Backend & API Development:  – Develop robust RESTful and GraphQL APIs using Python (Django, Flask, FastAPI) and Java (Spring Boot), ensuring scalability and maintainability.  – Set up scalable project foundations with PostgreSQL, Prisma, and GraphQL while following best practices. • Full Stack Integration & Cloud Deployment:  – Seamlessly integrate frontend and backend systems with detailed documentation and code structuring.  – Deploy applications on AWS, Google Cloud, or similar platforms using Docker and CI/CD pipelines for 24/7 high availability. • Additional Capabilities:  – Experience with Node.js, Git, automated testing (JUnit, Selenium, PyTest), and agile methodologies.  – Proven track record in setting up scalable Next.js projects and integrating complex backend systems, including API integrations for services like Twilio, and handling databases like PostgreSQL and MongoDB. 💡 Why Choose Me? • Proven Expertise: I’ve successfully delivered projects—from scalable Next.js foundations with TypeScript, PostgreSQL, Prisma, and GraphQL, to full-stack applications with FastAPI/Django backends integrated with responsive React interfaces. • Customized Solutions: I work closely with you to tailor solutions that reflect your unique business strategies, whether for short-term projects or long-term collaborations. • Transparent Communication: I provide clear, regular updates, thorough documentation, and agile project management to ensure your vision is realized. 📈 Let’s Build Your Next Scalable Web Application! ✉️ 𝗠𝗘𝗦𝗦𝗔𝗚𝗘 𝗠𝗘 now or 𝗜𝗡𝗩𝗜𝗧𝗘 𝗠𝗘 to your job for a 𝗙𝗥𝗘𝗘 𝗖𝗢𝗡𝗦𝗨𝗟𝗧𝗔𝗧𝗜𝗢𝗡—let’s discuss how we can transform your complex requirements into an elegant, high-performance solution that drives your business forward!

I have more than 8 years of experience designing and developing websites using a variety of technologies for Web Apps and Mobile Apps. To view some of my projects and to get to know me better visit: nk.vercel.app/projects Languages: Javascript, Python and PHP Front-end: React + Typescript, NextJs + Typescript, VueJs , Wordpress + Theme Development Back-end: NodeJs, Django, Flask, Serverless Lambda API: RestAPI, GraphQL Implementation: Monolithic, Microservices, Server-side, Client-side, PWA Mobile: React Native (Android + IOS Development) Database: Postgres, MongoDB, MySQL, Firebase, Firestore, SQLlite Aws: S3, Lambda, Route 51, EC2, Cloudfront, DynamoDB, Amplify, AppSync Version Control: Git, Github, Bitbucket Analytics & Ads: Google Analytics, Google Adwords Adobe: Illustrator, Photoshop, Indesign, AdobeXD

🚀Top 1% React Native Developeron Upwork (Expert-Vetted) 🚀 267+ Successfully Completed Projects ⏱️ 23,000+ Hours of Production Development 💼 15+ Years of Commercial Full Stack Experience 💰 Contributed to Products Generating $25M+ in Revenue ⚡ Built 50+ SaaS, AI, FinTech & Enterprise Applications 🌍 Trusted by Startups, Agencies & Enterprise Teams Worldwide ⸻ I am a Full Stack Developer ⚡ building production-ready web and mobile applications. I work as a full stack developer, full-stack developer, fullstack developer, senior full stack developer, web developer, software engineer, front-end developer, frontend developer, backend developer, React developer, Next.js developer, Node.js developer, JavaScript developer, TypeScript developer, WordPress developer, Shopify developer, Python developer, Python full stack developer, Laravel developer, PHP developer, AI developer, blockchain developer, and full-stack web developer. My core specialization is React development ⚛️. I build SaaS platforms, AI products, marketplaces, dashboards, CRM systems, and scalable applications using React, Next.js, JavaScript, TypeScript, React Native, Vue.js, Angular, Flutter, HTML5, CSS3, SCSS, Tailwind CSS, Bootstrap, Material UI, and Shadcn UI. On the backend, I build with Node.js, Express.js, PHP, Laravel, Python, PostgreSQL, MySQL, MongoDB, Supabase, Firebase, SQL, NoSQL, GraphQL, REST APIs, Docker, AWS, and Vercel 🐍. I develop REST APIs, AI integrations, authentication, payment gateways, third-party integrations, and scalable backend systems as a Node.js developer, backend developer, PHP full stack developer, Laravel developer, Python developer, and Python full stack developer. For CMS and eCommerce projects, I work as a WordPress developer, WordPress full stack developer, WordPress frontend developer, Shopify developer, Shopify frontend developer, Shopify theme developer, WooCommerce developer, and headless CMS developer 🛒. I build custom themes, plugins, storefronts, API integrations, and convert Figma to React, Figma to HTML, and PSD to HTML. I collaborate with startups, SaaS founders, agencies, and enterprise teams, owning the entire product lifecycle—from architecture and development to deployment, CI/CD, optimization, and long-term support. If you’re looking for a Full Stack Developer, React Developer, Next.js Developer, Node.js Developer, JavaScript Developer, TypeScript Developer, Python Developer, Laravel Developer, WordPress Developer, Shopify Developer, AI Developer, Frontend Developer, or Backend Developer, I’m ready to help. Let’s build something great together. 🤝 keywords: full stack developer, full stack, full-stack developer, fullstack developer, web developer, react developer, wordpress developer, mobile app developer, software developer, blockchain developer, python developer, python full stack developer, full stack developer ai, full stack developer react, full stack developer shopify, full stack developer laravel, php fullstack developer, fullstack developer figma mongo sql react next video streaming, front-end developer full-stack, full-stack Front-end developer, Frontend developer, Front-end developer, front end developer, react frontend developer, frontend developer angular, front end developer react, wordpress front end developer, shopify front end developer, front end developer figma, JavaScript, TypeScript, React, React Native, Vue.js, Angular, Flutter, Node.js, PHP, Laravel, Python, MySQL, MongoDB, HTML, HTML5, CSS, CSS3, SCSS, jQuery, Webflow, WordPress, Figma, Git, Web design, Responsive design, UI/UX, PSD to HTML, Website, Web application, full-stack web developer, backend developer, front-end development framework web developer, wordpress developer, full stack developer, front end developer, shopify developer, react developer, react native, react js, frontend react, java react full stack developer, python full stack developer, .net full stack, wordpress full stack, full stack developer react, full stake developer front end developer, front end developer react, front end designer, shopify front end developer, front end engineer, front-end developer, JavaScript React Node.js HTML5 Web Development PHP Next.js TypeScript CSS Tailwind CSS HTML API API Integration Web Design PostgreSQL API Development CSS 3 MongoDB WordPress Full-Stack Development jQuery Python Web Application CMS Development Website RESTful API React Native AngularJS Supabase Front-End Development AI Development ExpressJS Android App Development Website Redesign NestJS RESTful Architecture MySQL .NET Framework Responsive Design Docker Tailwind UI n8n Web3 OpenAI API Graphic Design Landing Page SaaS Angular Redis Vue.js Amazon Web Services Database Architecture AI App Development Ruby on Rails REST API C#

👋 Hey, thanks for stopping by my profile. 🚀 Flutter Developer | AI-Powered Builds | Top Rated Plus on Upwork I've spent the last 8 years turning app ideas into things people actually use. Most of that has been deep in Flutter, building cross-platform apps that feel native on both iOS and Android — but I've also worked with native Java/Kotlin, full-stack web, and a handful of other languages along the way (JavaScript, PHP, HTML/CSS, Dart, Vue Js, React and AWS). Lately, I've been a bit obsessed with how AI changes the way I work. I use AI-assisted tools to prototype faster, catch bugs earlier, and iterate quicker — which means you get the same quality, just sooner and often for less. And when a project calls for speed over a full custom build, I'll reach for no-code and low-code tools to get an MVP in your hands fast, so you can test the idea before sinking a budget into it. 🌟 Why Choose Me? ✔ Expert in Flutter: I craft cross-platform apps with native-like feel and performance — one codebase for iOS and Android means lower cost and faster time-to-market. ✔ AI-Powered Productivity: I integrate AI tools into my development process to accelerate delivery without cutting corners — faster prototyping, smarter debugging, automated testing, and quicker iterations. You get the same quality, delivered sooner. I also build AI features into apps: chatbots, smart search, content generation, and API integrations with leading AI models. ✔ No-Code & Low-Code Solutions: When speed and budget matter most, I leverage no-code and low-code platforms to stand up MVPs, internal tools, and rapid prototypes — so you can validate your idea quickly before investing in full custom development. ✔ Custom App Development: Whether you need a sleek UI, complex functionality, or third-party integrations, I tailor your app to your exact specifications. ✔ Strong Problem Solver: I thrive on challenges. No matter the complexity, I'm committed to finding the best solution to meet your goals. ✔ Responsive Communication: Clear, transparent communication drives successful projects. I'm available to discuss progress, answer questions, and address concerns promptly. Here's what I'm good at: 🌟 Flutter & mobile Development: ✔ clean, responsive UI ✔ Firebase ✔ push notifications ✔ Google/Facebook/Apple sign-in ✔ Maps ✔ ads ✔ API integration ✔ Basically, everything it takes to ship a polished app. 🌟 AI features & automation user of AI tools ✔ adding chatbots, smart search, and content generation into apps, plus integrating the major AI models via API. I also automate the boring parts of a workflow so the app (and the team behind it) runs leaner. ✔ Claude code, Cursor, and many more 🌟 No-code / low-code ✔ Fast MVPs, internal tools, and quick prototypes when validating an idea matters more than a from-scratch build. 🌟 Full-stack ✔ REST and GraphQL APIs, auth, SQL and NoSQL databases, deployment, and third-party integrations. Comfortable across AWS too. What it's like working with me: I'm a straightforward communicator — I'll keep you in the loop, flag issues early instead of at the deadline, and tell you honestly if I think there's a better way to do something. I genuinely like solving hard problems, so the messy, complicated projects don't scare me off; they're usually the fun ones. If you've got an idea — I'm committed to your project's success. Let's collaborate to create an app that exceeds your expectations. Talk soon, Sheetal S.

𝐄𝐱𝐩𝐞𝐫𝐭-𝐕𝐞𝐭𝐭𝐞𝐝: 𝐓𝐨𝐩 𝟏% 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤 Want to build a new product, a custom AI solution, or get help with setting up AI workflows? Let's talk. I'm an expert software engineer & data scientist with 10+ years of experience (4 years at Meta). Earned the Expert Vetted badge going through the interview with Upwork (only visible to enterprise clients). I help founders and businesses design and ship production-ready automations and software — and I also act as an AI workflow consultant, identifying where automation and LLM systems can meaningfully reduce costs and improve operations. Things I help with: - AI transformation & workflow automation - Modern, clean, responsive web apps / MVPs - AI / LLM / RAG system design & deployment - API integrations with existing CRMs / billing / ops systems - Secure SQL / NoSQL / distributed architectures - Infrastructure that scales If you’re launching a new software / AI product or exploring how AI can streamline your business, I can both design the strategy and build the system end-to-end. Looking forward to partnering together in taking your ideas and business to the next level!