I'm a Senior Full Stack & Backend Developer with extensive experience building scalable web applications, APIs, and enterprise-grade backend systems. I specialize in designing robust architectures, developing high-performance server-side solutions, and creating seamless user experiences across modern web platforms. My expertise includes Node.js, PHP, Python, JavaScript/TypeScript, React, Next.js, REST APIs, GraphQL, databases (MySQL, PostgreSQL, MongoDB), cloud services, and system integrations. I focus on writing clean, maintainable code and delivering secure, efficient, and scalable solutions tailored to business requirements. Whether you need a custom web application, backend development, API integration, database optimization, performance improvements, or full-stack product development, I can help turn your ideas into reliable, production-ready solutions. I'm committed to delivering high-quality results, clear communication, and long-term value for every project.

𝟖+ 𝐲𝐞𝐚𝐫𝐬 | 𝐀𝐈 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 | 𝐓𝐨𝐩 𝐫𝐚𝐭𝐞𝐝 | 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐑𝐞𝐚𝐜𝐭.𝐣𝐬 | 𝟏𝟎𝟎% 𝐣𝐬𝐬 I build production-ready Web apps, SaaS platforms, internal tools, and ecommerce systems as a Full Stack Developer who owns the entire stack, from database design through deployment on AWS. Over 8+ years, I've delivered SaaS products where I led technical direction end-to-end as a Full Stack Developer. My work typically involves designing backend architecture in Node.js and Express, building scalable APIs, and pairing them with clean React.js, Next.js or Angular frontends. I don't split roles, I architect, build, test and ship complete systems myself. What I focus on as a Full Stack Developer: My day-to-day as a Full Stack Developer means thinking about both layers simultaneously. A robust backend doesn't matter if the frontend can't consume it cleanly. A beautiful interface breaks if the API doesn't scale. So I design backwards from user workflows and forwards from infrastructure constraints. When you hire a Full Stack Developer like me, you're not paying for coverage across two domains, you're getting someone who treats the entire system as one cohesive problem. That changes how I approach every decision, from schema design to component architecture. Core strengths as a Full Stack Developer: I regularly work on Full Stack Developer projects that require: Multi-tenant SaaS architectures with role-based access and permissions Complex internal dashboards and workflow tools for teams Ecommerce platforms and custom Shopify app builds Payment integrations, ledger systems, and financial workflows Third-party API integrations and real-time data sync pipelines AI-powered backend features, not just prompt wrappers, but thoughtful integration into actual product workflows Scalable query logic and database optimization from a Full Stack Developer perspective On the backend side, where most of my time sits as a Full Stack Developer, I design services in Node.js and Express, manage PostgreSQL and MongoDB databases, handle background jobs and async workflows, and deploy everything on AWS infrastructure (EC2, S3, CloudFront, Route 53). TypeScript is standard across my Full Stack Developer work. I approach backend design the way a Full Stack Developer should: not in isolation, but thinking about how frontend code will consume it, how operations teams will monitor it, and how it'll perform under real load. On the frontend side, as part of being a Full Stack Developer, I build interfaces in React.js, Next.js or Angular depending on what the product needs. I prioritize performance, accessibility and maintainability over trendy patterns. Working as a Full Stack Developer on the frontend means understanding that component choices cascade into backend implications. If a page loads 100 records, that 𝐌𝐲 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 ▪ 8+ years of professional Full Stack development ▪ Strong expertise in MEAN/MERN (MongoDB, Express, Angular/React, Node.js) ▪ Experience as a Lead Full stack Developer owning architecture & technical decisions ▪ Delivered AI-enabled web applications for startups & SaaS companies ▪ Proven ability to optimize performance, scalability & system reliability 𝐌𝐲 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 Frontend ▪ React.js, Next.js, Angular, TypeScript, JavaScript (ES6+), HTML5, CSS3, SASS / SCSS, Responsive & Cross-browser UI Backend ▪ Node.js, Express.js, REST APIs, Authentication & Authorization Databases ▪ MongoDB, MySQL, PostgreSQL 𝐀𝐈, 𝐋𝐋𝐌𝐬 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 ▪ LLM & Generative AI integration (OpenAI, Anthropic, Gemini, LLaMA) ▪ AI workflows using LangChain, Vertex AI & Document AI ▪ Machine Learning & Deep Learning (PyTorch, TensorFlow, scikit-learn) ▪ Computer Vision solutions using OpenCV ▪ AI automation & orchestration using n8n ▪ AI-assisted development with Antigravity, CursorAI & GitHub Copilot 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐈 𝐅𝐨𝐜𝐮𝐬 𝐎𝐧 ✔ Full Stack Development (MEAN, MERN) ✔ Angular Application Development ✔ React.js Frontend Development ✔ Node.js Backend Development ✔ AI-Integrated Web Applications ✔ SaaS & Startup MVP Development ✔ API Development & Integration ✔ Performance Optimization ✔ AI Development 𝐃𝐨𝐦𝐚𝐢𝐧 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 ▪ Custom Digital Products & Software Solutions ▪ AI-Powered Applications & Intelligent Systems ▪ Business Process Automation Tools ▪ Startup MVPs (Idea → Execution) ▪ Dashboards & Admin Panels ▪ CRM & Custom Business Applications 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞 ✔ Free 30-minute consultation before starting ✔ 8+ years of Full Stack experience ✔ Expert in Angular, React.js, Node.js, MEAN/MERN & AI ✔ Clean, scalable & maintainable code ✔ Clear communication & proactive ownership Angular Developer | React.js Developer | Node.js Developer | MEAN Stack Developer | MERN Stack Developer | Full Stack Developer | AI Engineer | JavaScript Developer | SaaS Developer | Startup Developer | Supabase

⭐️ Top Rated Plus - Top 1% of talent on Upwork 🕒 5,000+ hours on Upwork ✅ 8+ years of experience ✅ 50+ projects delivered ✅ Excelling in delivering Fortune 100-scale projects 8+ years of experience as a software engineer, and have worked at both small startups and large organizations. While I'm a proficient full-stack developer, my expertise is in building scalable Applications in (.NET Core, CQRS, Azure, API Services, ASP.NET MVC C#, MS SQL Server, VB.NET, EFCore, MongoDb, JIRA, Git, RabbitMQ, QuickBooks Integration, Micro Services, BitBucket, Unit Testing and DevOps). One recent project involved migrating a large legacy ASP MVC app to ASP.NET Core SaaS app. Responsible for implementing: - ASP.NET Core app with Core Identity for authentication and authorization - I also implemented JWT Token based claims and authentication. - REST API for WordPress clients - EF Core code first with SQL server - Background service for implementing long running tasks from API requests - SignalR for notifying clients of the status of the long running tasks - Stripe integration for one off card charging, and monthly subscriptions Another large project for a financial services firm involves: - working with a UI designer to redesign the UI (Bootstrap, jQuery, CSS, JS) - next phase to redesign back end with new REST API for a new Angular client Professionally, I have B.S (Software Engineering)

I’m a Senior Full Stack Developer specializing in building scalable, secure, and high-performance web, mobile, and desktop applications. My backend expertise includes C#, .NET, ASP.NET MVC, ASP.NET Core, Web API, Entity Framework, LINQ, SQL Server, and Node.js. I have experience developing robust APIs, business logic, database-driven applications, background services, and integrations with third-party systems. For frontend development, I work with modern technologies including React, Angular, Next.js, Vue.js, JavaScript, TypeScript, HTML, and CSS to build responsive, dynamic, and user-friendly web applications. I also develop cross-platform mobile applications using React Native and .NET MAUI for Android and iOS, allowing businesses to build and maintain applications across multiple platforms. My cloud experience includes Microsoft Azure and AWS, covering application hosting, cloud storage, databases, serverless solutions, monitoring, and deployment. I also work with authentication and identity management, payment gateways, third-party APIs, and various external service integrations. I use modern AI-assisted development tools such as ChatGPT, Cursor, Claude, and GitHub Copilot as part of my development workflow for coding, debugging, code reviews, optimization, and exploring technical solutions. With experience across backend, frontend, mobile, cloud, and integrations, I can work on complete full-stack solutions as well as contribute to specific areas of an existing application.

𝗜 𝗮𝗺 𝗮 𝗦𝗲𝗻𝗶𝗼𝗿 𝗳𝘂𝗹𝗹-𝘀𝘁𝗮𝗰𝗸 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘄𝗶𝘁𝗵 𝟭𝟮+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗰𝗼𝘂𝗽𝗹𝗲𝗱 𝘄𝗶𝘁𝗵 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 in Python 3, FastAPI, Django/ Django REST Framework, Flask, JavaScript, NodeJS, ExpressJS, PHP/ Laravel, RESTful API, JWT(JSON Web Token), JSON, XML, Elasticsearch, Apollo/ GraphQL, AWS EC2, S3, ELB, REDIS, Amplify, Serverless Lambdas, Terraform, API Gateway, Azure, Google Cloud Platform, MySQL, Postgres, MongoDB, Supabase, Docker, Docker Swarm, Kubernetes k8, Microservices architecture, Linux, etc. My expertise extends to HTML5, CSS3, jQuery, Vue.js, React.js, Next.js, Nuxt.js, Angular(up to version 19), Bootstrap 4/5, TailwindCSS, Material UI, SCSS, SASS, etc. And, I have solid experience with DevOps, including CI/ CD, Git, etc. I'm proficient in Git for version control and utilizing Docker containers for seamless deployment. 𝗔𝗜 𝗧𝗼𝗼𝗹𝘀 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: 𝗖𝘂𝗿𝘀𝗼𝗿 𝗔𝗜 | 𝗥𝗲𝗽𝗹𝗶𝘁 | 𝗟𝗼𝘃𝗮𝗯𝗹𝗲 | 𝗚𝗼𝗛𝗶𝗴𝗵𝗟𝗲𝘃𝗲𝗹 | 𝗔𝗶𝗿𝘁𝗮𝗯𝗹𝗲 | 𝗕𝗮𝘀𝗲 𝟰𝟰 | 𝗢𝗽𝗲𝗻𝗔𝗜 | 𝗛𝘂𝗴𝗴𝗶𝗻𝗴 𝗙𝗮𝗰𝗲 | 𝗖𝗹𝗮𝘂𝗱𝗲 | 𝗖𝗼-𝗣𝗶𝗹𝗼𝘁 | 𝗠𝘆 𝘃𝗮𝗹𝘂𝗲-𝗮𝗱𝗱𝗲𝗱 𝘀𝗸𝗶𝗹𝗹𝘀: ✅Ability to collaborate effectively with a team of developers, QA's, etc. ✅Excellent problem-solving and analytical skills. ✅Strong work ethic and attention to detail. ✅Ability to learn quickly and adapt to new technologies. ✅Regular meetings on project status/ updates. ✅Scrum, Kanban, Agile, Jira, Jenkins, Experience. ✅Degree in the Computer Science field. I have used Git for version control for efficient collaboration, code versioning, branching, and merging. I also used platforms like GitHub, GitLab, and Bitbucket to provide additional collaboration features. I am fluent in English and possess excellent written and verbal communication skills. PS- As a full-stack Web & Mobile developer, I believe in complete transparency. My pricing is clear and upfront, no hidden fees, no surprise costs. I stand by my work with a portfolio of verified client reviews on Upwork that reflect consistent, honest delivery. When you're choosing a developer, trust and clarity should come standard, and that's exactly what I offer. Let's connect.

Hi, I’m Arjun 👋 — a full-stack web developer with 10+ years of experience helping startups and enterprises like Moneygram, Wipro and Mable. I specialize in building robust web applications, dashboards, SaaS products, and real-time systems using the latest in frontend, backend, cloud infrastructure, and AI-powered workflows. From high-impact internal tools to customer-facing platforms with millions of users, I bring a product-focused approach to every build, engineering solutions that are scalable, clean, and built to perform. 🔧 Core Stack & Specialties 🚀 Frontend Development - Angular, Vue.js, React (Next.js), Ionic - Tailwind CSS for modern, responsive UI - Electron.js for desktop and web hybrid apps - Server-Side Rendering (SSR) & Incremental Static Regeneration (ISR) 🔧 Backend & API Engineering - Node.js with TypeScript, NestJS, Express - RESTful and GraphQL APIs - Microservices architecture 🤖 AI & Smart Features - Integration with GPT-4, Claude 3, LangChain, Pinecone - Embedding search and Retrieval-Augmented Generation (RAG) workflows - AI chat interfaces and prompt engineering - MCP system creation ⚡ Real-Time & Cross-Platform Systems - Real-time communication with Socket.io and WebRTC - Event streaming and messaging via Kafka and RabbitMQ 🗄️ Databases & Data Management - PostgreSQL, MongoDB, Firebase, MySQL - AWS Dynamo DB ☁️ Cloud & DevOps - Cloud platforms: AWS, Vercel, DigitalOcean - Containerization with Docker - CI/CD pipelines using GitHub Actions ✨ Why Teams Work With Me - Proven experience delivering scalable apps used by millions - Product-first mindset with clean architecture and best practices - Hands-on with practical AI integrations (search, summarization, chatbots) - Fluent in async communication and remote team collaboration - End-to-end ownership across frontend, backend, and infra If you’re building a modern web product or integrating AI into your platform, let’s connect—I’d love to help you bring it to life.

If your .NET project is stalled or your cloud bill keeps climbing, you're in the right place. I'm a full-stack developer with 12+ years of experience building SaaS platforms, fintech systems, and enterprise applications using .NET, Angular, React, Azure, and modern cloud technologies. $90K+ earned on Upwork, 100% Job Success, Top Rated Plus. I've migrated legacy .NET systems to modern architectures and cut infrastructure costs by up to 30% along the way. What I build: - ASP.NET Core web apps and REST APIs - Angular, React.js, TypeScript, Next.js - Blazor and Angular frontends - AI features built into .NET apps using Azure OpenAI and Copilot - SaaS platforms and enterprise dashboards - Legacy modernization from .NET Framework to .NET Core - DevOps pipelines on GitHub Actions, Azure DevOps, Docker I use AI-assisted workflows (Claude Code, Cursor, agentic tooling) to debug faster and ship sooner, without cutting corners on code quality. I work across fintech, SaaS, e-commerce, logistics, and healthcare. Send me your requirements and I'll suggest the cleanest technical approach.

Full-stack/Backend-heavy engineer. I build and stabilize NestJS/Node APIs, rescue legacy PHP (Yii2/Symfony) codebases, and turn fragile or AI-generated prototypes into reliable production systems - focusing on performance, reliability, and clean delivery with CI/CD + Docker. Angular development for large apps (performance, components, state) I can help you with: • NestJS/Node backend & APIs - auth, integrations, queues, PostgreSQL, performance tuning • Legacy PHP rescue (Yii2/Symfony/Laravel) - bugfixes, new features, maintenance, refactoring, performance/security improvements (migration to TypeScript only if it makes sense) • CI/CD + Docker - GitHub Actions/Bitbucket pipelines, reliable deployments, AWS/GCP (build/release automation, reproducible environments) • Angular or React and Nextjs for large apps - performance, components, state management, integration with APIs • REST API, PostgreSQL, SQL optimization • Audit and refactor code produced by AI tools • Prototype to production hardening (AI-assisted code included) How I work: audit, plan, and regular updates. Core expertise: • Backend: NestJS, Node.js, TypeScript • APIs & Data: REST API, PostgreSQL, SQL optimization • Delivery: DevOps, Docker, CI/CD (GitHub Actions, Bitbucket Pipelines) • Cloud: AWS (EC2, S3), GCP (Cloud Run, Cloud Build) • Legacy: PHP (Yii2, Symfony) • Messaging: RabbitMQ, Kafka • Frontend: Angular, React, NextJs

Senior .NET Full-Stack Developer with 8+ years of experience building SaaS platforms, ERP systems, REST APIs, AI-powered applications, and enterprise software used by thousands of users. I help businesses launch scalable, secure, and cloud-ready solutions using ASP.NET Core, C#, Azure, React, Angular, and modern AI technologies. My expertise spans ASP.NET Core, .NET 8/9, C#, microservices, cloud infrastructure, enterprise integrations, and modern frontend frameworks including React, Angular, Blazor, and Next.js. I have successfully delivered scalable applications ranging from fintech and logistics platforms to healthcare, eCommerce, AI-powered SaaS products, and enterprise workflow systems. In addition to backend and frontend engineering, I have strong experience integrating AI-powered solutions into enterprise applications, including intelligent chatbots, recommendation engines, predictive analytics, workflow automation, computer vision, and AI-assisted decision systems. I have worked with AI integrations, automation frameworks, and cloud AI services to improve operational efficiency and user engagement. Languages C#, ASP.NET Core, .NET Framework, .NET 8/9, TypeScript, JavaScript (ES6+), SQL, T-SQL, Python, HTML5, CSS3, Dart, JSON Frontend Technologies React.js, Next.js, Angular, Blazor, Razor Pages, MVC, Bootstrap, Tailwind CSS, Material UI, Shadcn/UI, jQuery Backend & Frameworks ASP.NET Core MVC, ASP.NET Web API, Entity Framework Core, LINQ, SignalR, MediatR, Dapper, Minimal APIs, gRPC, MassTransit, RabbitMQ, Hangfire, Quartz.NET, Node.js, Express.js, NestJS Cloud, DevOps & Infrastructure Microsoft Azure, Azure DevOps, AWS Services, Docker, Kubernetes, GitHub Actions, Firebase, Cloud Functions, IIS, Nginx, CDN & Security Platforms Databases & Storage Microsoft SQL Server, PostgreSQL, MySQL, MongoDB, Redis, DynamoDB, SQLite, Firebase Firestore, Elasticsearch, Cloud Storage Solutions Integrations & APIs Payment Gateways, Logistics APIs, Shipping Integrations, GPS & Fleet Tracking Systems, ERP/CRM Integrations, Marketplace APIs, Communication Platforms, AI Services, Authentication Providers, Real-time Notification Systems Tools & Platforms Visual Studio, VS Code, Git, GitHub, Bitbucket, Jira, Postman, Swagger/OpenAPI, Docker Desktop, Azure Portal, Firebase Console Architecture & Methodologies Microservices Architecture, Clean Architecture, Domain-Driven Design (DDD), CQRS, Event-Driven Architecture, SOLID Principles, MVC, MVVM, Agile, Scrum, Kanban Core Expertise • Enterprise SaaS Platforms • Fintech & Payment Applications • Logistics & Transportation Management Systems • Fleet Management & Real-time Tracking • eCommerce & Marketplace Solutions • Healthcare & Telemedicine Platforms • AI-Powered Applications • CRM / ERP Systems • Booking & On-demand Platforms • IoT & Device Integrations • Warehouse & Inventory Management • Multi-tenant Applications • Secure API Development • Cloud-native Applications • Real-time Applications & Notifications AI development: • OpenAI API • GPT-4o • RAG • Vector Databases • AI Agents • LangChain • MCP • Cursor AI • Workflow Automation • AI Chatbots

Hi, I am a professional Full Stack Web Developer well versed in Angular (19/18/17/16/15/14/13/12/11/10/9/8/7/2+), .NET Framework (4.5/4.0/3/0/2.0), Asp.net Core(2.0/2.2) ASP.NET MVC 5.0/4.0/3.0, C#, Web API, ASP.NET Web Forms, WCF, XML, JSON , Azure hosting. I have experience in developing Mid to Large scale applications in Domains like - Healthcare, IoT, Real estate, Edtech, Marketplace, Retail, Business Automation, Inventory, CRM,ERP, SaaS based applications etc. Angular Proficiency Highlights: - Developed scalable and maintainable web applications using Angular's component-based architecture. - Strong command of TypeScript, ensuring type-safe and clean code structure across projects. - Streamlined development processes with expert-level use of the Angular CLI for scaffolding and configuration. - Created dynamic and user-friendly forms using both reactive and template-driven approaches with built-in validation. - Implemented efficient routing and navigation strategies, including lazy loading for improved performance. - Wrote comprehensive unit tests to ensure reliability and maintainability of components and services. - Designed responsive, modern UIs using Angular Material with adherence to accessibility standards. - Applied state management patterns via Angular services for organized data flow and component interaction. - Practiced collaborative development using Git, maintaining clean commit history and effective branching strategies. - Resolved complex issues through structured debugging techniques and performance tuning. - Focused on performance optimization, reducing load times and improving rendering efficiency. - Worked closely with cross-functional teams, demonstrating strong communication and problem-solving skills. AI-Augmented Development for Enhanced Productivity and Code Quality: - Make strategic use of AI-based tools like GitHub Copilot, CodiumAI, and Tabnine to streamline the development process. - Speed up the creation of foundational code, such as repetitive logic and API templates. - Rely on AI insights to suggest cleaner, more efficient coding patterns and design structures. - Catch potential issues early through proactive code analysis and intelligent recommendations. - Ensure long-term code health by maintaining clarity, security, and scalability. - Apply these tools thoughtfully-enhancing productivity without losing control over code quality. I have experience in implementing custom software solutions (implementation from scratch / maintaining and enhancing the systems) , rewriting off the shelf solutions , converting legacy applications to modern tech. THIRD PARTY INTEGRATIONS:- ✅Stripe ✅Braintree ✅Paypal ✅AmazonPay ✅Authorize.net ✅OpenTok/WebRTC ✅Twiliio ✅AmazonChime ✅DocuSign ✅Google Maps API ✅TaxJar ✅Google Calendar API ✅Amazon Web API ✅Ebay API 💼 Recent Projects: - All-in-one powersports dealership software with lead management, e-signing, and integrated lending/insurance - plus a lending portal with FinTech APIs and a Chrome extension for auto deal data sync. - An IoT-based Energy Management System with real-time monitoring of 2,500+ power meter points, featuring role-based dashboards, reports, and interactive charts on energy usage, carbon footprint, peak hours, and cost. - Built Chrome/Safari extensions, affiliate bots, custom PDF generators, and calculators for an affiliate tech platform partnered with 7,500+ major online retailers and startups. 𝐂𝐨𝐦𝐩𝐥𝐞𝐭𝐞 𝐥𝐢𝐬𝐭 𝐨𝐟 𝐬𝐤𝐢𝐥𝐥𝐬: JavaScript, Frontend Development, Web Development, AngularJS, Angular 20, Angular 19, Angular 18, Software Development, Angular 16, HTML 5, CSS 3, PSD to HTML, Figma, Programming, Angular 9, Angular 10, Databases, Agile Methodologies, Software Development Life Cycle (SDLC), Angular 17, ASP.NET, .Net Core, C#, ASP.NET MVC I'm open to discussing your project and recommending the most efficient and scalable solutions tailored to your needs. Let's connect!