I help businesses transform complex ideas into powerful, secure, and scalable digital products that drive real growth. With over a decade of hands-on experience, I specialize in building high-performance enterprise applications and modern SaaS platforms using .NET, ASP.NET Core, Azure, and React. From accelerating time-to-market to creating bulletproof architectures that scale effortlessly, I deliver solutions that don’t just work they perform exceptionally well under pressure. 🚀 What I Bring to the Table Backend Mastery ✔️ASP.NET Core, C#, .NET Framework & .NET 8 ✔️High-performance REST APIs & Microservices ✔️Clean Architecture, Domain-Driven Design ✔️Secure Authentication (JWT, OAuth2, OpenID) ✔️Scalable, maintainable, and future-proof systems Frontend Expertise ✔️Blazor, .NET MAUI, ReactJS, Next.js ✔️Modern, responsive, and delightful user interfaces ✔️Legacy modernization (jQuery → modern stack) Databases & Performance ✔️SQL Server, PostgreSQL, Azure SQL, MongoDB ✔️Advanced query optimization & database architecture ✔️Data modeling for high-traffic applications Cloud & DevOps ✔️Microsoft Azure (expert), AWS & GCP ✔️Docker, Kubernetes, CI/CD pipelines ✔️Performance monitoring, logging & reliability 🌟 Domains I Excel In ✔️Healthcare Applications ✔️SaaS Platforms ✔️E-commerce & Marketing Technology ✔️SEO & Automation Platforms 💼 Services I Offer ✔️End-to-end SaaS Product Development (MVP to Scale) ✔️Enterprise Web Applications with rock-solid architecture ✔️API Development & Third-Party Integrations ✔️Cloud Migration, Optimization & Cost Reduction ✔️Legacy System Modernization ✔️Ongoing Maintenance, Enhancements & Technical Partnership Why Clients Love Working With Me ✔️Deep technical expertise combined with strong business understanding ✔️Clean, well-documented, and maintainable code ✔️Exceptional communication & fast turnaround ✔️On-time delivery with premium quality ✔️Long-term mindset I treat your product like my own @I’m not just a developer I’m a trusted technical partner who takes full ownership from concept to production and beyond. Whether you need a new SaaS platform, want to modernize existing systems, or are looking for a reliable .NET expert who can also integrate AI capabilities, I’d love to discuss how we can create something outstanding together. ✔️Ready when you are. Let’s build something great! 🚀

Are you looking for a reliable full-stack developer who can turn your ideas into powerful, scalable software? Don’t look around, you are at a perfect place. I specialize in developing modern, high-performance applications using C#, ASP.NET Core, Angular, React, and SQL Server, helping businesses streamline operations and grow faster. With a strong focus on clean architecture, performance optimization, and user experience, I deliver solutions that are not just functional but future-ready. I’m highly expert in developing end-to-end full-stack applications with a strong emphasis on maintainability, scalability, and security. My backend expertise in .NET Core allows me to build powerful APIs and microservices, while my frontend experience with Angular and React ensures intuitive, responsive, and engaging user interfaces. From database design and SQL performance optimization to cloud deployment on Azure and AWS, I deliver complete solutions tailored to your business needs. I also implement modern DevOps practices, including CI/CD pipelines and containerization, ensuring faster development cycles and reliable deployments. My Core Expertise: ✔ Full-Stack Web Development ✔ API Development & Integration ✔ Microservices Architecture ✔ Frontend Development ✔ Database Design & Optimization ✔ Cloud Solutions (Azure & AWS) ✔ DevOps: Git, Docker, CI/CD Pipelines ✔ Enterprise Application Development ✔ DevOps & CI/CD ✔ Legacy System Modernization ✔ Blazor & Modern Web Technologies Additional Services • Custom Web Applications • Desktop Application Development • Blazor Applications • API Integration & Automation • Website Performance Optimization • Responsive UI/UX Development • Smart Contract Integration (Blockchain-based solutions) Technical & Professional Skills • UI/UX Design Principles • Agile & Scrum Methodologies • Clean Code & Scalable Architecture • Performance Optimization • Version Control (Git) • Containerization (Docker) ✅ Why Choose Me? ✔ Clean, maintainable, and scalable code ✔ Fast communication & on-time delivery ✔ Business-focused solutions not just code ✔ Strong problem-solving and analytical skills ✔ Long-term support and collaboration I take pride in building long-term partnerships by delivering high-quality work, maintaining transparency, and continuously improving the products I develop. Let’s Work Together Have a project in mind? Click “Invite” or “Hire Now” and let’s build a high-quality solution that drives real results for your business.

⭐⭐⭐⭐⭐🎖 ✅ 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 ✅ 𝟔,𝟎𝟎𝟎+ 𝐇𝐨𝐮𝐫𝐬 𝐖𝐨𝐫𝐤𝐞𝐝 ✅ 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 ✅ 𝟏𝟎𝟎% 𝐂𝐥𝐢𝐞𝐧𝐭 𝐑𝐞𝐜𝐨𝐦𝐦𝐞𝐧𝐝𝐚𝐭𝐢𝐨𝐧 With over 13+ years of hands-on experience in Full-Stack Development, I specialize in crafting robust solutions using C#, ASP.NET MVC, .NET Core, and Angular. I've successfully delivered scalable APIs, integrated cloud solutions on Azure, and implemented complex databases, including SQL and MongoDB. My area of expertise includes the following: 📌 Skills: ✅ C#, .NET Framework / Core ✅ ASP.NET / MVC / Web API / REST API ✅ Angular 6 to 15 ✅ ASP.NET Zero Framework, AspNet Boilerplate ✅ Angular, NodeJS API, MongoDB ✅ HTML / CSS / Bootstrap 3-4-5 📌 ORM Tools: ✅ Entity Framework / LINQ 📌 Database: ✅ SQL (MSSQL, MySQL) / SQLite / MongoDB 📌 Cloud-Based Services: ✅ Windows Azure 📌 3rd Party Controls: ✅ DevExpress / DevExtream / Telerik 📌 Reporting: ✅ SSRS / Power BI 📌 Others: ✅ Jira / Trello / Git / TFS / BitBucket / GitLab / GitHub. What you can expect from me: - ========================= ✔️ 100% Job success guarantee ✔️ Excellent Communication ✔️ Quality Code ✔️ Availability as per your time zone I am available to discuss new interesting projects and get started. Let's discuss it!

I help businesses build scalable SaaS platforms, modernize legacy applications, and integrate AI into real-world workflows. 💻 With 15+ years of software engineering experience, I’ve worked with startups, universities, and established companies to deliver reliable, enterprise-grade solutions using .NET, React, Angular, Python, Azure, and AWS. 📈 By the Numbers ⏱️ 15+ Years Experience 💰 $100K+ Earned on Upwork 🕒 10K+ Hours Worked 🏆 Top Rated Freelancer 🤝 17 Successful Upwork Contracts 🚀 20+ Commercial Projects Delivered 🛠️ What I Specialize In 🚀 Full-Stack SaaS Development ▪️ .NET Core / ASP.NET Core ▪️ React & Angular ▪️ SQL Server & Entity Framework ▪️ REST & GraphQL APIs ▪️ Clean Architecture & Microservices ▪️ Scalable Enterprise Applications 🤖 AI & Generative AI Solutions ▪️ OpenAI / ChatGPT Integration ▪️ Retrieval-Augmented Generation (RAG) Pipelines ▪️ LangChain Workflows ▪️ LangGraph, CrewAI & AG2 Multi-Agent Systems ▪️ Vector Databases (Pinecone, Chroma, Qdrant) ▪️ Document Intelligence & AI Automation Solutions ☁️ Cloud & DevOps ▪️ Microsoft Azure & AWS ▪️ Docker & Kubernetes ▪️ GitHub Actions & Azure DevOps ▪️ CI/CD Pipeline Automation ▪️ Cloud-Native Architecture ▪️ Monitoring, Deployment & Scalability Optimization 🔗 Integrations & APIs ▪️ Third-Party API Integrations ▪️ Payment Gateway Integration ▪️ Analytics & Reporting Systems ▪️ Authentication & Authorization (OAuth, JWT, SSO) ▪️ Enterprise System Integration 🏗️ Architecture & Engineering ▪️ SOLID Principles & Design Patterns ▪️ Dependency Injection & Repository Pattern ▪️ Performance Optimization & Refactoring ▪️ Legacy Application Modernization ▪️ Testable & Maintainable Codebases 💬 𝐖𝐡𝐚𝐭 𝐌𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐒𝐚𝐲 "Mostafizur is extremely professional, cooperative, and creative. He’s thorough, detail-oriented, and suggests smart improvements. Highly recommended for full-stack development." "Excellent work, very responsive." "Highly recommend – was a great engineering resource for over 5 years." 📩 Let’s connect and discuss your project!

I help businesses build fast, maintainable enterprise applications using .NET Core, C#, Angular, and MERN stack — delivering clean microservices architecture that scales without breaking. With 9+ years of hands-on experience, I've shipped production systems across multiple industries covering the full stack: from ASP.NET Core Web APIs and C# microservices on the backend, to Angular Material and Node.js on the front, backed by SQL Server, MySQL, and AWS. ✅ What I build: → ASP.NET Core & ASP.NET MVC applications with RESTful and Web API layers → C# microservices with event-driven design (RabbitMQ, Azure Service Bus) → Real-time features using SignalR and WebSockets → Angular & MERN stack SPAs with clean component architecture → API integrations — third-party services, payment gateways, data pipelines → Authentication & authorization (OAuth2, JWT, Identity Server) → CI/CD via Azure DevOps, GitHub Actions, and Docker on AWS ✅ Why clients hire me: With 44 completed jobs and a 100% Job Success Score, I bring the reliability of a senior engineer with the communication of a product partner. I write clean, well-documented code, flag risks early, and deliver what's scoped — not more chaos. I work well with: • Startups building their first API or SaaS product • Teams extending existing .NET / Angular/ React codebases • Clients who need a developer who understands business goals, not just tickets 📦 Stack at a glance: Backend: .NET Core, C#, ASP.NET MVC, Web API, Microservices, Node.js, WPF,OpenAI Frontend: Angular, TypeScript, JavaScript, Angular Material, React Database: SQL Server, MySQL, Entity Framework, LINQ Cloud/DevOps: AWS, S3, Azure, Blob Storage, DevOps, Docker, GitHub Other: SignalR, Firebase, Python, Data Extraction, REST, API Integration Background jobs: Windows Services, Cron job, Azure Functions If you need a reliable senior developer who can own the architecture and ship it, let's talk.

💻 **C# | .NET Core | ASP.NET MVC/Web API | Azure DevOps| SQL | Crystal Reports | Graph QL | Full-Stack Developer** Are you looking for a developer who can **bring your ideas to life** with clean, efficient, and scalable code? I’m **Sharjeel Najam**, a seasoned **.NET Developer** with **5+ years of professional experience** building real-world applications and solving business challenges through technology. From designing robust backends to creating insightful reporting systems, I specialize in turning complex requirements into seamless user experiences and powerful backend logic — using the full Microsoft tech stack and beyond. ## 🧩 What I Do Best: 🔹 **.NET Development:** Skilled in building and maintaining applications using **.NET Core**, **C#**, and **ASP.NET MVC**. Whether it’s a full system from scratch or maintaining/refactoring legacy code, I deliver clean and maintainable solutions. 🔹 **Web Applications & APIs:** I design secure and scalable **Razor Pages** apps and **RESTful APIs** using **ASP.NET Core**, with strong integration and database handling capabilities. 🔹 **Database Design & Optimization:** Efficient with **MS SQL Server** and **MySQL** — from writing complex queries to optimizing database structure, indexing, and stored procedures for speed and reliability. 🔹 **Reports & Dashboards:** I build **Crystal Reports** and **RDLC Reports** for clients who need accurate, professional business reporting integrated with their applications or databases. 🔹 **Frontend Development:** Experienced with **Blazor**, **Angular**, **JavaScript**, and **jQuery**, I create responsive, interactive frontends that work across modern browsers and devices. 🔹 **Troubleshooting & Debugging:** I’m great at digging into messy code and finding what’s broken. I clean up legacy applications and make them faster, safer, and easier to maintain. ## 🛠️ Tools & Technologies I Use: **Languages & Frameworks:** ✔️ C#, .NET Core, ASP.NET MVC, Razor Pages, Web API, Blazor ✔️ JavaScript, jQuery, Angular **Database & ORM:** ✔️ Microsoft SQL Server, MySQL ✔️ Entity Framework, LINQ **Reporting Tools:** ✔️ Crystal Reports, RDLC Reports **Development Tools:** ✔️ Visual Studio, Git, GitHub, Bitbucket ✔️ Postman, Swagger, SSMS **Architecture & Principles:** ✔️ OOP, SOLID, Design Patterns (Repository, Factory, Singleton) ✔️ Clean Code, Separation of Concerns, Reusability ## 🚀 What Makes Me a Great Fit: ✔️ I **understand your business needs**, not just your tech stack. ✔️ I build solutions that are **scalable, easy to maintain, and perform well**. ✔️ I **communicate clearly**, update regularly, and deliver on time. ✔️ I write code that others can read, understand, and build upon. ✔️ I bring **a problem-solving mindset** to every challenge. Whether you’re a startup needing a full-stack developer, a company optimizing internal tools, or a client with a legacy system in need of support — I bring both the **technical knowledge and professionalism** to move your project forward. ## 🧠 Past Project Highlights: 🔸 Designed a full-stack inventory management system using .NET Core, Razor Pages, and SQL Server 🔸 Migrated and optimized legacy systems to .NET Core with performance and security enhancements 🔸 Developed custom Crystal Reports and RDLC dashboards for financial and operational analytics 🔸 Built secure REST APIs to connect mobile apps with backend services 🔸 Implemented complex business logic in ERP-like systems for sales, purchases, and reporting ## ✅ Let's Work Together When you hire me, you’re getting more than just a coder — you're getting a **solution-oriented partner** who genuinely wants your project to succeed. 📩 **Send me a message** today and let’s discuss how I can help turn your project into a long-term success.

I help startups and businesses ship reliable, scalable .NET systems — from Azure Functions and Microservices to high-performance SQL Server backends. Do you need Azure Functions built right, Microservices that actually scale, or SQL Server performance that stops bottlenecking your app? I deliver production-grade .NET solutions with clean, maintainable architecture on time and to spec. With 8+ years in .NET development, I specialize in serverless Azure Functions, distributed Microservices, and high-performance SQL Server systems built on ASP.NET Core and Clean Architecture principles. CORE EXPERTISE: - Azure Functions: event-driven serverless APIs, triggers, durable workflows, API integrations - Microservices Architecture: domain-driven design, service decomposition, Azure-hosted services - SQL Server: schema design, query optimization, EF Core, stored procedures, indexing strategies - ASP.NET Core .NET 8: REST APIs, Web APIs, MVC, SignalR real-time communication - Clean Architecture: CQRS, Repository Pattern, Dependency Injection, testable code structure - Azure DevOps: CI/CD pipelines, containerization with Docker, cloud deployments - Frontend: Angular and React frontends integrated with .NET backends - Third-party integrations: FedEx, UPS, OpenAI, Twilio, PayPal RECENT PROJECTS: - Large-scale full-stack ERP on .NET Core, Angular, and React Native (5-star, $5,000+ contract) - Multi-tenant SaaS platform for Danish organizations built on ASP.NET Core (Skulebridge) - B2B industrial marketplace on .NET 8 Microservices with Azure, FedEx and UPS integrations - Azure Functions and REST API integration projects with clean architecture patterns - OpenAI and Azure OpenAI integrations into .NET production applications I write clean, maintainable code and communicate clearly at every stage. Open to fixed-price projects, hourly contracts, and long-term retainer arrangements.

12+ years of experience as a .Net Developer, .NET Core, .NET MAUI, Python, Angular, AWS & Azure. I build scalable platforms, integrate GPT-4/OpenAI, and deliver cloud-based solutions with clean, reliable code. Hello! I'm Keyur Narkhi, a highly skilled and experienced full-stack developer specializing in .NET Development, Angular, Python, AWS glue, AWS and Azure technologies. With a passion for crafting efficient and scalable solutions, I help clients bring their ideas to life and deliver exceptional results. My technical expertise lies in developing robust and user-friendly web applications using the Microsoft .NET framework, python and Angular framework. I have extensive experience in creating responsive and intuitive front-end interfaces that provide a seamless user experience. Additionally, I excel in designing and implementing secure and scalable back-end architectures. I am well-versed in project management methodologies and can help you effectively plan, execute, and deliver your projects. With excellent communication skills, I ensure that I understand your requirements thoroughly and maintain clear and open lines of communication throughout the project lifecycle. If you're looking for a reliable, results-oriented developer with strong project management skills, I'm here to help. Let's discuss your requirements and create innovative solutions together. Sounds knowledge of Open API/Chatgpt API integration. Get in touch, and let's get started!

I’m a Senior Full Stack Developer with over 9 years of experience delivering scalable, high-performance web applications and AI-powered solutions across multiple domains. My expertise spans Node.js, Next.js, Angular, React, and JavaScript/TypeScript, with a strong foundation in backend architecture, API integrations, and cloud-based deployments. On the backend, I specialize in .Net, .Net Core, Node.js, Express, and Prisma ORM with databases like PostgreSQL and MongoDB, building efficient, maintainable, and secure services that adhere to modern coding standards and best practices. I’m deeply focused on AI integrations, connecting intelligent systems through OpenAI, Google Cloud AI, and other ML-driven APIs to enhance automation, personalization, and decision-making workflows. I take pride in writing clean, testable, and production-grade code, maintaining strong version control with GitHub, managing agile sprints via JIRA, and collaborating seamlessly with cross-functional teams. My approach emphasizes scalability, modular architecture, CI/CD readiness, and end-to-end delivery excellence — from concept to deployment. Whether building interactive Next.js dashboards, Angular enterprise applications, or real-time React interfaces, I ensure every project aligns with performance, security, and long-term maintainability standards. Core Skills: Languages: JavaScript, TypeScript, SQL Frontend: React, Next.js, Angular, HTML5, CSS3 Backend: Node.js, Express, Nest.js, .NET, .Net Core Databases: PostgreSQL, MongoDB, Prisma ORM AI & Automation: OpenAI API, Google Cloud AI, workflow automation Tools: GitHub, Jira, Postman, Docker, AWS, CI/CD pipelines Practices: Clean Code, SOLID Principles, Scalable Architecture, Agile & Scrum

🚀 Passionate Developer & Architect with a Proven Track Record 🌟 Total Professional Experience: 8 + Years 👨‍🎓 Education & Expertise: Master's Degree in Computer Applications from Chandigarh University with an outstanding 89% marks. -----------------------Expertise----------------------- 🏅 ASP.NET CORE, ASP.NET MVC, ASP.NET Web Form 🏅 JavaScript, TypeScript, NodeJS, Express, Nest.JS 🏅 Angular, React, Vue.JS 🏅 MSSQL, MySQL, PostgreSQL 🏅 Azure, AWS 🏅 Solidworks API SDK Integration Expertise: 🖥️ System Programming: 8 years Experience C# , VB.NET 🌐 Web Technologies: .NET: 🌐 8 + years Experience , Web forms, MVC, .NET CORE, Web API, Entity framework LINQ, Code first and Database First Approach HTML, Java Script, jQuery, Ajax, CSS, Angular - 🅰️ 7+ years Experience React - ⚛️4 years Experience Blazor - 🅱️1 year Experience ☁️ Cloud Computing: 8 years Experience 🚀AWS: Hosting RDS , EC2 S3 bucket SSL Certificate Restore DB Snapshots AWS CLI 🔵Azure : CI/CD Functions App Service Bus Service Fabric Application Insights 🐳Docker: 5+ years Experience 💳 Payment Gateway: 8 years Experience Implemented Stripe payment gateway and PayPal Recurring payments. 🛢️ DBMS SQL Server: 8 years Experience Expert in database design and architecture. I possess the skills to strategically structure databases, ensuring optimal performance, scalability, and efficiency. RDMS Stored Procedures SQL Profiler Complex Queries in SQL