I’m a .NET Developer with 6+ years of experience in creating high-quality Windows and web apps. Key Skills: ASP.NET Core (5-8), MVC, Web Forms WPF, Windows Forms HTML5, CSS3, Bootstrap, JavaScript, jQuery API Integration, Kendo UI, Telerik I focus on performance tuning and optimizing database queries. With solid expertise in client-side technologies and frameworks like WPF, MVVM, and XAML, I’m committed to delivering efficient, scalable solutions. Clear communication is my priority. I ensure clients are always updated on progress. Let’s connect to discuss how I can help your next project!

Over the last 10 years, I have developed websites using C#/.NET, ASP.NET, ASP.NET MVC, MySQL, MS SQL PostgreSQL, ReactJs. My core competency lies in helping make reliable and future-proof applications. Skills Front-end: * JavaScript - 10 years * ReactJS - 6 year * HTML - 10 years * CSS3 - 10 years Back-end: * C# - 10 years * .NET Framework - 10 years * .NET Core - 7 year * WPF - 2 years * Entity Framework - 7 years Databases: * MS SQL - 10 years * MySQL - 4 years * PostgreSQL - 1 year * Redis - 4 years * MongoDB - 1 year

Hello, I’m Raj Narayan Gupta, a Full Stack Developer with more than five years of experience in designing and developing modern web applications. I build fast, secure, and scalable solutions using .NET technologies and cloud platforms like Azure and AWS. I have a strong command over C#, ASP.NET Core, Blazor, and React, and I enjoy working on both backend and frontend parts of a project. My approach focuses on writing clean, maintainable code, optimizing performance, and ensuring smooth deployment through modern DevOps practices. Core Skills and Expertise ASP.NET Core MVC, Razor Pages, Blazor Microservices, CQRS, Repository Pattern, SignalR, RabbitMQ RESTful API development and third-party integrations React.js, TypeScript, JavaScript (ES6+), and responsive UI design SQL Server, MySQL, Entity Framework Core Azure App Services, AWS Elastic Beanstalk, Dokploy, CloudPanel, S3, and CI/CD pipelines What I Can Help You With Building new web applications from the ground up Refactoring or upgrading existing .NET projects Designing and integrating REST APIs Implementing authentication and authorization (JWT, OAuth, Identity) Database design, optimization, and migration Fixing bugs, improving performance, and maintaining reliability Why Work With Me I have a solid understanding of .NET architecture and full-stack development, allowing me to deliver solutions that are both scalable and efficient. My work is guided by attention to detail, clear communication, and a focus on client satisfaction. I’m comfortable collaborating in agile environments and taking ownership of complete project lifecycles. If you’re looking for a developer who understands business goals as well as technology, I’d be happy to help you bring your project to life. Let’s discuss how we can work together to build something great.

Top-Rated Plus Agency Manager | AI & Digital Solutions Leader| With 17+ years of agency excellence, I don’t just manage projects, I turn ideas into scalable digital products. As a Top-Rated Plus professional, I specialise in delivering high-impact web, mobile, and AI-powered solutions that help businesses innovate, optimize, and grow. At Kindlebit Solutions, I lead from the front — managing teams, aligning client vision with technical execution, and ensuring every project is delivered with precision, clarity, and measurable results. My role goes beyond coordination; I take ownership of outcomes and client success. 💡 Strategic Advantage My core strength is translating business vision into intelligent, high-performing digital systems. I work closely with clients to understand their: 1. Business challenges 2. Product strategy 3. Market positioning 4. Technical and operational needs I then convert these insights into clear, execution-ready roadmaps for AI, design, and development teams. Outcomes: ✔ Aligned stakeholders ✔ Accelerated delivery ✔ Reduced risk ✔ Optimized ROI ✔ Enterprise-grade quality 🚀 AI-Driven Project Leadership For the past 2+ years, I have led AI and Azure initiatives, delivering intelligent solutions that enhance decision-making, automation, and scalability. My leadership covers: 🔹 AI solution architecture & deployment 🔹 Azure cloud implementation 🔹 Intelligent automation systems 🔹 Predictive analytics & data platforms 🔹 Custom AI-powered applications 📊 End-to-End Delivery Excellence I have successfully planned and executed 10+ full-cycle digital products, managing: 🔹 Requirements & system design 🔹 UX coordination & wireframing 🔹 Technical documentation 🔹 Development governance 🔹 QA leadership & compliance 🔹 Final delivery & stakeholder approval My focus remains consistent: Delivering intelligent, scalable, and future-ready solutions — on time and with precision.

🚀 Senior Full-Stack Developer | AI-First Engineering | Angular, React, .NET Core | Azure & GCP I'm a **Senior Full-Stack Developer** with **15+ years of experience** building secure, scalable, and high-performance web applications using **Angular, React, .NET Core, Azure, Google Cloud Platform (GCP), and modern cloud technologies**. My approach is **AI-First Development**—leveraging the latest AI coding platforms to accelerate software delivery while applying senior engineering expertise to ensure production-ready quality, security, scalability, and maintainability. ## 🤖 AI-First Development Expertise I build software using advanced AI development workflows powered by: * Claude (Opus/Sonnet) * OpenAI Codex & ChatGPT * Google Gemini * GitHub Copilot * Advanced prompt engineering & multi-model AI workflows * AI-assisted architecture, coding, debugging, refactoring, testing, documentation, and code reviews By combining AI with 15+ years of engineering experience, I consistently deliver projects **up to 10× faster** while maintaining clean architecture and production-quality code. ## 💻 Core Expertise ### Backend * .NET Core & ASP.NET Core * REST APIs & Microservices * SQL Server, PostgreSQL & NoSQL databases * Authentication, Authorization & Security * Legacy application modernization ### Frontend & UI Development * Angular & React * **Figma to HTML/CSS** * Pixel-perfect, responsive UI implementation * Responsive & mobile-first development * Component-based architecture * State management & performance optimization * Real-time applications * Cross-browser compatibility ### Cloud, DevOps & Infrastructure **Microsoft Azure** * App Services * Azure Functions * Service Bus * Blob Storage * Key Vault * Application Insights **Google Cloud Platform (GCP)** * Cloud Run * Google Workflows * Cloud Functions * Cloud Storage * Cloud-native application deployment **DevOps** * CI/CD Pipelines * Docker & Containerization * Infrastructure as Code * Monitoring, Logging & Performance Optimization ## Why Clients Hire Me * ✅ 15+ Years of Enterprise & Startup Experience * 🤖 AI-First Development with Claude, Codex, Gemini & leading AI development tools * ⚡ Up to 10× Faster Delivery through AI-Accelerated Engineering * 🎨 Pixel-Perfect Figma to HTML/Angular/React Implementation * ☁️ Azure & Google Cloud (GCP) Expertise * 🔐 Secure, Production-Ready Solutions * 🏗️ Clean Architecture & Scalable Systems * 🤝 Clear Communication & Long-Term Collaboration If you're looking for a senior developer who combines **AI-powered development speed with enterprise-grade engineering**, I can help transform **Figma designs into responsive, production-ready web applications** and build scalable solutions using **Angular, React, .NET Core, Azure, and Google Cloud Platform**.

✅Microsoft Azure Certified ✅𝟏𝟎𝟎% 𝐂𝐮𝐬𝐭𝐨𝐦𝐞𝐫 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐢𝐨𝐧 ✅20+ Projects Delivered Successfully ✅Full Stack Developer having 7+ years of experience I specialize in building scalable, secure, and high-performance .NET backend systems on Microsoft Azure for SaaS startups and growing businesses. Here’s what I deliver: ✔️ Backend APIs & Web Applications (.NET / ASP.NET Core) – scalable, secure, and high-performance RESTful Web APIs and enterprise web applications Ecommerce platforms, AI-powered applications, and business websites, built with clean architecture, SOLID principles, and production-ready standards. ✔️ Azure Cloud & SaaS Infrastructure (Azure App Services, Azure SQL, Functions) – cloud-native deployments, CI/CD pipelines, and scalable SaaS backend systems designed for reliability, observability, and long-term growth. ✔️ Secure API & Identity Systems (JWT, OAuth2, OpenID Connect) – enterprise-grade authentication, role-based access control (RBAC), encryption, and Zero Trust security architecture. ✔️ Database & Performance Optimization (SQL Server, EF Core, Dapper) – optimized queries, indexing strategies, and high-load performance tuning to ensure stable and efficient backend systems. ✔️ System Modernization & Integration (Dynamics 365, Third-Party APIs) – legacy .NET upgrades, CRM integration, payment gateway connectivity, and secure API integrations built for scalability. ⭐ Recent Client Feedback: “Sadeed is highly knowledgeable and handled a very difficult issue smoothly and efficiently.” “I wholeheartedly recommend Sadeed Ullah Khan — he was fully committed and delivered the project on time.” Let’s schedule a complimentary consultation to review your requirements and outline a clear, structured approach for your project.

🌟5+ Years of Experience in .NET & Angular(Web & Desktop) I am a passionate Full-Stack Web Developer with a proven track record of delivering scalable, secure, and innovative software solutions for businesses worldwide. With 5+ years of experience (including collaborations with a leading German medical company in pathology), I specialize in aligning technology with business goals to deliver measurable results. Whether you're a startup looking to launch your MVP or an enterprise upgrading your existing platform, I can help turn your vision into reality. 🔑 MY KEY EXPERTISE ✔ Full-Stack Development with a specialization in .NET and Angular ✔ Bug Fixing and Performance Optimization for large-scale applications ✔ API Development and Integration (RESTful APIs, OAuth, JWT) ✔ Secure Role-Based Authentication and Scalable Solutions ✔ Deployment, Testing, and Debugging across various environments 🛠 My Tech Stack 🔹 Frontend: Angular, JavaScript, jQuery, Bootstrap, HTML5/CSS3 🔹 Backend: .NET Core, C#, Web API, WCF, SignalR Core 🔹 Database: SQL Server, MySQL, PostgreSQL 🔹 Tools: JIRA, Azure DevOps, GitHub, Visual Studio Team Services 🔹 Authentication: OAuth, JWT, Identity Framework 🏆 Why Work With Me? Proven Success: Delivered a large-scale platform for a leading German healthcare company, ensuring compliance with stringent medical standards and improving operational efficiency. Industry Experience: Healthcare, SaaS, CRM, Real Estate, HRM, Banking, Telecommunications, and more. Client-Centric Approach: I focus on understanding your unique business requirements to craft tailor-made solutions. Agile & Efficient: I use Agile methodologies to ensure timely delivery and adaptability to project needs. 💼 My Service Offerings ✔ Custom Software Development (Web & Enterprise Applications) ✔ API Development and Documentation (Swagger, OpenAPI) ✔ Database Design and Optimization for Performance ✔ Real-Time Applications (SignalR Core, WebSockets) ✔ Front-End Development (Responsive & Accessible Designs) ✔ Secure Authentication and Role-Based Authorization Systems 💡 What Sets Me Apart? I follow best practices in software engineering to ensure: ✔ Clean Code (SOLID, DRY, KISS Principles) ✔ Scalable Architectures (Layered, DDD, Microservices) ✔ Maintainability (Middleware, Modular Components) ✔ Optimized Performance (SQL tuning, Efficient Algorithms) 📈 Client Success Stories 🌟 "Saad demonstrated exceptional expertise in .NET development while working on our ERP auditing project. His in-depth knowledge of the .NET framework and ERP systems enabled him to identify and address critical issues efficiently. He showed a keen eye for detail, ensuring seamless integration and accurate reporting. His dedication, problem-solving skills, and collaborative approach made him a valuable asset to our team. Saad consistently delivered high-quality solutions, meeting deadlines and exceeding expectations. I highly recommend Saad for any .NET development project, especially those involving ERP systems and auditing. His expertise will undoubtedly enhance your project's success.!" 🌟 "I hired Saad for the development of medical scheduling software to help with some core feature development, integrations and refactoring to a clean codebase and Saad did a wonderful job. He's disciplined, passionate and most importantly loves the work he do, always willing to take on challenging tasks, learn them and come back with great results. Highly recommended for awesome Software teams." 🚀 Let's Collaborate! I am dedicated to helping businesses achieve their goals by crafting software solutions that are secure, scalable, and aligned with their vision. Whether you need a quick bug fix, a complex API, or a full-fledged enterprise application, I am here to help. 💬 Ready to start your next big project? Let’s connect and make it happen! Best Regards, Saad Ur Rehman

I have 17 years of experience as a full stack developer, as well as a devops engineer for 2 years. My experience includes desktop applications, client/server, ASP.NET Forms/MVC, Angular SPA, Web Services SOAP/REST, and integration services. I am passionate about what I do, I strive to write clean maintainable code that is easily extensible. I can work alone or as part of a team, so I am happy to work with any existing freelancers you have. My hours of availability are flexible to meet your needs.

Senior DevOps Engineer and Solution Architect delivering measurable results on AWS and Azure: 40% lower infrastructure costs, 80% faster deployment velocity, and 99.99% uptime on production workloads. I design and automate scalable cloud platforms using .NET Core, Kubernetes, Terraform, and modern CI/CD pipelines. I partner with companies to transform fragmented codebases into high-performance systems, from initial architecture through global rollout, focused on outcomes that move the bottom line, not just clean code. Cloud Infrastructure & Cost Optimization (AWS, Azure) • Engineered a GitOps-driven AWS pipeline with Terraform, reducing infrastructure provisioning time by 80% • Reduced Amazon EC2 costs by 35% through intelligent auto-scaling and instance optimization • Architected a serverless AWS + Amazon S3 solution processing 10M+ daily requests at 99.99% uptime • Built a high-throughput event streaming architecture with Docker and Apache Kafka, handling 5TB of daily data ingestion without latency spikes .NET Development & Application Architecture • Re-platformed a legacy monolith into .NET Core microservices on Kubernetes, cutting rollback windows by 70% • Designed a multi-tenant ASP.NET Core + React application supporting 200,000+ concurrent users • Developed custom C# middleware that optimized high-volume API traffic, reducing database load by 25% • Migrated a critical financial system to the latest ASP.NET version, cutting technical debt by 60% and improving API response times by 200ms CI/CD, DevOps Automation & Linux Administration • Built robust CI/CD pipelines in Azure DevOps and GitLab, tripling release frequency on key products • Automated compliance audits using Python and Terraform, saving 90% of manual audit prep time • Orchestrated a Linux System Administration overhaul, hardening network security across 500+ EC2 instances Security, Compliance & Data • Implemented a Zero-Trust security mesh across Azure and AWS, preventing lateral movement attacks on sensitive fintech data • Delivered PostgreSQL-backed APIs with full HIPAA and PCI-DSS compliance for a leading healthcare provider Core Skills: AWS, Microsoft Azure, DevOps, Solution Architecture, Cloud Engineering, .NET Core, ASP.NET, C#, JavaScript, React, Full Stack Development, Kubernetes, Docker, Terraform, GitOps, CI/CD, Azure DevOps, GitLab, Apache Kafka, PostgreSQL, Amazon S3, Amazon EC2, Linux System Administration, Python, Microservices, Serverless, Zero-Trust Security, HIPAA, PCI-DSS, Deployment Automation, Cloud Migration. Let's schedule a call to map your objectives to a clear technical roadmap.

To obtain a challenging position in the IT sector with a progressive organization that will fully utilize my talents and technical skills and help me reach higher echelons. Efficient, hardworking, energetic and result oriented professional with more than 10 years of experience in ASP.NET Web Forms, MVC, .NET CORE, Web API, Android and IOS development including both native and hybrid, Angular, React. Have also worked on some automated programs using python. Having ability to handle servers like AWS, Azure etc.