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I help businesses build scalable, high‑performance, and maintainable web applications using .NET, ASP.NET Core, Angular, and Azure. With 10+ years of experience in full‑stack development, backend architecture, REST API development, and cloud deployment, I focus on delivering solutions that are clean, reliable, and built for long‑term growth. My core expertise includes: - .NET and ASP.NET Core development - Angular front‑end development - RESTful API design and integration - Azure cloud services and deployment - SQL Server database design and optimization - Legacy system modernization - SaaS and enterprise application development I have worked on enterprise web applications, microservice‑based solutions, and performance‑focused systems where scalability, security, and maintainability matter most. If you need a Senior .NET Full Stack Developer who understands both technical execution and business impact, I can help turn your requirements into a solid product.

𝐁𝐨𝐨𝐬𝐭 𝐘𝐨𝐮𝐫 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐰𝐢𝐭𝐡 𝐄𝐱𝐩𝐞𝐫𝐭 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 I’m 𝐏𝐫𝐢𝐲𝐚𝐧𝐤𝐚 𝐁𝐡𝐚𝐯𝐬𝐚𝐫, a dedicated and versatile Full-Stack Developer with extensive experience in both front-end and back-end development. With a passion for writing clean, efficient code and solving complex problems, I specialize in building robust, scalable applications using the latest technologies. Over the years, I have successfully delivered projects across diverse sectors including healthcare, education, e-commerce, and real estate, tailoring solutions that meet specific business needs and drive growth. My technical expertise spans a wide range of programming languages and frameworks, enabling me to handle 𝐟𝐮𝐥𝐥 𝐥𝐢𝐟𝐞𝐜𝐲𝐜𝐥𝐞 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭—𝐟𝐫𝐨𝐦 𝐢𝐧𝐢𝐭𝐢𝐚𝐥 𝐝𝐞𝐬𝐢𝐠𝐧 𝐚𝐧𝐝 𝐩𝐫𝐨𝐭𝐨𝐭𝐲𝐩𝐢𝐧𝐠 𝐭𝐨 𝐝𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 𝐚𝐧𝐝 𝐦𝐚𝐢𝐧𝐭𝐞𝐧𝐚𝐧𝐜𝐞. 𝐌𝐘 𝐂𝐎𝐑𝐄 𝐓𝐄𝐂𝐇𝐍𝐈𝐂𝐀𝐋 𝐒𝐊𝐈𝐋𝐋𝐒 𝐈𝐍𝐂𝐋𝐔𝐃𝐄: ➤ 𝗕𝗮𝗰𝗸-𝗘𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: ASP.NET, MVC, .NET Core, C#, Web API, Node.js ➤ 𝗙𝗿𝗼𝗻𝘁-𝗘𝗻𝗱 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: React.js, Angular (all versions), AngularJS, HTML5, CSS3, JavaScript, jQuery, Bootstrap, Sass ➤ 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: MySQL, Firebase, MongoDB, Cassandra, NoSQL, Azure SQL ➤ 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀: AWS Cloud Architecture, Serverless, Docker, Webpack ➤ 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗠𝗲𝘁𝗵𝗼𝗱𝗼𝗹𝗼𝗴𝗶𝗲𝘀: Agile and Waterfall I bring strong expertise in integrating cloud solutions and DevOps best practices, ensuring smooth deployment pipelines and scalable infrastructure. Whether working on greenfield projects or enhancing legacy systems, I prioritize maintainability, security, and performance. 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲? ➤ I combine deep technical skills with a user-focused approach to build engaging and intuitive applications. ➤ I communicate clearly and work collaboratively to ensure project milestones are met on time and within budget. ➤ I stay up-to-date with emerging technologies to provide modern, future-proof solutions that add real business value. I’m excited about the possibility of partnering with you to turn your 𝗶𝗱𝗲𝗮𝘀 𝗶𝗻𝘁𝗼 𝗿𝗲𝗮𝗹𝗶𝘁𝘆. Whether you need a powerful web app, a mobile solution, or cloud-based architecture, I’m ready to deliver. 𝗟𝗲𝘁'𝘀 𝗰𝗼𝗻𝗻𝗲𝗰𝘁 𝗮𝗻𝗱 𝗱𝗶𝘀𝗰𝘂𝘀𝘀!

Senior ASP.NET / C# Full-Stack Developer with 11 years of professional experience. Technical Lead and Team Lead on enterprise projects across 7 business domains. Managing teams of 5-10+ developers. Mentoring junior, middle, and senior engineers. SKILLS: ASP.NET & C# -- 9+ years with ASP.NET MVC, ASP.NET Core, Web API, .NET Framework, .NET Core, Entity Framework Full-Stack -- C#/.NET backend + Angular (2 yr), React/Redux (2 yr), jQuery (4 yr). TypeScript, JavaScript, HTML, CSS, SASS/SCSS, NgRx, Angular Material Databases -- SQL Server, MySQL, PostgreSQL, CosmosDB, Redis, MongoDB. Performance tuning, stored procedures, index optimization, database structure design Cloud & DevOps -- Azure (3 yr), AWS (1 yr), GCP (1 yr), Docker, Kubernetes, CI/CD, Azure DevOps, Bamboo, PowerShell Architecture -- Monolithic (6 yr) and Microservices (3 yr). Distributed transactions with MassTransit, RabbitMQ, database-per-service, shared database Leadership -- Scrum ceremonies, code reviews, sprint planning, backlog management, team performance evaluation Real-Time -- SignalR, WebSocket, ServiceBus for live notifications and messaging Security & Quality -- OAuth 2.0, JWT, Fortify scanning, penetration testing remediation, performance/load/stress testing Monitoring -- DataDog dashboards, AppDynamics, production metrics and performance reports DOMAINS: Social networking, warehouse logistics/supply chain, healthcare, commodity trading, employee feedback/HR, business management/franchises, government compliance, asset/operational management CERTIFICATIONS: Azure Fundamentals, MCSD App Builder, MCSA Web Applications, Exam 487 (Azure/Web Services), Exam 486 (ASP.NET MVC), Exam 480 (HTML5/JS/CSS3) EDUCATION: Master's in Computer Science -- WORKING STYLE: Experienced with Scrum and Kanban. Strong technical documentation skills. Skilled in communicating directly with product owners and customers. Work well both independently and in teams. Full SDLC participation. Prioritize writing efficient, maintainable code with focus on privacy and security.

Most developers write code. I build systems that don’t break when your business grows. I help businesses build scalable SaaS applications and multi-tenant systems using ASP.NET Core — designed for performance, security, and long-term stability. When your .NET project needs to work — and keep working — I’m the developer you bring in. With 10+ years of experience in the Microsoft ecosystem, I specialize in designing and building complex systems where architecture matters as much as code. My core expertise: Multi-tenant SaaS applications (secure tenant isolation, scalable architecture) ERP / LMS / business management systems Custom authentication & role-based authorization systems ASP.NET Core migrations and performance optimization I build: Scalable web apps using ASP.NET Core, Blazor, and MVC Secure REST APIs and third-party integrations Cloud-ready applications with clean architecture Full-stack solutions when needed (Blazor WASM, Blazor Server) Stack: ASP.NET Core, C#, Entity Framework, SQL Server, My Sql, PostgreSQL, Azure, AWS, Docker I’ve completed 70+ projects on Upwork with a 100% Job Success Score, mostly involving complex systems and long-term client relationships. If you’re building a serious product and need it done right — let’s talk. I’m happy to review your requirements and suggest the best approach before we start.

✅ Available Now ✅ 7+ years of Experience Helping businesses build, improve, and integrate .NET applications is what I do every day. I specialize in ASP.NET, ASP.NET Core, C#, ASP.NET MVC, SQL Server, REST APIs, and custom business applications, with hands-on experience in Acumatica customizations, Acumatica integrations. ✅ Web & API Development ASP.NET Core, ASP.NET MVC, Web API, REST API, C#, .NET 8, Entity Framework Core, Dapper, LINQ, SQL Server, PostgreSQL, Angular, Blazor, Razor Pages, Dependency Injection, Repository Pattern, JWT, OAuth2, Windows Authentication, Bootstrap ✅ Cloud & Integrations Azure, Docker, API Integration, OpenAI API, Azure Cognitive Services, Google OAuth2, GA4 Reporting API, Firebase, Airtable REST API ✅ Mobile & Desktop .NET MAUI, WPF, WinForms, Blazor Hybrid, Razor Class Library ✅ Acumatica ERP DAC Extensions, Graph Extensions, PXSelect, PXAction, Generic Inquiries, AR Aging Reports, Freight Cost Customization, Stock Items screen with custom Packaging tab and child grid. Modern UI and Classic UI compatible. ✅ Tech Stack ASP.NET Core · ASP.NET MVC · Web API · C# · .NET 8 · SQL Server · PostgreSQL · Entity Framework Core · Dapper · LINQ · Angular · Blazor · .NET MAUI · WPF · Azure · Docker · OpenAI · Firebase · Acumatica ERP ✅ NEXT STEP If your project involves ASP.NET MVC, ASP.NET Core, .NET Core , Acumatica Customization or Acumatica Integration, React, Azure, Blazor, Angular, .NET Maui requirements then send me a quick message with what you're trying to build I’ll review it and share the best way forward. -Abdul Kareem Core Keywords: Acumatica ERP Developer, ASP.NET Core Developer, ASP.NET MVC Developer, C# Developer, .NET Core Developer, SQL Server Developer, REST API Developer, Azure Developer, .NET MAUI Developer, Enterprise Application Developer, SaaS Application Developer, Third-Party Integration Specialist.

If you need a senior developer who takes full ownership of your project from architecture to deployment, you're in the right place. I'm a Full-Stack .NET and Angular Developer with 7+ years of professional experience building enterprise-grade web applications for clients in the UK, USA, Japan, and Pakistan. I am AWS Certified Solutions Architect (Associate) and currently working as a Senior Software Engineer at Intagleo Systems, delivering solutions for UK and USA-based product companies. I have built and shipped real systems, a digital signage platform serving thousands of users globally, a World Bank–sponsored government e-procurement system, a cross-platform education management system for a Japan-based NGO, and enterprise ERP and asset management systems for multiple industries. My work is in production, being used by real organizations, every day. What I Specialize In On the backend, I build clean, scalable APIs and services using ASP.NET Core, C#, Web API, and Microservices Architecture. On the frontend, I deliver responsive, maintainable Angular applications. I connect it all with SQL Server, AWS cloud services, and Docker-based deployments with CI/CD pipelines. Backend: ASP.NET Core · ASP.NET MVC · C# · Web API · Microservices · Entity Framework · LINQ Frontend: Angular 2–17 · TypeScript · JavaScript · HTML5 · CSS3 · Bootstrap · Kendo UI Database: Microsoft SQL Server · SAP HANA · PostgreSQL · SQLite · Stored Procedures · Crystal Reports Cloud & DevOps: AWS (EC2, S3, Lambda) · Docker · Redis · CI/CD · Git Selected Projects Signagelive – Digital Signage Platform (UK) Developed and maintained scalable backend services and Angular components for a digital signage platform serving thousands of enterprise users worldwide. Stack: .NET Core · Angular 12 · SQL Server · AWS Creative Realities / Clarity – Digital Experience Platform (USA) Built and maintained full-stack features for a retail and enterprise digital experience platform used across the United States. Stack: .NET Core · .NET MVC · Docker · Redis · Kendo UI · SQL Server BPPRA e-Procurement System – Government of Balochistan Delivered a complete electronic public procurement platform to automate government procurement workflows for the Balochistan government. Stack: .NET MVC · AngularJS · SAP HANA · Crystal Reports PSDP – Public Sector Development Program (World Bank) Built a project planning and monitoring platform for the Government of Balochistan, sponsored by the World Bank. Stack: .NET Core · Angular 8 · Microservices · SQL Server NFEMIS – Education Management System (JICA-AQAL, Japan) Developed a cross-platform education management system for a Japan-funded NGO, including a mobile app, offline support, and a web admin panel. Stack: .NET Core · Angular 6 · Ionic · SQLite · RDLC Reports Industries I Have Worked In Government & Public Sector - Digital Signage & Retail Technology - ERP & Business Automation - Education & NGO Platforms - SaaS & Cloud Applications - Asset & Facility Management What You Can Expect Working With Me Every project starts with understanding your requirements properly not just jumping into code. I communicate clearly, give regular updates, flag issues early, and deliver production-ready work. I don't disappear after delivery. I care about whether the software actually works for your business long-term. Whether you need a new system built from scratch, an existing application modernized to .NET Core, API integrations, cloud deployment on AWS, or ongoing maintenance — I can handle it end to end. If you have a project in mind, let's talk about it.