Abhay K.

𝐒𝐞𝐧𝐢𝐨𝐫 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 .𝐍𝐄𝐓 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐂# | 𝐀𝐒𝐏.𝐍𝐄𝐓 𝐂𝐨𝐫𝐞 | I’m a Senior Full-Stack .NET Developer with 10+ years of experience designing, developing, modernizing, and scaling enterprise-grade web applications, SaaS platforms, APIs, and cloud-native solutions. My core expertise spans C#, .NET, ASP.NET Core, Web APIs, Entity Framework, React, Angular, Azure, AWS, SQL Server, PostgreSQL, and MySQL, with a strong focus on clean architecture, scalable system design, performance, security, and maintainable production code. I work effectively across the entire development lifecycle — from architecture and database design to API development, frontend engineering, cloud deployment, CI/CD, testing, and production optimization. ⚙️ .NET & Enterprise Application Development ✅ C#, .NET 6/7/8/9, .NET Core, .NET Framework ✅ ASP.NET Core, ASP.NET MVC, ASP.NET Web Forms ✅ Entity Framework & Entity Framework Core ✅ Dapper and high-performance data access ✅ Enterprise application architecture and modernization ✅ Modular, reusable, and maintainable application components ✅ SaaS architecture and multi-tenant application development ✅ Design Patterns, SOLID principles, Clean Architecture 🔗 Backend, API & Distributed Systems ✅ RESTful API design and development ✅ ASP.NET Web API and secure API architectures ✅ Microservices and distributed application architecture ✅ Node.js, Express.js, NestJS ✅ Authentication, authorization, RBAC, and API security ✅ MVC with Razor Views and VB.NET ✅ Third-party API and enterprise system integrations ✅ Performance optimization and scalable backend architecture 🖥️ Frontend Engineering ✅ React.js, Next.js, Redux, Flux ✅ Angular 6–18 ✅ TypeScript, JavaScript, jQuery ✅ HTML5, CSS3, Sass/SCSS, Bootstrap ✅ Material UI, Styled Components, Framer Motion ✅ Reactive Forms and component-driven UI development ✅ Responsive, reusable, and high-performance interfaces ☁️ Cloud, DevOps & Infrastructure Microsoft Azure ✅ Azure App Services, Azure Functions, Azure DevOps ✅ Azure Pipelines and CI/CD automation ✅ Azure VMs, Kubernetes, and cloud deployment ✅ Azure SQL Database, Cosmos DB, and MySQL AWS ✅ EC2, S3, Lambda, DynamoDB ✅ SNS, SES, Elasticsearch, CloudWatch ✅ Secrets Manager, DocumentDB, ElastiCache, IAM ✅ Cloud-based application deployment and integration 🗄️ Database & Data Engineering ✅ Microsoft SQL Server ✅ MySQL ✅ PostgreSQL ✅ MongoDB ✅ Firebase ✅ Cosmos DB ✅ Database architecture, optimization, indexing, and query performance ✅ Data modeling and high-volume transactional systems 🚀 DevOps & Version Control ✅ Git, GitHub, GitLab, Bitbucket ✅ CI/CD pipeline architecture and implementation ✅ Azure DevOps and AWS DevOps services ✅ Automated build, deployment, and release workflows ✅ Environment configuration and production deployment 💳 Payments & Enterprise Integrations ✅ Stripe, PayPal, Braintree, CCAvenue ✅ DocuSign ✅ SendGrid, Mailchimp, Twilio ✅ Amadeus, Sabre, Traveltek, Priceline ✅ REST/SOAP APIs and third-party platform integrations 🧪 Testing & Quality Engineering ✅ MSTest, NUnit, JUnit ✅ Selenium and Cypress ✅ Unit, integration, API, and regression testing ✅ Testable architecture and automated quality checks ✅ Production-focused code quality and reliability Why Clients Work With Me ✅ Engineering-First Approach — I focus on architecture, maintainability, performance, and long-term scalability rather than simply delivering features. ✅ Production-Ready Development — I build robust solutions designed to operate reliably in real-world production environments. ✅ Full-Stack Ownership — From database and backend architecture to frontend, cloud infrastructure, CI/CD, and integrations, I can own the complete development lifecycle. ✅ Scalable Architecture — I develop reusable components and modular SaaS architectures that help teams accelerate delivery while reducing long-term development and maintenance costs. ✅ Clear Communication — I provide structured updates, communicate technical decisions clearly, and collaborate closely with existing development teams and stakeholders. Build, Modernize & Scale Your Product Whether you are building a new SaaS product, modernizing a legacy .NET application, developing enterprise APIs, migrating workloads to Azure/AWS, or scaling an existing platform, I can help architect and deliver a production-ready solution. I bring a combination of senior .NET expertise, full-stack engineering, cloud architecture, and enterprise application development to help turn complex requirements into scalable software. Let’s build a reliable, maintainable, and scalable product that is ready for long-term growth.