Hire the Best ADO.NET Specialists
in Serbia

With 23 years of experience building software, I have completed 80+ projects on Upwork with a Top Rated track record. My core stack is C# and .NET — from ASP.NET Core down to legacy .NET Framework 4.8 and ASP.NET Web Forms — paired with Angular and React on the frontend, and SQL Server on the backend. I also work with PostgreSQL and MySQL, using Entity Framework (both EF6 and EF Core) and Dapper depending on the project. Recent focus areas include: Azure & AI integration — Azure OpenAI features embedded into web and desktop applications, plus configuring Microsoft Copilot Studio for multi-agent orchestration and connecting AI agents to business data via Snowflake and MCP connectors. Performance & caching — Redis (including Azure Cache for Redis), T-SQL query plan and index tuning, for applications that need to stay fast under load. Payments & real-time communication — Stripe and PayPal integration, WebRTC for video features, and Twilio for SMS/voice. Healthcare software — I built and run a live medical e-directory platform (Angular/.NET), and spent 3 years at Prime Care Technologies, a U.S. healthcare technology company, so I'm comfortable working in HIPAA-regulated environments and handling protected health information. Desktop & on-prem deployment — WinForms/WPF applications, Windows services, and installers (WiX and Advanced Installer) for self-managed customer deployments. On the frontend I also work with Tailwind CSS, SASS/LESS, and modern build tooling (Webpack/NPM). I use Azure DevOps for source control, so changes are always revertible and progress is measurable. I follow consistent coding standards and document my work clearly so any developer who picks up the project after me can understand it. I work exclusively on hourly, pay-per-time engagements — happy to discuss your project in detail before we start, no obligation. Best regards, Srdjan Mladenovic

I am a .NET Software Developer with extensive experience building modern, scalable web applications and SaaS solutions for clients worldwide. My core expertise lies in ASP.NET Core, C# (.NET 6/7/8), and cloud-based architectures on Microsoft Azure, combined with strong experience in Optimizely (formerly EPiServer) CMS & Commerce platforms. Over the years, I have delivered projects ranging from enterprise-grade e-commerce systems to custom SaaS platforms, with a focus on performance, security, and clean architecture. I bring both technical depth and practical experience in working with international teams and delivering business value. 🔹 Key Skills & Technologies: - Back-End: ASP.NET Core, .NET 6/7/8, Web API, Entity Framework Core - CMS / E-Commerce: Optimizely (EPiServer) CMS & Commerce - Cloud & DevOps: Microsoft Azure (App Services, Functions, Storage, CI/CD), Azure DevOps pipelines - Front-End (working knowledge): Angular, React, TypeScript - Other: REST APIs, SaaS architecture, SQL Server, Git, Agile/Scrum 🔹 What I offer: - Development of scalable SaaS and cloud-based applications - Optimizely CMS & Commerce implementations and customizations - API integrations and backend services in ASP.NET Core - Guidance on modernizing legacy applications into cloud-ready solutions - Clean, maintainable, and testable code with focus on long-term value Currently, I am available for part-time freelance engagements (~20 hours per week), and I am passionate about helping businesses build reliable, future-proof software solutions.

With over 14 years of experience in full stack development, I bring deep expertise in building robust, scalable applications that cover everything from dynamic front-end interfaces to secure, high-performance back-end systems. As a Microsoft Certified Professional, I am skilled in creating end-to-end solutions that enhance user experience and meet the complex needs of modern businesses. Key Areas of Expertise: 🔸 Back-End Development: Extensive experience with .NET frameworks, including ASP.NET Core, .NET MVC, and Web API, for building scalable and reliable server-side applications that power complex business solutions. 🔸 APIs, Databases, and Cloud Integrations: Skilled in designing RESTful and gRPC APIs, with experience working with SQL Server, PostgreSQL, and NoSQL databases like MongoDB. Proficient in cloud platforms, including Microsoft Azure, AWS, and Firebase, for seamless data handling and storage solutions. 🔸 Front-End Development: Skilled in the JavaScript/TypeScript ecosystem, with extensive experience in React (React.js, Next.js, Gatsby.js, Redux), Vue (Vue.js, Nuxt.js), and Angular (Angular, AngularJS, RxJS) for developing responsive, visually engaging, and efficient user interfaces. 🔸 UI Frameworks and Libraries: Proficient in Material UI, Tailwind CSS, Bootstrap, Kendo UI, Ant Design, PrimeVue, Vuetify, and Semantic UI, enabling rapid, responsive, and attractive UI development tailored to user needs. 🔸 Languages and Tools: Proficient in C#, JavaScript, TypeScript, Sass, BEM, HTML5, and CSS3, as well as tools and technologies like Entity Framework, LINQ, Docker, Kubernetes, Yarn, NPM, Vite, Webpack, Jest, and Git to streamline the development process and maintain high standards across both front-end and back-end code. Why Work with Me? 🔸 Proven Track Record: With a strong history of delivering high-quality projects on time and within budget, I ensure reliable solutions that meet the unique requirements of each client. 🔸 Collaborative Approach: I thrive in team environments, effectively communicating and collaborating with cross-functional teams to achieve project goals and deliver cohesive, end-to-end solutions. 🔸 Continuous Learning: Committed to staying updated with the latest advancements in .NET, JavaScript frameworks, and industry trends to provide innovative, efficient solutions. Let’s work together to bring your idea to life!