Hire the Best .NET Core Developers in Prague, CZ

After several years focused on direct, long-term client relationships outside UpWork, I'm back and actively taking on new projects. I've been building production web software for 25+ years, the last several as an independent developer working directly with startups, small businesses, and larger organizations including government agencies. I work end to end: architecture, backend (ASP.NET Core, C#, Node.js), and frontend (Angular, Next.js, Vue.js, TypeScript), so you get one person who owns the whole project instead of a hand-off between specialists. I'm also experienced integrating AI into real products (OpenAI, Anthropic, Dialogflow, Alexa) and comfortable using AI-assisted development to move faster, while equally capable of delivering without it if that's a requirement on your project. Past work includes CzechTourism, Stora Enso (a China-facing e-marketplace spanning three continents), Boston Logan International Airport, and Radio Free Europe/Radio Liberty, among others. I'd rather solve the actual problem than just tick off features, happy to talk through your project before we start.

Hello there! I'm Mahesh, I am a Full-stack developer having more than 5+ years of experience in building websites and web applications. I have worked to build sites from scratch OR to create additional features for existing ones. I am always on the lookout for exciting projects to work on and smart people to collaborate with! I have sound knowledge of the following technologies: ✓ Frontend: JavaScript, React JS + Next JS, Vite JS + Redux, TypeScript, .NetCore, .Net ASP5 ✓ Design: Tailwind CSS, MUI, SASS, Custom CSS ✓ Backend: Nodejs(express), Python ✓ Database: MongoDB, MySQL, PostgreSQL, Firebase, Django ✓ AWS, GoogleCloud, Firebase Functions ✓ Github, GitLab, Bitbucket, and other project management tools ✓ Trello, Jira, Asana I am considering work not only as a way to make a living. but also to build a career here at Upwork. So I tend to seek a long-standing relationship rather than just a quick benefit. Thanks for reading my profile. Looking forward to hearing back from you. Best Regards, Mahesh Kumar

Most developers build things. I fix them. When something breaks and nobody knows why, that's where I come in. I find the problem, fix it and you're back in business. 💥App crashing or acting weird - crashes for no reason, works differently on different devices, broken on mobile or some browsers, behaves strangely after an update. 💥App running slow - pages take forever to load, simple actions hang for too long, dashboards and reports are slow and painful to use. 💥Integration not working - app can't connect to another system, API stopped working after an update, two systems that simply won't talk to each other. 💥Vibe coded or can't deploy - AI-generated app nobody understands anymore, works locally but not on the server, agency left broken code behind and disappeared. 💥Old system - needs to move to a new platform, the company that built it is gone, old code nobody wants to touch but still needs new features. 💥Developer disappeared - left no documentation, nobody understands what is going on, project is stuck and nobody knows what to do next. 💥Security problems - app was hacked, serious security issues hiding in the code, private data got out and you need it fixed now. Sound familiar? I do not disappear. I do not hand you off to a junior. You get me, 20 years of experience, Expert-Vetted status and 100% Job Success. Every time. Not sure if I can help? Just tell me what is on fire. I will take a look and give you a straight answer. No "sugarcoating". Let's talk. ⚡ Programming Languages JavaScript, TypeScript, C#, Python, PHP, Java, PowerShell, Bash/Shell, VBA, C++, C, Assembly, HTML, CSS, SASS/SCSS ⚡ Application Frameworks Angular, React, Next.js, Vue.js, Node.js, .NET, ASP.NET, Gatsby, Express.js, Laravel, Remix, Astro, Svelte, Blazor, Electron, AG Grid ⚡ Databases SQL, MongoDB, MySQL, Microsoft SQL Server, PostgreSQL, Oracle, SQLite, Redis, Elasticsearch, Firebase Firestore, MariaDB, Microsoft Access ⚡ API REST API, GraphQL, WebSockets, gRPC, SOAP, OpenAPI/Swagger, WebHooks, SSE, JSON-RPC, XML-RPC, OData, API Gateway, tRPC, SignalR, CORS ⚡ Cloud Platforms Google Cloud Platform, Microsoft Azure, Amazon Web Services, Firebase, Vercel, Netlify, Supabase ⚡ DevOps Docker, Kubernetes, Jenkins, GitLab CI/CD, GitHub Actions, TeamCity, Nexus, Nginx, IIS, Terraform, Helm, Bitbucket Pipelines, Azure DevOps, OpenShift, Grafana, Chef ⚡ CSS Frameworks Tailwind CSS, Bootstrap, Material UI, Angular Material, HeadlessUI ⚡ Mobile Frameworks React Native, Apache Cordova, Capacitor by Ionic, Expo, Ionic ⚡ Testing Frameworks Playwright, Jest, Karma, Vitest, Jasmine, Cypress, Selenium, xUnit, NUnit, MSTest, Puppeteer, WebdriverIO, Storybook ⚡ Authorization OAuth, JWT, Auth0, Firebase Authentication, Passport.js, NextAuth.js, Azure AD, SAML, OpenID Connect, LDAP, Microsoft Identity Platform, AWS Cognito, Supabase Auth ⚡ Database Frameworks Entity Framework, Prisma, Mongoose ⚡ Logging ELK Stack, Log4net, NLog, Serilog, Logstash ⚡ Integrations Stripe API, Google Maps API, Firebase API, GitHub API, GitLab API, n8n, Apache Kafka ⚡ Architecture Microservices, Monolithic, Event-driven, Serverless, Headless, MVC, MVVM, Domain-Driven Design (DDD), CQRS, SOA, Dependency Injection (DI), Inversion of Control (IoC), SOLID principles, Design Patterns (GoF) ⚡ AI Tools GitHub Copilot, GitHub Copilot CLI, Claude, Claude Code, Gemini, Gemini CLI, Ollama, ChatGPT, Codex ⚡ Machine Learning PyTorch, TensorFlow, Keras, Scikit-learn, Pandas, NumPy, Jupyter Notebook, Kaggle, Hugging Face ⚡ Code Quality ESLint, Prettier, SonarQube, StyleLint, TSLint, ReSharper, StyleCop, Roslyn Analyzers, Pylint ⚡ Package Managers npm, yarn, pnpm, NuGet, pip, Homebrew, Maven, Gradle, UV, apt, yum, Chocolatey, winget ⚡ IDEs VS Code, Visual Studio, IntelliJ IDEA, PyCharm, Vim, Xcode ⚡ Operating Systems Windows, Linux, macOS, Android, iOS

𝗖𝗧𝗢 & 𝗖𝗼-𝗳𝗼𝘂𝗻𝗱𝗲𝗿 𝗮𝘁 𝗖𝗜𝗚𝗲𝗻. ⭐ 𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁 𝗚𝗼𝗹𝗱 𝗣𝗮𝗿𝘁𝗻𝗲𝗿. 🔐𝗔𝘇𝘂𝗿𝗲 𝗰𝗹𝗼𝘂𝗱 𝗺𝗼𝗱𝗲𝗿𝗻𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗰𝘂𝘀𝘁𝗼𝗺 𝘀𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁. ⌛𝟮𝟬+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲. 🚀 𝗦𝗰𝗮𝗹𝗶𝗻𝗴 𝘀𝘁𝗮𝗿𝘁𝘂𝗽𝘀, 𝗦𝗠𝗕𝘀, 𝗲𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲𝘀. 𝟲𝟬+ 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗮𝗿𝗼𝘂𝗻𝗱 𝘁𝗵𝗲 𝘄𝗼𝗿𝗹𝗱. 🗣️ 𝗣𝗮𝘀𝘀𝗶𝗼𝗻𝗮𝘁𝗲 𝗮𝗯𝗼𝘂𝘁 𝗾𝘂𝗮𝗹𝗶𝘁𝘆 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗼𝗻-𝘁𝗶𝗺𝗲 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘆. As a seasoned software architect with over 2 decades of professional experience, I enjoy helping startups and enterprises enhance and scale businesses. Backed by a rich technical background and problem-solving skills, I implement automation/management solutions using modern .NET technologies. My team and I support our clients through a full SDLC: starting with R&D, requirements analysis and UI/UX design, and following by development, QA, and maintenance stages. Looking for trusted outsourcing or outstaffing services? I am always a message away and ready to consult.🤝 P.S. We can start with a small PoC or MVP project to validate your idea and save time and money, or we can proceed with modernizing your existing software. Don’t hesitate to reach out and let’s discuss how we can help your business grow! Our core Tech Stack: - .NET Core, NodeJS (MEAN and MERN) - iOS/Android (Xamarin Forms & Native, Swift/Kotlin) - Umbraco, EpiServer, Sitecore (.NET based CMS & E-Commerce solutions) - Python, Scala, Spark, Cassandra, ML.NET, TensorFlow, Elasticsearch (data science & big data solutions) - RabbitMQ, Kafka/Kafka Streams (open-source/free message-brokers, integration & stream-processing platforms) - Microsoft Azure, AWS, Google Cloud (cloud services & infrastructure) - Kubernetes, ELK, Prometheus + Grafana (deployment, logs & monitoring) - Raspberry, Arduino, Azure IoT Kit (IoT solutions) - Azure DevOps, TeamCity (CI & CD processes)

Hello! I'm a Senior ASP.Net Full-Stack Developer from Prague. My career as a developer started in 2002 during my study in the university. Since that time I checked roles of developer, team lead, architect and even project manager. I used to work in such world known companies as Monster.com or Barclays, had chance to participate in big enterprise project development using best practices. My main focus was always put on Microsoft .Net and related technologies but for several years I'm also using Angular. Besides web development, I have experience with desktop development for Windows using WPF. Together with my colleague we founded a company named Stantum s.r.o., and an agency here on Upwork. With its help we're able to take care about mid-size projects requiring a team. And here is a short list of technologies I have experience with: • OOP and System Design, UML • Design patterns - those from Gang of Four and from Martin Fowler • Asynchronous and multithreading development using TPL • Rest API design, architecture, implementation and integration • WCF and WebServices • GIT (github, bitbucket), TFS, Perforce, SVN and CVS version control systems • .NET / .NET Core C# • TypeScript • JavaScript • HTML, CSS/LESS/SASS • JSON, XML, XSLT, Serialization/Deserialization • ASP.NET MVC / Web API • ASP.NET Core • Angular 5 - 9 • React (beginner) • Bootstrap, Angular Materials • Email integration (custom SMTP) • SignalR • Microsoft Azure (Azure SQL, Azure AD, Azure Storage, Application Insights) • Entity Framework - DB-first, code-first and model-first approaches • NHibernate • LINQ and Dynamic LINQ • Database architecture and optimization: Microsoft SQL/T-SQL, Oracle, Postgres, MySQL • .NET Desktop - WinForms, WPF, UWP • Prism, MVVM Light • Telerik and DevExress frameworks for WinForms and WPF • T4 templates - reach code-generation experience • Test frameworks - NUnit, XUnit I love programming and know how to create successful projects, both green field and based on existing code.