Vadym K.

I’m a Full Stack Developer with 𝟴+ 𝘆𝗲𝗮𝗿𝘀 of experience and 𝟯𝟱+ 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝘀 in production, from fintech to defense. Backed by a senior team, I can cover any role or technology your project needs. 📣 Let’s discuss your project right now, and I’ll help you clarify requirements! With 8+ years of experience and 35+ products in production across fintech, healthtech, energy, industrial, maritime, defense, real estate, asset management, e-commerce, and SaaS. I build web applications, backend systems, RESTful APIs, desktop applications, and internal platforms on ASP.NET Core and Microsoft Azure that handle real production load. I own delivery end-to-end, from database design to deployment, release, and new features after launch. 𝗣𝗥𝗢𝗩𝗘𝗡 𝗕𝗨𝗦𝗜𝗡𝗘𝗦𝗦 𝗜𝗠𝗣𝗔𝗖𝗧 ✅ 35% faster order processing and near-zero packing errors: as a Full Stack Developer, I built an e-commerce fulfillment platform with barcode scanning, inventory management, and multi-carrier shipping API integration ✅ 70% less manual reporting after I rebuilt a legacy asset management system for enterprise & defense clients as a .NET Developer (ASP.NET MVC, SQL, Entity Framework) with real-time tracking ✅ 60-80% faster query execution through Microsoft SQL Server & PostgreSQL optimization on reporting-heavy systems ✅ Up to 50% shorter release cycles with an ASP.NET Core microservices architecture on Microsoft Azure and automated CI/CD pipelines ✅ 10+ hours saved per week by a SaaS fleet & asset management system I delivered as a Full Stack Developer (.NET Core, Angular) with automated reporting ✅ Hours of manual processing removed per case on a lending & compliance platform (ASP.NET Core, Azure SQL, Azure Key Vault) with CRM, pricing, and compliance API integrations ✅ Centralized labor-cost tracking in a B2B SaaS suite (time tracking, project management, CRM) with approval workflows, analytics, and AI-assisted insights 𝗙𝗨𝗟𝗟-𝗦𝗧𝗔𝗖𝗞 & 𝗦𝗔𝗔𝗦 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 Frontend: React, Angular, Next.js, and jQuery interfaces with HTML5 and CSS, including real-time monitoring dashboards for industrial hardware that replaced delayed manual checks Backend: ASP.NET Core Web API, microservices, Node.js, PHP, and Java services built on clean software design SaaS applications: as a Full Stack Developer, I build multi-tenant B2B platforms with approval workflows, role-based access, and analytics AI integration: as a .NET Developer, I add OpenAI / Azure OpenAI features like smart search, summarization, and workflow automation to existing systems when they bring real value 𝗟𝗘𝗚𝗔𝗖𝗬 𝗠𝗢𝗗𝗘𝗥𝗡𝗜𝗭𝗔𝗧𝗜𝗢𝗡 Undocumented code and daily production fires? As a .NET Developer, I migrate .NET Framework and ASP.NET MVC systems to ASP.NET Core and Azure, then stabilize them with code review, sprint planning, better navigation, and responsive design across devices. 𝗗𝗢𝗠𝗔𝗜𝗡 𝗦𝗣𝗘𝗖𝗜𝗔𝗟𝗧𝗜𝗘𝗦 FinTech: lending, compliance, CRM-integrated workflows Asset & Fleet Management: tracking, reporting, sensitive operational data E-commerce: fulfillment, inventory, shipping integrations Industrial & Energy: real-time monitoring, data visualization HealthTech, Real Estate, Defense, Enterprise Workplace Platforms 𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞 ✅ Backend: C#, .NET, ASP.NET Core, ASP.NET, ASP.NET MVC, ASP.NET Web API, .NET Framework, Java, Python, Node.js, PHP ✅ Frontend: Angular, React, Next.js, TypeScript, JavaScript, jQuery, HTML5, CSS, SCSS ✅ Database: Microsoft SQL Server, SQL, PostgreSQL, Entity Framework Core ✅ Cloud & DevOps: Microsoft Azure, Azure SQL, Azure Key Vault, Docker, Microservices, CI/CD, Git ✅ Other: Web Development, Desktop Application, Software Design, RESTful APIs, API Integration, AI Integration, Agile, Clean Architecture, SOLID ⚡ 𝗪𝗛𝗔𝗧 𝗜 𝗖𝗔𝗡 𝗕𝗨𝗜𝗟𝗗 𝗙𝗢𝗥 𝗬𝗢𝗨 As a Full Stack Developer, I can take on: Custom web development and SaaS MVP development, from idea to launch CRM systems, internal business tools, admin panels, and dashboards RESTful API development and third-party API integration (CRM, shipping, compliance) Windows desktop applications, where I work as a .NET Developer end-to-end Database design, SQL query optimization, and data migration Cloud migration to Microsoft Azure, Docker containerization, and CI/CD setup Code review, refactoring, and performance optimization of existing .NET apps Software architecture and technical consulting for startups and enterprise teams 🤝 𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗖𝗢𝗠𝗘 𝗕𝗔𝗖𝗞 I’m a Full Stack Developer who asks the right questions before writing the first line of code, flags problems early, and keeps projects moving even when requirements shift. I also work with a reliable team, so we can cover any role on your project as long-term partners. 📩 Whether you need a Full Stack Developer, .NET Developer, ASP.NET Core developer, .NET backend developer, or Azure developer for a long-term project, I’m ready to help. Feel free to invite me to an interview!