Ksenia M.

Before any work starts, let's talk about your product: I offer a free 30 minute consultation, no obligation and no pitch. 📅 FREE CONSULTATION - WHAT I COVER 🔹 Your product goal, users and constraints - what you're actually trying to achieve 🔹 The technical problem you're stuck on, and how I'd approach it 🔹 Architecture and stack: what fits your case, and what I'd avoid 🔹 A realistic scope, timeline and cost range 🔹 What I'd build or fix first - and what can wait You leave with a plan you can act on, whether or not you work with me. ✅ HOW I CAN HELP 🧱 You need to build a new application, but don't want to overcomplicate the first version I help turn an idea into a practical MVP by defining the architecture, workflows, database structure, APIs and technology stack before development starts. Then I build the product from the ground up with .NET, React/Angular, SQL and cloud technologies. The goal is to get a working product into users' hands without spending months building features that can wait. 🐢 Your application has become slow, unstable or difficult to maintain I can step into an existing .NET or full-stack app, identify the bottlenecks and fix the underlying problems. This can include backend performance, database queries, API architecture, business logic, background processes and app structure. Instead of adding another workaround, I focus on fixing what is causing the problem. ♻️ Your legacy app is holding back new development I modernize .NET, ASP.NET, desktop and older frontend applications without automatically throwing away everything that already works. That can mean: • .NET Framework → .NET 8 / modern .NET • ASP.NET → ASP.NET Core • ASP.NET MVC → ASP.NET Core MVC • C# WPF / desktop → modern web application • AngularJS → Angular / React • JavaScript → TypeScript • SQL Server → PostgreSQL / cloud databases • On-premise → Azure / AWS • Monolith → modular / service-based architecture I first review the existing code, data and integrations, then choose between gradual modernization, targeted refactoring or a larger migration. 🔄 You need to move an existing application to a new stack or infrastructure I handle legacy application migration with a focus on preserving business logic, critical workflows and existing data. Whether you're moving to modern .NET, changing databases, migrating from desktop to web, or moving infrastructure to Azure/AWS, I can plan and execute the transition. The migration path depends on the product, not every application needs to be rebuilt from scratch. 🧩 You inherited a codebase and don't know what is actually wrong with it I can audit the application before you invest more time and money into development. I review the codebase, architecture, database, APIs, integrations and deployment setup to identify technical risks, recurring problems and areas that need attention first. You get a practical roadmap instead of a recommendation to rewrite everything. 🔗 Your application needs to communicate with other systems I build REST APIs and GraphQL services and connect applications with third-party platforms, authentication providers, payment systems, CRMs, ERPs and internal business tools. I also handle webhooks, data synchronization, background jobs, permissions and API-driven workflows so information moves between systems. 🖥️ You need a complete application, not just a backend developer I work across the frontend and backend, connecting React, Angular or Next.js applications with .NET, Node.js or NestJS services. That includes UI integration, business logic, authentication, role-based permissions, APIs, databases and deployment - so the application works as one system rather than a collection of separate parts. 📊 Your business relies on dashboards, workflows or internal software I build SaaS platforms, enterprise applications, CRMs, customer portals, admin panels, dashboards and workflow systems that support real business operations. I can handle complex business rules, multiple user roles, data-heavy workflows and integrations while keeping the system maintainable as requirements change. 🛠️ TECH STACK • Backend: .NET, .NET Core, .NET 8, ASP.NET, ASP.NET Core, ASP.NET MVC, C#, REST APIs, GraphQL • Frontend: React, Angular, TypeScript, JavaScript, HTML, CSS, Tailwind CSS, Material UI • Data: PostgreSQL, SQL Server, MySQL, MongoDB, Entity Framework, Prisma • Cloud & DevOps: Azure, AWS, Docker, Kubernetes, CI/CD • Applications: B2B, B2C, SaaS, enterprise software, CRMs, internal tools, portals, dashboards, workflow systems, desktop applications 🎯 MY APPROACH I don't start by blindly writing code from a task list. First, I understand the business logic, users, data flow, integrations and current architecture. Then I choose the approach that solves the problem without creating unnecessary technical debt. 📩 Send me what you're building, what isn't working, or what you want to change. Let's figure out the right next step today.