Hire the Best .NET Core Developers in Lviv, UA

Senior Full Stack Engineer — 10+ years on enterprise multi-tenant SaaS in .NET and Angular, with an AI-augmented delivery workflow (BMad Method + Claude Code) that ships faster without cutting production quality. I've built on German energy-sector platforms, Dutch enterprise BI, UK product startups, and American B2B SaaS. I work in .NET / ASP.NET Core / Blazor on the backend and Angular (current Angular 21) on the frontend, and I'm comfortable owning projects end-to-end — architecture, database design, infrastructure, deployment, and ongoing support. What sets my delivery apart is the AI-augmented workflow. Since late 2025 I've been operating with BMad Method (multi-agent orchestration: Analyst, Architect, PM, Developer, Reviewer) layered over Claude Code and GitHub Copilot. The result is dramatically faster delivery on projects from greenfield MVP through to large brownfield codebase restructures, without losing production quality. I've spread this practice across multiple production engagements over the last 7 months. I'm Microsoft Azure certified (AZ-204, Azure Developer Associate) and currently pursuing AI-103 (Develop AI apps and agents on Azure), PSPO I (Professional Scrum Product Owner), and a data science track. What I've shipped on enterprise SaaS: ▪ 20-microservice German energy-sector multi-tenant SaaS — 6+ years on this platform, including custom shop-system rewrites, MSCONS (UN/EDIFACT) integration for German energy-market data ingestion, and pen-test remediation that closed all findings within a week (the follow-up audit by an independent firm returned zero). ▪ Custom database encryption flow on a multi-tenant utility services platform — encrypted the full production dataset via zero-downtime migration. ▪ Dynamic contract generation with key-replacement templating + role-scoped operations — eliminated engineering as the bottleneck for tenant-side contract customisation. ▪ Greenfield Microsoft Fabric / Power BI platform with GDPR-compliant Entra ID auth (3-developer team I led). ▪ 2-month MVP for a UK entertainment crowdfunding platform, leading a 2-developer team and owning client communication. What I'm best at: ▪ Multi-tenant SaaS architecture from greenfield through to restructuring of established codebases ▪ AI-augmented delivery (BMad + Claude Code) — making solo and small-team work feel like a much larger team ▪ Microsoft stack: .NET / Azure / Entra ID / Microsoft Fabric ▪ Database design and migrations, including unusual access patterns (custom encryption, multi-tenant isolation) ▪ Domain-specific integrations like MSCONS / UN-EDIFACT for the German energy market What I'm looking for here: ▪ Multi-week senior IC / architect engagements (4-12 weeks) ▪ Project-based architecture / code review / refactor work ▪ Greenfield MVPs where AI-augmented workflow can shine How I work: ▪ 4 hours of daily overlap with US business hours (11:00-15:00 Eastern) — my evenings are your mid-day ▪ A written progress summary every week, so you never have to chase status ▪ Straight answers on scope and risk before we start, not after Happy to discuss your project on a quick call before bidding — I'll tell you honestly whether I'm the right fit for it.

You have a product to build — or one that needs serious work. You don't want to coordinate three different specialists or explain the same context five times. You need one developer who understands the full picture and can execute across the stack. I build complete software products — cross-platform mobile and desktop apps with .NET MAUI, web interfaces with Blazor or React, and the backend APIs and cloud infrastructure that tie everything together. Whether you're starting from scratch, migrating legacy software, or adding major features to something existing, I can own the technical side end-to-end. What I work with: — Cross-platform: .NET MAUI, Blazor, Xamarin, React Native — Backend: ASP.NET Core, Web APIs, REST, GraphQL, Entity Framework Core — Frontend: Blazor, React, Angular, TypeScript — Databases: SQL Server, PostgreSQL, SQLite, Azure SQL — Cloud & DevOps: Azure, Docker, GitHub Actions, CI/CD pipelines — Integrations: ERP systems, third-party APIs, payment systems, GPS, AI services Some things I've shipped: ✔️ A production POS system running on handhelds and tablets, integrated with Sage 100 ERP — offline-first, barcode scanning, returns, and background sync that holds up in real warehouse conditions. ✔️ An industrial machine monitoring system for shop-floor operators and supervisors — real-time KPIs, downtime tracking, lot traceability, and automated reports integrated with Sage via GraphQL. ✔️ A cross-platform voice note app with Whisper AI transcription, timestamped to YouTube videos, synced across iOS and Android. ✔️ An MVP logistics platform matching truck drivers with freight clients — driver verification, GPS tracking, subscription payments, and a grant to prove it had legs ($5k accelerator win). How I work: I give you a straight answer on what's feasible, flag problems before they become expensive, and ship working software on a defined schedule. No inflated estimates, no disappearing mid-project. If that sounds like what you need, let's talk.

Senior .NET ASP.NET C# Full-stack developer with 8 years of experience. Since the start of my career, I’ve delivered 80+ projects across logistics, transportation, warehousing, inventory, automotive, supply chain and marketplace domains. I work with founders, product teams, and enterprises, helping companies cut development costs by up to 50% while delivering stable, production-ready software. 👨‍💻 My skills include: • Working with .NET frameworks from the very first contact: .NET, .NET Core, Node.js, NestJS, ASP.NET, ASP.NET Core, ASP.NET MVC, C#, Entity Framework, API • Full-stack development: .NET C#, ASP.NET , React, Next.js, Angular, HTML, CSS, TypeScript, Tailwind, Javascript • For databases I usually use MySQL, SQL Server, PostgreSQL, Redis, MongoDB • Cloud and deployment(DevOps) experience in : AWS, Azure, Microsoft Azure, CI/CD pipelines, Docker, Kubernetes, CI/CD. • Real time notifications and messaging: SignalR, WebSocket • Architecture & Scalability: Monolithic Architecture, Microservices, Event-Driven Systems • Security & Authentication on JWT, OAuth 2.0, Role-Based Access Control • Integrations: Payment Gateways, CRM/ERP Systems, Third-Party APIs, GPS & Tracking Services 🔍 Key Project Highlights: Transportation Management System Using .NET Framework, ASP.NET, ASP.NET MVC, React, SQL Server, Web API, SignalR, JWT, Azure developed a transportation management system supporting shipment lifecycle management, dispatch planning, vehicle allocation, driver assignments, route optimization, administrative and operational dashboards and real-time shipment tracking. Maintained Travelport Universal API integrations using C# / .NET Inventory Platform/ERP Spent years as a Lead .NET full stack developer building a comprehensive inventory ERP system for supply chain management. Real-time inventory tracking, automated order intake, stock replenishment, and delivery coordination modules with microservice integrations, Web APIs, and cloud-based infrastructure. Tech stack I used: .NET, ASP.NET Core, C#, React, Next.js, TypeScript, SQL Server, Entity Framework, and RESTful APIs. Marketplace for Car Auctions (Automotive marketplace) Built from scratch multi-tenant automotive SaaS with integration with Rapid Car Check API and Anthropic Claude AI API (calculates the purchase offer based on car details and condition) . I used a .NET-based backend with microservice architecture and SQL database integration. Key features: dealer management, vehicle listings, bidding workflows, subscriptions, payment processing, and vehicle verification services developed with ASP.NET Core, React+ Next.js, Entity Framework, RabbitMQ, and SQL Server and TypeScript. Custom tracking and monitoring App IOS/Android As a Team Lead contributed to a real-time tracking platform for monitoring field operations, assets, and vehicle movements with live GPS tracking, geolocation, task management, photo uploads, and operational reporting. Built scalable APIs, integrated Google Maps and GPS providers, implemented push notifications and offline synchronization. Tech: ASP.NET Core, Web API, React, React Native, TypeScript, SignalR, SQL Server, Azure, Google Maps API. CRM Reviewed the architecture of a multi-role CRM for a printing business. Using .NET Core, improved the system performance by 30% through database query tuning and backend refactoring. Using .NET Core, ASP.NET Core, C# developed new modules for order processing and invoicing. Key things to consider: 📎 8+ years as a web and app developer and .NET software engineer 📎 110+ clients worldwide (US, UK, EU, Middle East, Australia) 📎 50% cost reduction through AI-assisted coding (Claude Code, Codex, Cursor and Chat GPT) and proven frameworks 📎 Delivered 70+ Web platforms, SaaS products, and Mobile apps 📎 Strong focus on architecture, clarity, and long-term maintainability If you’re looking for a full-stack .NET developer, a reliable .NET engineer or someone who can grow into a long-term technical partner – I’m ready to help, click the green INVITE button, and let’s give it a try.

Overview / Profile Description: I am a passionate and detail-oriented Full-Stack Software Developer with experience in building scalable and high-performance applications using modern technologies. I’m always looking to improve my skills and deliver clean, efficient code that solves real-world problems. 🔧 Technical Skills: Frontend: HTML5, CSS3 (SASS/SCSS), JavaScript, TypeScript, React, Next.js, Electron, React Native Backend: Node.js, NestJS, .NET Databases: SQL, MongoDB 💡 Personal Qualities: Strong productivity and time management Excellent problem-solving and analytical thinking Good organizational and planning abilities Eager to learn and grow as a developer I am ready to contribute to your project and help bring your ideas to life with high-quality code and a proactive attitude. Let’s build something great together!

Hello, I'm Mykhailo from Blackthorn Vision 🚀, a premier custom software development company based in Ukraine, Eastern Europe. With over a decade of experience, we specialize in empowering technology companies by expanding their tech teams or managing their projects entirely. Technology Expertise: Backend Development: We excel in a wide range of backend technologies including .NET, Golang, ASP.NET, C#, WPF, MSSQL, API development, Python, Docker, Kubernetes, and various other web technologies. We also have extensive experience with cloud services (AWS, Azure, Google Cloud). Frontend Development: Our expertise in frontend development includes JavaScript (React.js, Angular.js, TypeScript), Electron.js, Node.js, jQuery, and other web technologies. We are proficient in creating dynamic and responsive user interfaces. Mobile Development: We specialize in mobile development for both iOS and Android platforms, using iOS Swift, Android Kotlin, and Xamarin. We have extensive experience in creating robust and user-friendly mobile applications. Artificial Intelligence and Machine Learning: Our ML & AI tech stack includes Python, Numpy, Pandas, Scikit-learn, TensorFlow, Matplotlib, Plotly, OpenCV, SQL, Apache Arrow, Apache Parquet, Apache Airflow, Azure ML, and Vertex AI. We are proficient in building and deploying intelligent solutions. In addition, we have substantial experience with Silverlight, UWP, XAML, and extensive work with cloud-based machine learning platforms) 💻. Here are some quick facts about us: 14 Years of Industry Experience: We have been on the market for over 14 years 📆, consistently delivering high-quality software solutions. Microsoft Partnership: Our collaboration with Microsoft enables us to stay at the forefront of technology and innovation 🔧. Global Presence: With 2 development centers in Ukraine and a team of 120+ professionals 👥, we have successfully completed 73+ long-term projects for Fortune 500 companies, serving clients across 25+ countries 🌍. Long-Term Client Relationships: Our client engagements last for 5+ years on average ⏳, a testament to our commitment and quality. Industry Focus: We have profound expertise in various domains such as Energy, Oil & Gas, FinTech, Biotechnology, Healthcare, Budgeting & Accounting, Hospitality, Industrial Automation, Manufacturing, Internet of Things, Computer Software, Clouds & CyberSecurity 🏭. Our track record on Upwork speaks for itself: $300K+ in Total Earnings 💰 74 Total Jobs Completed ✅ 9,846 Total Hours Worked ⏲️ We believe in building success stories 🌟. You can find more about our achievements and client feedback on our website blackthorn-vision.com and our Clutch profile clutch.co/profile/blackthorn-vision#highlights. Connect with us on Instagram @blackthorn_vision and Facebook @blackthornvision to stay updated with our latest projects and community engagements 📲. Let's collaborate to turn your vision into reality with our cutting-edge solutions and experienced team 🌈. Reach out to discuss how we can support your next project.

I’m a Senior Full Stack Developer and Software Architect with 13+ years of experience building scalable web applications using .NET, ASP.NET Core, Angular, C#, TypeScript, SQL Server, Azure, and modern cloud technologies. I specialize in full stack development with ASP.NET Core and Angular, developing enterprise-grade SaaS platforms, business applications, CRM systems, ERP systems, dashboards, REST APIs, and cloud-native solutions. My core stack includes: • .NET / .NET Core / .NET 6 / .NET 7 / .NET 8 / .NET 9 • ASP.NET Core • C# Development • Angular 12 / Angular 13 / Angular 14 / Angular 15 / Angular 16 / Angular 17 / Angular 18 / Angular 19 • TypeScript / JavaScript • Full Stack Development • Web API / REST API Development • Entity Framework Core • SQL Server / PostgreSQL / MySQL • Azure Cloud / Azure App Services / Azure DevOps • Microservices Architecture • Docker / Kubernetes • CI/CD Pipelines • SignalR • Clean Architecture • Domain-Driven Design (DDD) • Software Architecture • SaaS Development • Enterprise Application Development • Performance Optimization • API Integration • Authentication & Authorization • JWT / OAuth • Redis / Caching • Agile / Scrum As a Full Stack .NET Developer and Angular Developer, I help businesses build fast, secure, maintainable, and scalable applications with modern UI/UX and robust backend architecture. I have experience leading development teams, designing scalable .NET architectures, modernizing legacy ASP.NET applications, and building Angular frontends integrated with ASP.NET Core APIs. I can help with: - Full Stack .NET & Angular Development - ASP.NET Core Web Applications -Angular SPA Development -SaaS Product Development -Enterprise Software Development -REST API Development -Cloud Migration & Azure Solutions -Legacy System Modernization -Team Leadership & Code Review -Software Architecture Consulting -Performance Optimization -AI-assisted Development Workflows I focus on clean code, scalable architecture, fast delivery, and long-term collaboration. If you need a Senior .NET Developer, ASP.NET Core Developer, Angular Developer, or Full Stack Engineer who understands both business and technology - let’s connect.