Senior Full-Stack Engineer (.NET / React)

SNI is serving as a trusted IT Outsourcing partner in line with the needs of World's most prestigious firms and carried out successful projects worldwide.For one of our clients based in Europe, we are currently looking for a Senior Full-Stack Engineer (.NET / React).Job details:Start date: ASAPDuration: 12 months (with extension)Work model: Remote Working hours: US overlap required (minimum 14:00–18:00 CET, preferred 14:00–19:00 CET)Scope:Build, test, and maintain enterprise applications using C#/.NET and React Design APIs and data-access layers using Entity Framework, Dapper, Azure SQL, and Cosmos DB.Decompose legacy monolithic systems into modular and microfrontend architectures.Use AI tools (e.g., Cursor, GitHub Copilot, Claude Code) to accelerate coding, testing, refactoring, and documentation while ensuring code quality and security.Collaborate with client engineers in an Agile environment through code reviews, design sessions, and sprint delivery.Skills:Strong hands-on experience with C#/.NET, React, and Azure cloud services.Proficiency with Entity Framework, Dapper, Azure SQL, Cosmos DB, and microfrontend/modular architectures.Demonstrated practical use of AI development tools (GitHub Copilot, Cursor, etc.) in day-to-day SDLC workflows.Proven track record in decomposing monolithic platforms within Agile teams.Domain experience in supply chain, fleet management, or logistics (nice to have).SNI sp. z o.o. will process personal data for the purpose of the recruitment process in accordance with Data Privacy Policy. The data may also be stored and processed for future recruitment purposes, in accordance with the given consent