Summary: Join our team as a Middle+/Senior .NET Developer to work on an advanced Contact Center Platform, contributing to architectural discussions and ensuring high code quality. Highlights: 1. Participate in architectural and technical discussions 2. Ensure high code quality through comprehensive testing 3. Work in an Agile environment with team collaboration We are looking for a Middle\+/Senior .NET Developer to join our team and work on an advanced Contact Center Platform, designed for modern sales teams and customer service excellence. office remoteEuropean UnionPoland ### **Requirements** * 5\+ years of professional experience in IT; * Strong experience in React and up to date in latest React tech and React 19; * Strong experience in .NET and C\# and ASP.NET to create webapis that are used by React app; * Good experience in SQL Server, especially multi\-tenant Azure SQL configurations; * Experience in using AI coding tools (Claude Code, Cursor, Codex) to maximize productivity, while carefully reviewing AI output to ensure appropriateness; * Experience building high throughput call center apps. Understand how SIP, RTP, and VoIP work; * Experience with FreeSWITCH and Kamailio. ### **Responsibilities** * Participate in architectural and technical discussions, contributing to best practices and system design; * Communication with the client regarding the development of telephony systems; * Ensure high code quality through unit, integration, and end\-to\-end tests; * Work in an Agile environment, participating in code reviews, grooming, and sprint ceremonies. ### **We offer** * Projects for such clients as PayPal, Wargaming, Xerox, Philips, Adidas and Toyota; * Competitive compensation that depends on your qualification and skills; * Career development system with clear skill qualifications; * Flexible working hours aligned to your schedule; * Options to work remotely. ### **Any questions?** Tatyana hh@itransition.com