Senior .NET Engineer

Senior .NET Engineer | Full-time | 100% Remote (Europe, excluding Netherlands) For a fast-growing, international travel-tech scale-up, we are looking for a Senior Software Engineer (.NET) to join their distributed engineering team. Do you have 4+ years of hands-on experience with .NET/C#, CQRS, and TDD, and are you looking for a 100% remote role with complete technical ownership and a clear progression path toward Staff Engineer? The Role: In this role, you will own key backend microservices end-to-end, making critical architectural decisions, shipping code directly to production, and collaborating in an AI-native engineering environment using tools like Claude Code, Cursor, and Copilot agent mode. Responsibilities: Design, build, and deploy scalable microservices and Travel APIs using modern .NET and C#.Take full end-to-end technical ownership of production services, ensuring stability and operational reliability.Collaborate directly with Product Managers and stakeholders to translate business needs into technical designs.Apply OOD, TDD, SOLID principles, and CQRS patterns deliberately in day-to-day development.Leverage AI coding agents daily for building features and conducting peer code reviews.Mentor fellow developers and elevate technical quality across the squad. Profile: 4+ years of professional backend software engineering experience with .NET and C# as your primary language.Proven track record of independently owning components or microservices in production.Strong proficiency in SOLID principles, TDD, and CQRS architectures.Experience using AI coding tools in daily engineering workflows.Strictly based outside the Netherlands and working within ±2 hours of CET/CEST timezone.Excellent English communication skills (written and spoken). Nice to have: Experience with NoSQL databases and message brokers such as RabbitMQ.Familiarity with GDS systems or travel sector APIs (Amadeus, Galileo).Prior experience in remote-first software scale-up environments. Conditions & Benefits: Gross annual salary up to €75,000 gross, including holiday allowance, based on 40 hours (up to €5,800 gross per month).100% remote flexibility across Europe (strictly outside the Netherlands, ±2h CET).Clear, structured progression path toward Staff Software Engineer.Streamlined recruitment process (2 to 3 weeks).If interested, you will receive additional information about the organization, team, location, and next steps.Constant guidance from a QGROUP consultant through the whole process. If you are interested, you will receive additional details regarding the organization, the team, the location, and the next steps.