Senior Full-Stack Developer (.NET Web) Miejsce pracy: Warszawa Technologies we use Expected C# .NET Core .NET JavaScript TypeScript CSS Git Microsoft Azure Docker Kubernetes About the project We are looking for an experienced Senior Full-Stack Developer who wants to have a tangible impact on architecture, solutions, and the strategic direction of systems supporting key business processes. If you value clean code, sound technical decisions, and collaboration with a mature team, this could be the right place for you. Your responsibilities Develop and maintain core systems used across the organization. Design and implement solutions based on distributed architecture principles. Participate actively in a Scrum development team: planning, estimation, proposing solutions, demos, and iterative product improvement. Co-create technical standards beyond coding. Share knowledge and best practices with fellow developers. Our requirements Bachelor’s or Master’s degree in Computer Science or a technical field. Minimum 6 years of professional experience in application development using C# (.NET Core / ASP.NET). Strong knowledge of relational databases and SQL. Experience designing and building distributed systems. Practical experience with asynchronous communication (e.g., RabbitMQ, Azure Service Bus). Experience building web application frontends using JavaScript / TypeScript / HTML / CSS. Proficiency in Git / GitHub. Strong problem-solving skills, independent and creative. English language skills sufficient for working with documentation and interacting with vendors. Experience with ORM frameworks (NHibernate, Entity Framework / EF Core). Knowledge of message bus tools (MassTransit, NServiceBus). Experience with ReactJS. Writing automated tests (unit, integration, e2e, including UI). Experience with CI/CD pipelines and build automation. Working knowledge of Microsoft Azure. Experience with Docker and Kubernetes (including Helm). This is how we organize our work This is how we work at the clients site This is how we work on a project Continuous Deployment Continuous Integration SQUARE ONE RESOURCES sp. z o.o. At Square One Poland we link IT experts with the business. With over 25 years of experience, we specialize in recruitment processes on a global scale. Despite years of experience, we still have a startup DNA and this is our advantage. Our offices are located in London and Warsaw, however, we can reach clients from all over the world, from start-ups to big worldwide corporations.