We are a technology company that started its journey in 2008. Our main headquarters is located in the picturesque city of Poznań, nestled by the beautiful Malta lake. For more than 17 years, we have been assisting companies in developing and implementing innovative fintech solutions. Leveraging our expertise in areas such as blockchain, online payments, and more, our clients can invent and develop cutting-edge solutions and services that keep them at the forefront of innovation. Senior .Net Developer SKILLS: C# | .Net | .Net Core | REST API | CI/CD B2B: PLN 120 - 150 / Hour 💰 LOCATION: REMOTE (POLAND) START DATE: ASAP Key Services and Requirements: A Roadmap to Your Professional Success 🚀 Scope of services: - Design, develop and maintain scalable backend services using C# and .NET/.NET Core. - Develop and enhance microservices powering high-traffic gaming platforms. - Build clean, maintainable and well-tested APIs and backend components. - Participate in the full software development lifecycle, from design and implementation to code reviews, testing and deployment. - Troubleshoot, analyse and resolve production issues, focusing on root-cause analysis. - Collaborate closely with Product Managers, QA Engineers, DevOps and other Software Engineers. - Contribute to architectural discussions and continuous improvement initiatives. - Write unit and integration tests to ensure software quality and reliability. - Support the migration of legacy components to modern microservice-based architecture where applicable. - Participate in Agile ceremonies, including sprint planning, daily stand-ups and retrospectives. Here’s a set of skills we require: - 4+ years of commercial experience with C# and .NET/.NET Core. - Strong knowledge of ASP.NET Core and Web API. - Experience building scalable backend services and distributed systems. - Solid understanding of REST APIs. - Experience with relational databases, such as MS SQL Server or similar. - Familiarity with Git and CI/CD practices. - Strong debugging and problem-solving skills. - Good understanding of object-oriented design principles and design patterns. - Ability to communicate effectively in English. Nice to have experience with: - Docker and Kubernetes. - Kafka or other message brokers. - Redis. - gRPC, WCF or legacy .NET Framework applications. - Dapper or Entity Framework. - TDD and automated testing. - Cloud platforms such as Azure or AWS. - Agile/Scrum methodologies and working in Agile teams. - iGaming, betting, lottery or other high-availability transactional systems.