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Working in Agile teams, you will take ownership of end-to-end delivery - from technical analysis and implementation to deployment and operational support. You will collaborate closely with architects, DevOps and QA to ensure high-quality, secure and reliable systems while actively contributing to improving engineering standards, software quality and delivery processes.\nYour tasks\nDesign and implement backend services and REST APIs using .NET/C#\nDevelop production-ready solutions in distributed and cloud-native architectures\nPlan and execute development tasks independently\nContribute to technical design and architecture discussions\nWrite and maintain technical documentation and design notes\nPerform code reviews and ensure adherence to engineering standards\nBuild and maintain automated tests (unit, integration, API)\nTroubleshoot and resolve application and integration issues\nParticipate in Agile/Scrum ceremonies\nSupport CI/CD pipelines and deployment processes\nImplement monitoring, logging and observability practices\nWork with asynchronous processing and messaging systems\nShare knowledge and support junior engineers\nYour skills\nMin. 5 years of commercial experience with .NET and C#\nStrong knowledge of OOP, SOLID principles and clean code\nExperience with ASP.NET Core\nPractical knowledge of asynchronous and multithreaded programming\nExperience building RESTful APIs and distributed systems\nKnowledge of event-driven architecture and messaging tools (e.g. RabbitMQ, Kafka, Azure Service Bus)\nExperience with dependency injection and backend frameworks\nExperience with CI/CD pipelines and Git-based workflows\nExperience with automated testing frameworks (xUnit, NUnit, FluentAssertions)\nUnderstanding of testing strategies (unit, integration, contract tests)\nKnowledge of relational databases and Entity Framework Core\nAbility to write efficient SQL queries and debug data issues\nFamiliarity with logging and monitoring tools\nStrong problem-solving skills and ability to work independently\nExperience working in Agile/Scrum teams\nGood command of English\nNice to have\nExperience with Azure or AWS\nKnowledge of Docker and Kubernetes\nExperience with microservices architecture\nBasic frontend knowledge (Angular, React, TypeScript)\nFamiliarity with gRPC\nExperience in performance optimization and resiliency patterns\nPractical use of AI coding assistants (e.g. Copilot, ChatGPT)\nKnowledge of Spec-Driven Development\nExperience in BFSI domain\nWe offer\nHybrid work in one of our locations: Lodz, Poznan, Krakow, Warszawa, Wroclaw (2 office days per week)\nWorking in a highly experienced and dedicated team\nBenefit package tailored to your needs (medical, sport, lunch subsidy, life insurance, etc.)\nOnline training and certifications\nAccess to e-learning platform\nWork From Anywhere (up to 140 days/year abroad)\nSocial 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