Senior .NET Developer (f/m/x)

We’re looking for experienced .NET Developers to join our growing team. In this role, you’ll help design and build solutions that integrate seamlessly with our existing systems. You’ll work with technologies related to identity management, cloud-based hosting, and healthcare interoperability standards, contributing to projects that make complex systems work smoothly together.Your tasksDesigning and developing applications and services in .NET technologyDesigning and maintaining solutions related to identity management and data securityWorking on cloud-based systems and supporting scalable service architectureImplementing interoperability standards in the healthcare sectorAnalyzing, diagnosing, and resolving complex technical problems in existing systemsRequirementsAt least 5 years of experience in developing with C# (.NET) and TypeScriptHands-on experience with Azure cloud hosting and infrastructureExperience in implementing or working with Microsoft Entra External ID (CIAM) or similar identity platformsUnderstanding of HL7 standards and healthcare system integrationsKnowledge of TLS and other security protocols, as well as secure application designExperience with test automation frameworks and automated testing practicesAbility to design and implement CI/CD pipelines for modern development workflowsGood English skillsResiding in Poland requiredWhat we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!