NET Developer with DevOps skills w Warszawa, Polska

We are looking for a hands-on Senior .NET Developer with DevOps skills to join a team delivering cloud-native applications for a client in the regulatory and financial technology domain. You will be primarily focused on designing, developing and maintaining high-quality .NET applications, while also contributing to the deployment, automation and cloud infrastructure layer. This is a senior, autonomous role within a collaborative, fast-moving team - strong communication and ownership are as important as technical depth. In Short 100% REMOTELY or from one of our 2 offices 120 - 160 pln/h ☑️ B2B contract Your Daily Missions Design, develop and maintain scalable applications and services using C# and .NET / ASP.NET. Build clean, maintainable and production-ready code following modern software engineering practices. Work with SQL Server and integrate applications with databases and external services. Design and implement integrations with 3rd party services and APIs. Collaborate closely with other developers, DevOps engineers and stakeholders to deliver features from development through to production. Contribute to and improve CI/CD pipelines, automating build, test and deployment processes. Work with Docker, Kubernetes and Helm to support containerized applications and production deployments. Help improve application reliability, observability, security and performance. Explore and implement practical AI integrations, including AI services or agents, into development workflows or applications. Take ownership of technical solutions and contribute to architectural and engineering decisions. The Essentials We’re Seeking 5+ years of professional experience in .NET development. Strong, hands-on experience with C# and https://jobeax.com/link/GrYTXLZMpxEMJknV / .NET. Solid experience working with SQL Server and relational databases. Experience designing and consuming REST APIs and integrating 3rd party services. Practical experience with Docker and containerized applications. Good working knowledge of Kubernetes and Helm. Experience building or maintaining CI/CD pipelines, preferably with Jenkins or GitLab. Understanding of cloud platforms, infrastructure-as-code and modern deployment strategies. Practical experience integrating AI technologies, including AI agents or AI services, into development workflows or applications. Experience working with production systems and understanding of scalability, reliability and security. Fluent English communication skills (minimum B2+ level). Fluent Polish communication skills (minimum B2+ level). Senior-level autonomy, ownership and problem-solving skills. Nice-to-haves Knowledge of frontend frameworks like React or Angular. Background working in regulated, compliance-heavy or high-availability environments. Experience with observability and monitoring tools. Experience with infrastructure-as-code technologies. Previous experience taking ownership of applications from development through to production. Reasons Why You Would Enjoy Working With Us We work in the latest technologies and with international clients, and our projects are polished from - learn about some of the projects we have completed: We organize TechTalks, meet-ups and create guilds where we exchange knowledge - you can learn a lot from your teammates. We have a close-knit team and we make sure to have regular integrations - we often go out to celebrate together. You can work remotely or choose to work from our offices in Wroclaw or Bielsko-Biala. However, we count on your openness to occasionally visit the office for team meetings or client visits, or possible occasional trips to the client's headquarters. You can adjust your working hours to suit your needs, starting your day between 7:00 and 10:00 am. You can work with great specialists in their fields who also have a sense of humor and other after-hours hobbies. It is the people who create the unique atmosphere and relaxed atmosphere at CSHARK. We have a flat structure - we are not a corporation and don't want to be one . We offer bonuses for employee referrals (from 3000 PLN to 7000 PLN). We organize remote English classes and provide access to the company library. You can also become an author/author of articles published on our technical blog -