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Numer referencyjny: 1199085
HAYS POLAND Sp. z o.o.
Position Overview
We are seeking a .NET Developer to join a backend team responsible for building and enhancing systems that support business operations, integrations, and data processing in our client’s international environment.
This role focuses mainly on .NET technologies while offering opportunities to collaborate within a broader ecosystem that also includes Java-based solutions.
What You’ll Be Working On
Developing, maintaining, and optimizing backend applications built on .NET to ensure high performance and reliability
Designing and implementing APIs that meet business and technical expectations
Analyzing requirements and delivering new features, improvements, and system enhancements
Supporting and expanding existing solutions
Creating and managing integrations with internal and external systems
Troubleshooting issues, performing root-cause analysis, and ensuring long-term stability
Cooperating with distributed teams across locations such as Poland and Germany
Participating in code reviews and shaping coding standards and best practices
Preparing and maintaining clear, structured technical documentation
Supporting deployment processes and contributing to CI/CD pipelines
What We Expect From You
At least 3 years of professional experience in .NET development
Strong command of C#
Experience in backend development and API creation
Working knowledge of relational databases
Familiarity with Git
Experience in Agile/Scrum teams
Strong communication skills and readiness to collaborate in an international setting
English at B2 level or higher
Technology Environment
.NET (including .NET Framework, .NET Core, .NET 5+)
C#
REST APIs
Git
Databases such as MS SQL Server, SQLite, PostgreSQL
CI/CD tools and pipelines
Nice to Have
Experience with Java or readiness to work in a combined .NET + Java ecosystem
Hays Poland sp. z o.o. jest agencją zatrudnienia zarejestrowaną w rejestrze prowadzonym przez Marszałka Województwa Mazowieckiego pod numerem 361.
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