Senior .Net Developer

New
Z
ZavenSoftware Development
Wrocław, Plac Solny 14A, Wrocław, Country code: PLContractSenior
Salary25,200 - 31,080 PLN per hour
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Job Details

Languages
Polish (C1), English (C1)
Experience
10+ years
Required Skills
C#Azure.NETReactCI/CDAzure DevOps

Requirements

  • 10+ years of software development experience.
  • Strong proficiency in C# and .NET.
  • Extensive experience with ASP.NET Core and Web API.
  • Strong knowledge of Entity Framework / EF Core.
  • Strong Azure experience including App Services, Azure SQL, and Application Insights.
  • Experience with Azure DevOps and CI/CD pipelines.
  • Proven experience improving performance and reliability in production systems.
  • Experience leading developers, conducting code reviews, and setting engineering standards.
  • Strong communication skills with technical and non-technical stakeholders.
  • Fluency in Polish (C1) and English (C1).

Responsibilities

  • Lead development work across .NET, C#, and Azure-based applications.
  • Review and improve code quality, performance, maintainability, and reliability.
  • Perform application performance optimizations, including async/await, EF Core usage, caching, API design, memory allocation, HttpClient usage, and error handling.
  • Support the decomposition of monolithic functionality into modular components or services.
  • Partner with QA teams on testability, regression coverage, defect triage, and release readiness.
  • Mentor mid-level developers and raise engineering standards.
  • Collaborate with product and business stakeholders to clarify requirements.
  • Participate in production issue analysis and root-cause reviews.
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25,200 - 31,080 PLN per hour
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