NET Full Stack Developer

2 weeks ago

ClujNapoca Metropolitan Area, Romania Perficient Europe Full time

We're looking for experienced software developers with .NET and C# expertise to join our Romania Business Unit. You'll work on a global medical project for one of Perficient's clients, contributing to the development of impactful digital solutions in the medical industry.

Responsibilities:

  • Design, build, and maintain a WPF desktop application (MVVM) and an ASP.NET Core Web API.
  • Implement clean, testable, maintainable code using OOD, SOLID, and design patterns.
  • Create modern XAML UI with strong data binding, templating, styles/themes, and accessibility.
  • Develop RESTful endpoints with proper routing, validation, error handling, and observability.
  • Integrate authentication/authorization (OAuth2/OpenID Connect), role-based access, and secure storage of secrets.
  • Work with relational databases (SQL Server/SQLite) via EF Core; write performant SQL where needed.
  • Use dependency injection, configuration management, logging, and telemetry.
  • Conduct code reviews, write unit/integration tests, and contribute to CI/CD pipelines.
  • Collaborate with product, BA, QA, cybersecurity, and client engineering teams in a SAFe environment.
  • Apply secure coding practices and medical software lifecycle/compliance expectations.
  • Mentor junior/mid-level developers and drive continuous improvement.
  • Use approved AI developer tools (e.g., GitHub Copilot, Gemini) responsibly and in line with policy.

Qualifications:

  • 5+ years of hands-on experience with .NET and C# on Windows.
  • Strong WPF experience (MVVM, XAML, data binding, commands, resource dictionaries, async/await, threading).
  • Solid experience building ASP.NET Core Web APIs (REST, DI, validation, filters/middleware).
  • Proficiency with EF Core and relational databases (SQL Server/SQLite), schema design, and performance.
  • Strong testing background (unit/integration; xUnit/NUnit/MSTest; mocking frameworks like Moq).
  • Practical knowledge of CI/CD and Git-based workflows (Azure DevOps/GitHub).
  • Secure coding habits and familiarity with OWASP guidelines.
  • Excellent communication and teamwork; fluent English.

Nice-to-have:

  • Healthcare/medical domain experience (HIPAA/PHI, IEC 62304, ISO 13485, FDA 21 CFR Part 11).
  • Experience with HL7/FHIR, DICOM/PACS integrations.
  • UI frameworks/libraries, performance profiling, memory/GC tuning.
  • Messaging and integration (Azure Service Bus/RabbitMQ).
  • Cloud experience (Azure, AWS).
  • Tools: Visual Studio, Swagger/OpenAPI, SonarQube.

Educational Background:

  • BSc in Computer Science or a related field is required.

Work setup

  • Location: Romania (Cluj-Napoca / hybrid).
  • Eligible to work in Romania; collaboration with global teams and occasional client meetings.

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