.NET Developer

Our requirements

• Strong proficiency in C# and the .NET ecosystem, including .NET Core.
• Experience building backend services and APIs using ASP.NET Core (RESTful APIs, Web API, middleware).
• Good understanding of object-oriented design, design patterns, SOLID principles and clean architecture.
• Experience with Entity Framework Core, LINQ, and database design (SQL Server, PostgreSQL) including writing optimized queries and migrations.
• Familiarity with unit testing, integration testing and test frameworks (xUnit, NUnit, MSTest, Moq) and TDD practices.
• Knowledge of asynchronous programming (async/await), multithreading and concurrency patterns.
• Experience with source control systems, primarily Git (branching strategies, pull requests, code reviews).
• Understanding of CI/CD pipelines and build tools (Azure DevOps, GitHub Actions, TeamCity, Jenkins) and deployment practices.
• Familiarity with containerization and orchestration technologies (Docker, Docker Compose, Kubernetes) is a plus.
• Experience with cloud platforms (Azure, AWS or GCP) and cloud services integration (App Services, Functions, Blob Storage, RDS/SQL, IAM).
• Knowledge of security best practices for web applications (authentication, authorization, OAuth2/OpenID Connect, data protection, OWASP).
• Experience with frontend integration (SPA frameworks like Angular, React, or Blazor) and working with API contracts.
• Ability to read and write technical documentation, create architecture diagrams and participate in design discussions.
• Strong debugging and performance tuning skills, profiling tools, memory and CPU diagnostics.
• Good communication skills, ability to work in Agile/Scrum teams, participate in sprint planning and estimations.
• Experience with messaging and event-driven architectures (RabbitMQ, Kafka, Azure Service Bus) and background processing (Hangfire, Azure Functions).
• Familiarity with logging and monitoring tools (Serilog, NLog, ELK stack, Application Insights, Prometheus/Grafana).
• Willingness to learn new technologies, adopt best practices and mentor junior developers.
• Bachelor’s degree in Computer Science or equivalent experience is preferred, along with 3+ years of professional .NET development experience (or as specified by employer).

Your responsibilities

This is how we organize our work

This is how we work on a project

• Clean Code
• architect / technical leader support

We create open source

What we offer

• Ability to define your development path
• Mentoring (with the use of practical tasks)
• An informal but productive work environment

Development opportunities we offer

• mentoring
• substantive support from technological leaders
• technical knowledge exchange within the company
• time for development of your ideas

Benefits

• remote work opportunities
• flexible working time
• integration events
• opportunity to obtain permits and licenses

Recruitment stages

• 1.
  About 30 minute HR interview
• 2.
  About 1h technical interview
• 3.
  Call with a customer (optional)

PROGNETICS SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ