.NET Software Developer

Are you an expert developer looking for a role where your technical insights shape a scalable, high-traffic ecosystem? Join us as a Senior Backend Developer to build and refine mission-critical services at the heart of our platform. We work with .NET Core within a sophisticated Service-Oriented Architecture (SOA), prioritizing clean code, systemic efficiency, and advanced automation. Scope Of Services

• Implementing scalable and highly performant backend services in C# using .NET Core. Working closely with solution architects to translate SOA vision into production-ready code.
• Actively participating in Code Reviews, maintaining high code standards, and striving for maximum performance, maintainability, and reliability of our systems.
• Working within Agile (Scrum) methodologies. Being an active contributor to sprint planning, retrospectives, and daily stand-ups, bringing forward innovative ideas and solutions.
• Staying up-to-date with the latest technologies in the .NET ecosystem (ASP.NET Core Web API, NuGet packages) and proactively implementing new tools and practices to enhance our product and processes.

Required Competencies

• Min. 5 years of solid professional experience in software development, with a strong focus on backend technologies.
• Proficient in C# and .NET Core (developing Web Services and Windows Services).
• Hands-on experience with ASP.NET Core Web API, Dependency Injection, and Unit Testing using frameworks like XUnit / NUnit (and related tools such as MOQ, NSubstitute).
• Professional experience with SQL at an application developer level.
• Solid experience using Git for version control and collaborative development.
• Strong verbal and written communication skills in English and Polish.
• Completed higher technical education or similar qualification in a related field.

Optional

• Experience with messaging systems or message brokers (e.g., ActiveMQ).
• Familiarity with .NET libraries such as Serilog, Dapper, Newtonsoft Json, Autofac, Polly, and Refit.
• Experience working on large-scale, multi-user systems with High Availability, High Concurrency, and High Load requirements.
• Experience with deployment tools like IIS, Kestrel, and Kubernetes (K8).
• Familiarity with Jira, Confluence, and CI/CD tools, preferably Azure DevOps.

Cooperation Terms And Perks

• Flexible working hours
• Sports and integration events
• Work-life balance
• Healthy snacks, fruits and vegetables
• Yoga and fitness sessions at the office
• Carpooling