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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.
Your Responsibilities
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.
Our Requirements
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.
Benefits
Flexible working hours
Sports and integration events
Work-life balance
Healthy snacks, fruits and vegetables
Yoga and fitness sessions at the office
Carpooling
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