May 26, 2026
.NET Developer
Mid • Hybrid
Krakow, Poland
At Aristocrat Interactive, we are devoted to crafting innovative gaming experiences that captivate and entertain millions around the world. As a .NET Developer, you will play a pivotal role in upholding our reputation for excellence and innovation. Our mission is to bring happiness to life through the power of play, and we are committed to encouraging a culture of inclusion, collaboration, and relentless ambition. You'll be joining a team that thrives on tackling ambitious projects and delivering world-class solutions.
Responsibilities:
Develop and maintain backend services using .NET Framework / .NET Core, applying team guidelines and architecture standards.
Contribute to design and estimation sessions, providing insights into feasibility and technical constraints.
Refactor and optimize existing services for better scalability, maintainability, and performance.
Implement and maintain integrations with internal and external systems (payments, game providers, portals).
Collaborate with developers, QA engineers, and DevOps to ensure efficient delivery through the entire SDLC.
Participate in incident investigation and post-deployment verification under senior guidance.
Write clean, testable, and maintainable code that follows SOLID and team conventions.
Engage actively in Agile ceremonies and continuously improve team practices.
Keep up with evolving tools and technologies to enhance quality and delivery speed.
Required Qualifications:
3+ years of experience in server-side web application development using C# / .NET Framework / .NET Core.
Proficiency in ASP.NET Core, Web API, and MVC frameworks.
Solid understanding of software architecture patterns (layered, modular, microservices).
Experience with SQL Server — T-SQL, stored procedures, performance optimization.
Familiarity with Docker, Kafka, and Redis.
Knowledge of asynchronous communication and distributed systems concepts.
Understanding of REST API design and integration patterns.
Basic exposure to gRPC and WCF service communication.
Strong analytical and structured problem-solving skills.
Bachelor’s degree or equivalent experience in computer science or a related field.
English: Intermediate — able to read documentation and actively participate in daily meetings.
Preferred Qualifications:
Basic understanding of VB, Web Forms, or JavaScript (for legacy module awareness).
Experience with CI/CD pipelines and distributed monitoring tools (e.g., Datadog).
Exposure to high-load, regulated systems such as iGaming or FinTech.
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Warsaw, Poland
100 - 160 PLN
🏢 Summary: Offer for an experienced .NET Developer to design, develop and maintain modern banking and financial systems based on microservices architecture and Microsoft Azure cloud. The role focuses on high-quality software development using DDD and CQRS principles in Agile environments. 🗂️ Requirements: 3–4 years of commercial experience as .NET Developer, Very good knowledge of .NET Core, Experience with DDD and CQRS, Practical experience with Entity Framework, Experience with MS SQL Server and T-SQL, Knowledge of Microsoft Azure cloud services, Experience with Apache Kafka or RabbitMQ, Knowledge of design patterns and coding best practices, Experience working in Agile/Scrum, English level B2–C1 📃 Skills: .NET, .NETCore, C#, DDD, CQRS, EntityFramework, MSSQL, T-SQL, Azure, Kafka, RabbitMQ, Microservices, ASP.NET, Oracle, PostgreSQL, Angular, TypeScript, RxJS, CSS, Docker, Kubernetes, Scrum 🏢 Description: O projekcie Poszukujemy doświadczonego .NET Developera do realizacji projektów dla sektora bankowego i finansowego. Osoba na tym stanowisku będzie odpowiedzialna za projektowanie, rozwój oraz utrzymanie nowoczesnych systemów opartych o architekturę mikroserwisową i rozwiązania chmurowe. Jeżeli cenisz wysoką jakość kodu, nowoczesne podejście do tworzenia oprogramowania oraz chcesz pracować przy rozwoju systemów o kluczowym znaczeniu biznesowym – zapraszamy do aplikowania. Twój zakres obowiązków Projektowanie, rozwój i utrzymanie aplikacji opartych o platformę .NET Tworzenie i rozwijanie rozwiązań zgodnych z zasadami DDD oraz CQRS Implementacja i rozwój usług oraz integracji systemowych Projektowanie i optymalizacja baz danych Współpraca z zespołami analitycznymi, testerskimi oraz DevOps Tworzenie dokumentacji technicznej Udział w code review oraz dbanie o wysoką jakość dostarczanego oprogramowania Współpraca w środowisku Agile/Scrum Nasze wymagania Minimum 3–4 lata doświadczenia komercyjnego na stanowisku .NET Developer Bardzo dobra znajomość .NET Core Doświadczenie w projektowaniu aplikacji zgodnie z podejściem DDD (Domain-Driven Design) oraz CQRS Praktyczna znajomość Entity Framework Doświadczenie w pracy z MS SQL Server oraz T-SQL Znajomość usług chmurowych Microsoft Azure Doświadczenie w integracji systemów z wykorzystaniem Apache Kafka i/lub RabbitMQ Znajomość dobrych praktyk programistycznych oraz wzorców projektowych Umiejętność pracy zespołowej i samodzielnego rozwiązywania problemów Znajomość języka angielskiego na poziomie B2–C1 Mile widziane Doświadczenie w pracy z ASP.NET MVC Znajomość baz danych Oracle oraz PostgreSQL Doświadczenie frontendowe z Angular Znajomość TypeScript, RxJS oraz CSS Doświadczenie w pracy z Docker Znajomość Kubernetes Doświadczenie w projektach dla sektora bankowego lub finansowego Znajomość architektury mikroserwisowej i systemów rozproszonych Oferujemy Udział w zaawansowanych projektach dla sektora bankowego i finansowego Możliwość pracy zdalnej lub hybrydowej Elastyczne godziny pracy Stabilną współpracę przy długoterminowych projektach Możliwość rozwoju kompetencji w obszarze architektury systemów, chmury i nowoczesnych technologii .NET Dostęp do nowoczesnych narzędzi i technologii Współpracę z doświadczonym zespołem ekspertów IT Atrakcyjne wynagrodzenie adekwatne do doświadczenia i kompetencji Jeżeli chcesz rozwijać nowoczesne rozwiązania technologiczne, pracować z architekturą opartą o DDD, CQRS i chmurę Azure oraz realizować projekty o dużej skali biznesowej – zapraszamy do aplikowania.