Senior .NET Developer

Aristocrat; Kraków; On-site; PLN 180,000 - 320,000; Full time

Job summary

Aristocrat is seeking a Senior .NET Developer to help build the core architecture of a cloud-ready platform, operating across Windows, Linux, and macOS. You will contribute to a distributed microservices system using .NET Core, Docker, Kubernetes, Kafka, Redis, and Ably, shaping the evolution of the platform.

You will design scalable microservices, migrate monoliths, and ensure code quality with TDD while collaborating with multi-functional teams across product, QA, and DevOps.

Qualifications

• 6+ years of backend development with .NET/.NET Core.
• Experience building large-scale web-based systems.
• Strong understanding of microservices architecture.
• Proficient in relational databases.
• Analytical mindset with problem-solving skills.
• Able to work independently while collaborating with the team.
• Excellent written and spoken English communication.
• Familiarity with AI agents and workflows.

Responsibilities

• Designing and developing scalable microservices from the ground up.
• Contributing to the evolution of a cloud-native, platform-independent system.
• Integrating legacy components into modern architecture.
• Reverse-engineering and migrating monolithic parts into microservices.
• Writing clean, maintainable code with a focus on quality and testing (TDD).
• Participating in code reviews and driving engineering guidelines.
• Collaborating with product, QA, and DevOps teams.

Skills

NET/.NET Core

Large-scale web systems

Relational databases

Analytical thinking

Independent with teamwork

English communication

AI agents/workflows

Tools

Docker

Kubernetes

Kafka

Redis

Ably

Job description

We are an entertainment and content creation company powered by technology and pushing the boundaries of innovation and creativity to create world-leading gaming content. An ASX Listed company, headquartered in Sydney, Australia, we’ve grown from humble beginnings to boast more than 8,000 employees across 20 locations around the world, united by the common mission to Bring Joy to Life Through the Power of Play. Through our three operating units: Aristocrat Gaming, Product Madness, and Aristocrat Interactive (online RMG), we provide world-leading mobile and casino games which entertain millions of players across the globe every day. Connection and integrity are at the heart of everything we do. We put the wellbeing of our people first by giving employees the tools they need to grow, be inspired, and be the best they can be every day. We also strive to lead the way in responsible gameplay and set new standards in company governance and sustainability to support a better, brighter future – full of play.

Summary

We are looking for a Senior .NET Developer to join a multi-functional agile team committed to building the core architecture and infrastructure of our next-generation platform. This is not just another feature team role. You will be chipping in to the foundation of a scalable, cloud-ready system, designed to operate across Windows, Linux, and macOS environments. You’ll work in a modern engineering ecosystem, using technologies such as .NET Core, Docker, Kubernetes, Kafka, Redis, and Ably, while actively shaping how the system evolves toward a fully distributed microservices architecture.

What You’ll Do

• Designing and developing scalable microservices from the ground up
• Contributing to the evolution of a cloud-native, platform-independent system
• Integrating legacy components into modern architecture
• Reverse-engineering and gradually migrating monolithic parts into microservices
• Writing clean, maintainable code with strong focus on quality and testability (TDD)
• Participating in code reviews and driving engineering guidelines
• Collaborating closely with multi-functional teams across product, QA, and DevOps

What We’re Looking For

• 6+ years of experience in backend development using .NET / .NET Core
• Hands-on experience building large-scale web-based systems
• Solid understanding of microservices architecture
• Strong knowledge of relational databases
• Analytical attitude with strong problem-solving skills
• Ability to work independently while being a reliable teammate
• Continuous learning approach and adaptability to new technologies
• Good written and verbal English communication skills
• Familiarity with AI agents and workflows

Nice to Have

• Experience with Docker and Kubernetes
• Familiarity with TDD and automated testing approaches
• Understanding of event-driven architecture (Kafka, pub/sub patterns)
• Experience with database development and optimization

Opis stanowiska mógł zostać sprawdzony i udoskonalony przy wykorzystaniu narzędzi wykorzystujących sztuczną inteligencję w celu poprawy przejrzystości, spójności i inkluzywności. Ostateczna treść, wymagania dotyczące stanowiska oraz decyzje rekrutacyjne podlegają weryfikacji przez człowieka i zatwierdzeniu przez Aristocrat.

Filozofia wynagradzania

Oferujemy kompleksowy pakiet wynagrodzenia i świadczeń, zaprojektowany tak, aby pozostawać konkurencyjnym na rynku, wspierać dobrostan pracowników oraz doceniać ich wkład w nasz sukces. Nasze podejście opiera się na zasadzie wynagradzania za wyniki, nagradzając indywidualny wpływ i osiągnięcia. Twój indywidualny pakiet wynagrodzenia zostanie określony na podstawie takich czynników jak umiejętności, doświadczenie, kwalifikacje oraz lokalizacja. W zależności od stanowiska i lokalizacji możesz być uprawniony(-a) do otrzymywania rocznych premii i świadczeń motywacyjnych, benefitów związanych ze zdrowiem i dobrostanem, płatnego czasu wolnego, programów emerytalnych, ochrony ubezpieczeniowej oraz innych lokalnych lub ustawowych świadczeń. Szczegółowe informacje dotyczące wynagrodzenia i świadczeń dla tego stanowiska zostaną omówione podczas procesu rekrutacyjnego.