We are looking for a Senior .NET Developer to join a cross-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 contributing 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, as well as evolving current .NET Framework solutions.
Please note: This role follows a hybrid working model and requires onsite attendance at our Kraków office three days per week.
What you'll do
- Designing and developing scalable microservices from the ground up
- Implementing according to architectural and product design documents
- Reverse engineering of current business logic modules
- Modernizing legacy components to meet new business requirements
- Writing clean, maintainable code with a strong focus on quality and testability (TDD)
- Participating in code reviews and driving engineering guidelines
- Collaborating closely with cross-functional teams across product, QA, and DevOps
- Building and maintaining the team's AI tooling — reusable skills, custom agents, MCP servers, and repo instruction files that encode how our platform actually works
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
- Good knowledge of relational databases
- Analytical mindset 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
AI-first engineering (we mean this literally)
Our codebase is too large to hold in your head, so we work with AI agents by default, and we invest in the tooling that makes them accurate here.
We're looking for someone who:
- Uses agentic coding tools daily for real production work — not autocomplete, but delegating multi-step tasks and reviewing the output critically
- Has authored reusable agent tooling: skills, custom subagents, slash commands, MCP servers, hooks, or equivalent — and can talk about what made them work or fail
- Knows how to give an agent the right context, scope a task so it succeeds, and recognize when the output is confidently wrong
- Is interested in improving our AI setup, not just consuming it
If you've built something in this space — a skill, an agent, a tool, a workflow — mention it in your application. We'd rather see that than a certification.
Nice to have
- Experience with Docker and Kubernetes
- Familiarity with TDD and automated testing approaches
- Understanding of event-driven architecture (Kafka, pub/sub patterns)
This job description may have been reviewed and enhanced using AI-assisted tools to improve clarity, consistency, and inclusivity. All final content, role requirements and hiring decisions remain subject to human review and approval by Aristocrat.
We offer a comprehensive pay and benefits package designed to stay competitive in the market, support your wellbeing, and recognise your contribution to our success. Our approach is underpinned by a pay-for-performance belief in rewarding individual impact. Your specific compensation package will be determined by factors such as your skills, experience, qualifications, and location.
Depending on your role and location, you may be eligible for annual bonuses and incentives, health and wellbeing benefits, paid time off, retirement plans, insurance coverage, and other local or statutory benefits.
Specific details about compensation and benefits for this position will be discussed during the recruitment process.
Skills Required
- 6+ years of backend development experience using .NET or .NET Core
- Experience building large-scale web-based systems
- Understanding of microservices architecture
- Knowledge of relational databases
- Experience using agentic coding tools for production work
- Experience authoring reusable agent tooling, custom subagents, slash commands, MCP servers, hooks, or equivalent
- Ability to provide appropriate context to AI agents and critically review their output
- Analytical mindset and strong problem-solving skills
- Ability to work independently and collaboratively
- Good written and verbal English communication skills
- Experience with Docker and Kubernetes
- Familiarity with TDD and automated testing
- Understanding of event-driven architecture, Kafka, and publish-subscribe patterns
Aristocrat Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Aristocrat and has not been reviewed or approved by Aristocrat.
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Healthcare Strength — Medical coverage offers multiple Aetna options with preventive care fully covered and $0 in‑network outpatient mental health visits, plus employer‑paid premiums on at least one dental and one vision plan. Feedback suggests first‑day eligibility and HSA funding increase perceived value.
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Parental & Family Support — Paid parental leave provides up to 12 weeks for primary caregivers and 10 days for secondary caregivers, with adoption/surrogacy reimbursement and access to Lyra sessions. Feedback suggests these supports materially enhance family and mental wellbeing.
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Equity Value & Accessibility — The SuperShare program matches employee share purchases with free shares up to a defined annual limit, with clear enrollment windows and a two‑year vest. Feedback suggests this structure delivers uncommon ownership value compared with standard ESPPs.
Aristocrat Insights
What We Do
Aristocrat Leisure Limited is an ASX20 listed company and one of the world’s leading providers of gaming solutions. We’re licensed in over 300 jurisdictions and operate in over 90 countries around the world. We’re also proud to have a team of over 6500 employees that deliver outstanding results by pushing the boundaries of innovation, creativity and technology each day. We offer a diverse range of products and services including electronic gaming machines, social gaming and casino management systems, but it doesn’t stop there. Despite our global presence and exponential growth, we remain an ideas company at heart that is committed to delivering outstanding results for our customers and players and an unparalleled experience for our employees, who have the opportunity to grow, be inspired and be the best they can be. Our values of Talent Unleashed, All About the Player, Collective Brilliance and Good Business, Good Citizen guide and inspire us to live our mission of bringing joy to life through the power of play – every day. Come and join us – let’s play!
Why Work With Us
Individually we’re great, but together we’re brilliant. Our employees are the beating heart of our business and we attract the best people in the industry thanks to our unique and inspiring culture. Come and join the team and help bring joy to life through the power of play.
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