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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior .NET Backend Developer - **Company:** Greentube GmbH - **Location:** Wien, Austria - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** .NET Framework, Application Programming Interfaces (APIs), Unit Testing, Microsoft Azure, Code Review, Databases, Continuous Integration, Extract Transform Load (ETL), Distributed Systems, PostgreSQL, NoSQL, Pair Programming, RabbitMQ, Redis, SignalR, SQL Databases, WebSocket, Azure Service Bus, .NET Core, Backend, Vue.js, Build Management, Containerization, Gherkin, Kubernetes, Cassandra, Apache Kafka, Graphql, Front End Software Development, Restful APIs, Docker - **Published:** August 23, 2026 - **Apply:** https://careerjet.at/jobad/at406954f8ec2177d531ca924717bc93db ## About the Role * Professional experience working with .NET technologies, with .NET 5+ experience preferred * Strong knowledge of database technologies, with experience across SQL and NoSQL preferred * Familiarity with the API technologies that connect our backend to frontend experiences, including REST, GraphQL, and WebSockets * Familiarity with Docker, Kubernetes, and cloud-native technologies * Understanding of distributed systems and the challenges of building technology capable of supporting millions of players worldwide * Capable of building event-driven systems using message buses like Kafka, RabbitMQ, and Azure Service Bus * Strong product thinking, with the ability to turn stakeholder needs into clear and effective technical requirements * Collaborative mindset with experience in pair programming, team workshops, knowledge sharing, and supporting the growth of others * Agile mindset and a pragmatic approach to building solid, evolvable solutions Confident communicating and collaborating in English, both written and spoken ## Description As a Senior .NET Backend Developer, this is a chance to turn great game ideas into reality, tackle exciting challenges at scale, and see your work make a real difference to the player experience. From idea to production, there's plenty of room to shape how things are built, bring fresh ideas to the table, and have fun solving tricky technical problems along the way. Your tasks Analyse * Turn technical discussions and stakeholder feedback, including insights from Customer Support and CRM, into clear, actionable requirements and practical solutions * Explore, evaluate, and manage libraries and tools that help the team choose the right solution for each project Develop * Design and build optimised distributed backend systems and real-time gaming features capable of handling hundreds of thousands of operations per second and up to 50.000 simultaneous players * Create and optimise databases and ETL pipelines to keep data reliable and systems performing at their best * Bring new features to life in our Vue.js Admin Panel by implementing their configuration Test * Create and maintain automated and performance tests that keep features reliable under pressure * Develop and maintain Vue.js Test-Client features that make backend features easy to test and validate Deploy * Build and maintain CI/CD pipelines and fast, reliable rollback strategies * Work with web and mobile frontend teams to integrate backend services seamlessly across their platforms Maintain * Build and continuously improve Kubernetes infrastructure and monitoring across Azure and local development environments * Maintain security protocols covering user roles, access controls, encryption, and security updates * Document incidents from root cause through resolution and post-mortem analysis, turning issues into opportunities to improve * Share your expertise with your colleagues and improve the overall team quality Tools * Technologies: .NET 10, Vue.js, GraphQL via Hasura, WebSockets via SignalR, PostgreSQL, Cassandra, Redis, OpenTelemetry, and Identity Server The Team * Architecture is a team effort. New solutions are discussed openly and shaped together, with team buy-in before development begins * Code reviews are part of how we grow. Every pull request is reviewed by the rest of the team within a few hours, helping us maintain quality while sharing knowledge along the way * We work as peers. The manager is part of the team, and technical decisions are discussed openly and made together * Choose what you build. Features aren't simply assigned, team members can choose which features they want to work on from the sprint * Quality comes built in. Unit tests and Gherkin-based acceptance tests are part of our definition of done and are kept up to date * Keep it simple. We follow the YAGNI principle, avoiding unnecessary complexity and focusing on solid, evolvable architectures * Own the full picture. Everyone builds a strong understanding of our Kubernetes components and CI/CD, so infrastructure knowledge is shared across the team ## Related Videos - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Accelerating Authentication Architecture: Taking Passwordless to the Next Level](https://www.wearedevelopers.com/videos/733-accelerating-authentication-architecture-taking-passwordless-to-the-next-level) - [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner) ## Related Articles - [Software Developer Salary in Austria [2023]](https://www.wearedevelopers.com/magazine/213-software-developer-salary-in-austria-2023) - [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023) - [Frontend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/195-frontend-developer-salary-in-germany-2023) - [How to Find Tech Jobs in Vienna](https://www.wearedevelopers.com/magazine/292-how-to-find-tech-jobs-in-vienna) - [Frontend Developer Salary in Austria [2023]](https://www.wearedevelopers.com/magazine/225-frontend-developer-salary-in-austria-2023) - [Austria – the most livable place for software developers?](https://www.wearedevelopers.com/magazine/20-austria-the-most-livable-place-for-software-developers)