Senior Backend Engineer (Kotlin)

International product & tech driven scale-up with a long business track record is looking to expand. Do you want to work on a complex and unique international auctioning platform as a Kotlin engineer on the backend while working with state-of-the-art solutions?

• Architect, develop, and maintain Kotlin-based microservices handling inventory management, auction listings, bids, payments and financial operations
• Write clean, testable code following functional programming principles
• Convert business requirements into high quality functionality in the platform
• Work with Azure SQL, Redis and CosmosDB databases, optimising queries and data models for performance and reliability
• Contribute to event-driven architectures that power our real-time auction platform
• Build and deploy services within our Azure cloud-native infrastructure
• Develop and maintain CI/CD pipelines using Azure DevOps and Argo
• Implement observability and monitoring solutions to ensure system health and performance, using Prometheus, Loki & Grafana
• Work with containerised applications and Kubernetes deployments, using AKS
• Collaborate with local and international teams to deliver high-quality, scalable solutions
• Participate in architectural discussions and contribute to platform-level patterns
• Partner with the product managers, designers, senior engineers and architects to turn business needs into technical solutions
• Share knowledge and support continuous improvement within the team

• Strong JVM proficiency with Kotlin with minimum 6 years in server-side development
• Experience with microservices, and event-driven architectures
• Solid understanding of cloud-native architecture principles, with hands-on Azure experience preferred
• Familiarity with CI/CD practices and tooling (Azure DevOps preferred)
• Experience with relational databases (Azure SQL)
• Interest to work in functional programming paradigms (Arrow)
• Exposure to containers, Kubernetes, and Infrastructure-as-Code concepts (Terraform)
• Experience with performance analysis and tuning, from databases to network calls & resource management
• An understanding of cost management of resources in a cloud environment
• Solid understanding of security principles and data privacy
• Solid understanding of architecture patterns in a distributed system

• Independent and varied role within an entrepreneurial and innovative organization
• Competitive salary of € 85.000 - 90.000 per year
• Good pension scheme
• Bonus scheme (up to 1 gross monthly salary per year)
• 25 vacation days
• Laptop and iPhone
• Training opportunities
• Hybrid flexible work options
• A professional team where hard work is combined with humor ✨