Software Engineer (Backend, Java)

Join Doodle, a leading B2B SaaS platform revolutionizing scheduling and productivity. As a Backend Software Engineer, you'll design, build, and deploy high-performance backend services in Java, while collaborating with cross-functional teams to create elegant technical solutions. You'll thrive in a fast-paced environment that values customer impact and clean systems.

• Design, build, and deploy robust, scalable, high-performance backend services in Java that power core platforms.
• Expose backend endpoints through GraphQL, ensuring efficient data fetching, query optimization, and clean integration with frontend systems.
• Build event-driven solutions on Kafka for seamless data flow, system reactivity, and extreme reliability.
• The Distributed Layer: Practical experience with distributed systems, microservices, and event driven architectures built on Kafka
• The Systems Mind: Strong systems level thinking, with the ability to read, debug, and understand multi language codebases
• The Toolkit: Professional experience designing, developing, and shipping production ready, highly concurrent backend services in Java
• You'll thrive here if you are a builder who values customer impact as much as clean systems
• The Foundation: A Bachelor's in Computer Science, a related technical field, or equal practical experience
• The Infra: Deep knowledge of reactive programming models, cloud infrastructure (AWS or GCP), and containerization (Docker, Kubernetes)
• The AI Edge: Advanced experience using modern AI assisted engineering workflows (Specs, Loops, agentic tools) to safely speed up backend testing, generation, and architecture validation
• The API Layer: Experience designing and serving APIs, ideally GraphQL
• The Fundamentals: A strong foundation in computer science fundamentals: data structures, algorithms, and distributed system design
• The Location: You are based in Germany with full right to work. We cannot sponsor visas or support relocation at this time