Senior Java Backend Developer

Job Description We are seeking an experienced Senior Java Backend Developer with 4+ years of experience in modern Java (Java 25), Spring Boot, and event-driven architectures. The ideal candidate will be a hands-on engineer with a DevOps mindset, capable of translating user stories into well-structured technical tasks and delivering high-quality, well-tested, and maintainable code. You will collaborate with cross-functional teams to design, implement, and maintain scalable, event-driven applications and services within a fast-paced, dynamic environment. As developers own the full development lifecycle, you will also be responsible for writing comprehensive automated tests and producing clear documentation to support maintainability and collaboration. Key Responsibilities - Design, develop, and maintain backend services using Java 25, Spring Framework, and Spring Boot. - Implement and optimize event-driven systems, with a strong focus on Solace messaging. - Translate user stories and business requirements into well-defined technical tasks and deliverables. - Collaborate effectively with frontend teams to integrate APIs and ensure seamless end-to-end functionality. - Integrate and secure APIs using OAuth and modern authentication standards. - Work with SQL databases and write optimized queries. - Utilize Git for version control and participate in peer code reviews. - Apply a DevOps mindset to ensure smooth CI/CD pipelines, automation, and cloud deployments (preferably Azure). - Write and maintain automated tests, including unit, component, integration, and end-to-end tests, ensuring high software quality. - Use Test Containers for building robust, reproducible test environments. - Document code, APIs, design decisions, and technical processes to support transparency and maintainability. - Troubleshoot and resolve technical issues in production and non-production environments. Required - Java 25 - Spring Framework, Spring Boot - Event-driven programming (preferably using Solace) - SQL, JMS, OAuth - Git, Azure - Exposure to Kubernetes - DevOps mindset (automation, CI/CD, monitoring) - Proven experience writing high-quality automated tests (unit, component, integration, E2E) - Experience with Test Containers - Ability to translate user stories into technical implementations - Strong attention to detail and commitment to producing high-quality, reliable code - Excellent communication skills and ability to collaborate effectively with diverse, cross-functional teams Preferred - Kafka or other event streaming/messaging platforms - MS Azure Cloud - Ping Identity or similar authentication solutions - Docker and containerization experience - ETL development experience - Familiarity with Helm, MSSQL, Cosmos DB, MongoDB - Exposure to workflow systems (e.g., Camunda, Flowable) - Experience in the healthcare domain - Exposure to Agentic AI development tools such as Claude Code, GitHub Copilot, or similar AI-assisted coding environments Personal Attributes - Strong problem-solving and analytical skills - Proactive and self-directed, with a focus on continuous improvement - Exceptional attention to detail and ability to work efficiently in a fast-paced environment - Collaborative mindset and willingness to share knowledge - Strong sense of ownership and accountability - Habit of maintaining clear, structured documentation for future reference and team use Education - Bachelor's or Master's degree in Computer Science, Engineering, or a related field (or equivalent practical experience) Why Join Waveum - Opportunity to work on cutting-edge, event-driven technologies - Exposure to cloud-native architectures and modern DevOps practices - Dynamic environment focused on technical excellence, collaboration, and end-to-end ownership