Must be based in Sydney - Hybrid 3 days in the officePermanent Role - Paying up to $180k + SuperAbout the Role: We’re looking for a highly skilled Senior Kotlin/Java Developer to join our Sydney-based team on a permanent basis. In this role, you’ll be responsible for developing and maintaining enterprise applications, designing robust integration endpoints, and ensuring seamless communication across web services. You’ll work across the full development stack, from front-end interfaces to backend logic and databases.What You’ll Do: Design, develop, and maintain enterprise-grade applications using Kotlin and JavaBuild and optimize integration endpoints for seamless system communicationWork across front end, backend, and database layersDevelop and enhance RESTful APIs, GraphQL services, and microservicesOptimize application performance, security, and scalabilityCollaborate with cross-functional teams to deliver high-quality solutionsData ETL (Extract-Transform-Load) experience is a plusWhat You Bring: 8+ years of experience in Kotlin and Java developmentExpertise in web services, integration patterns, and API developmentProficiency in Spring Boot frameworkStrong database experience (SQL & NoSQL) and data modeling skillsExperience with cloud platforms (AWS, Azure, or GCP) and DevOps practicesAbility to write clean, scalable, and maintainable codePlease apply or reach out to Seniority level Mid-Senior levelEmployment type Full-timeJob function Engineering and Information TechnologyIndustries Airlines and Aviation#J-18808-Ljbffr