The Opportunity: We, at Flywire, are looking for an experienced Senior Software Engineer. As a Senior Engineer, you will be a contributor to our billing and payments product that supports the money movement of hundreds of millions every day. This is a full-stack role that requires a blend of deep technical proficiency and the ability to navigate a variety of client requirements. You will be expected to work independently most of the time while maintaining a collaborative presence with other teams across the globe. The ideal candidate for this position is a person that thrives in taking on new challenges. You will be joining a small team in Australia that will be in charge of designing new functionality and improving our current core capabilities. We are looking for an engineer who balances a pragmatic design approach with a commitment to building quality, secure, and scalable products.Key ResponsibilitiesFeature Development: Design, build, and maintain high-quality, testable, and maintainable code within our billing and payments system. You will be expected to work independently at times, making informed technical and architectural decisions while using product goals as your "North Star".AI-Leveraged Exploration: Proactively uses AI tools to analyse existing codebases, answer architectural questions, and accelerate your understanding of complex system interdependencies is a must.Quality & Security: Ensure that security, quality, scaling, and performance are never sacrificed for speed.System Diagnostics: Regularly use diagnostic tools to resolve issues and answer technical questions quickly and calmly. Stakeholder Engagement: Communicate effectively across engineering and product teams. You should be comfortable joining client meetings to assist in gathering requirements or troubleshooting complex problems.Collaborative Problem Solving: Participate in solutioning meetings, comfortably debating the pros and cons without ego.Technical RequirementsJava Proficiency: Strong, professional experience in Java development is a must.Database Knowledge: Deep understanding of relational databases (MySQL) and Object-Oriented concepts.Core Stack (Nice to Have): Experience with Spring Core, Spring MVC, and Hibernate.Front-End Skills: Familiarity with HTML, CSS, JavaScript, and JSP (Java Server Pages).Modern Workflow: You must be comfortable using AI-assisted development tools to enhance productivity and writing comprehensive test cases for all new code.