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# Senior Software Engineer II - Payin Platform - Backend (Java)

- **Company:** Wise Australia Investments
- **Location:** London, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Unit Testing, Code Review, Relational Databases, Spring Framework, Python (Programming Language), Strategies of Testing, Backend, Kotlin, Integration Tests, Apache Kafka
- **Published:** July 7, 2026
- **Apply:** https://uk.indeed.com/viewjob?jk=118623f3b4eb5dec

## About the Role

What do you need?:

 * 5+ years of experience in Java, Kotlin, Python or Go
 * Strong experience with Spring framework, relational databases, distributed and concurrent systems (Kafka)
 * Great cross-team communication - Can discuss and champion complex, technical topics with a wide and varied audience, from fellow engineers to non-technical stakeholders across lots of teams.
 * You enjoy writing testable code and you have experience in testing strategies, such as unit testing, integration testing
 * You believe in and follow best coding practices, code reviews and open feedback
 * You have great communication skills and the ability to articulate complex, technical concepts to non-technical audience
 * You strive to improve our team culture and processes
 * A strong product mindset and passion for customer experience, you prioritise work with the customers in mind and make data-driven decisions to fix customer pain-points
 * Being able to work independently on customer problems is a key to success - you take responsibility and end-to-end ownership of your projects: drive and own them to make sure we hit the goals we want to achieve



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