Are you ready for a challenge that will push your Java/Kotlin skills to the next level? This role isn’t just about development – it’s about building the backbone of a payment integration system for an international SaaS platform.
We are looking for 2 Backend Developers (Senior level) to join a small, focused team integrating Worldpay/Payrix into a modern PSP-Integration-Architecture. You’ll work on a product entering the Australian market, collaborating closely with Product Managers and Tech Leads to bring real impact fast.
✅ If your experience and skills match our criteria for the role, apply for this job now. We will love to meet you! *Find out more about our recruitment process here.
Location:
Poland
Employment type:
B2B/Employment Contract
Start:
asap
Hours:
European working time
Mode:
Remote/hybrid/office
Recruitment process:
❇️ Intro chat with Basia – let’s sync up and get to know each other! ❇️ Technical interview with our Tech Lead – a deep dive into your experience, approach, and skills ❇️ Meeting with the client ❇️ Final alignment – team feedback and next steps
In this role you will
➡️ Quickly get onboarded into Java/Kotlin PSP-Integration-Architecture ➡️ Implement adapter patterns for new PSPs with at least two payment methods: BECS Direct Debit & Credit Card ➡️ Work on full payment flows: Tokenization, Payment, Refund, Chargeback ➡️ Collaborate in a small, autonomous team of 2 engineers alongside a Product Manager ➡️ Contribute to architecture discussions and suggest improvements ➡️ Write clean, maintainable code following best practices
Must have
➡️ 4+ years of experience as a Backend JVM Engineer (Java/Kotlin) ➡️ Experience with Spring Boot, Spring Cloud, Hibernate ➡️ Working knowledge of PostgreSQL (AWS Aurora) ➡️ Experience with RabbitMQ and containerized services (Kubernetes/AWS EKS) ➡️ Ability to adapt quickly and learn new architectures ➡️ Strong communication skills in Polish and English ➡️ Comfortable working remotely and independently
Nice to have
➡️ Experience with the spec-kit framework ➡️ Previous exposure to payment integrations or FinTech systems ➡️ Experience in microservices and adapter patterns
