About this role
Payment Solution Engineer at Unlimit. Location: Belgrade, Belgrade, Serbia. Role: owning integrations, managing projects, implementing connections Requirements: 5+ years in payments, banking, or integration engineering; hands-on central bank/clearing integrations; familiarity with payment messaging standards (ISO 20022, MT/MX), REST/SOAP, certificate-based auth; strong communicator. Category: Engineering Seniority: Senior Level Tools: JVM, Kotlin, Java, Spring Boot, Modulith, Javalin, jOOQ, Temporal, REST, SOAP/XML, ISO 20022, SWIFT, MT/MX, Kafka, SQS, SNS, mTLS, PKI, AWS, Docker, Kubernetes, Terraform, GitLab CI/CD, LLMs Commitment: Full Time Workplace: Onsite Languages: English