Senior Backend Developer

📋 Description

• Design, build, and evolve high-performance backends in Kotlin and Spring Boot.
• Own full feature lifecycle from design to production monitoring.
• Develop checkout flows: authorization, capture, refunds.
• Architect microservices with event-driven patterns (Kafka, queues).
• Expand integration with PSPs, acquirers, and payment gateways.
• Apply OWASP and PCI-DSS practices for security and privacy.

🎯 Requirements

• 4+ years of professional backend development.
• Kotlin with Spring Boot and payment processing concepts.
• Solid understanding of microservices architectures; experience building and operating.
• Proficiency with PostgreSQL and data modeling for financial systems.
• Containerization and cloud infra (Docker, Kubernetes, AWS or GCP).
• Unit, integration, and contract testing practices; fluent English.