Java/Kotlin Software Engineer (Fintech)

TL;DR

Java/Kotlin Software Engineer (Fintech): Designing, implementing, and optimizing server-side architecture for a cross-border payment platform with an accent on API design, database performance, and scalability. Focus on microservices architecture, solving complex concurrency challenges, and ensuring system reliability under heavy traffic in a FinTech environment.

Location: Hybrid in Belgrade, Serbia

Company

hirify.global is a next-generation integrated global payment platform simplifying cross-border payments for millions of users worldwide.

What you will do

• Design, develop, and maintain backend systems for the cross-border payment platform.
• Build and integrate APIs to connect with various payment gateways, banking systems, and financial institutions.
• Implement and maintain processing functions on the Java/Kotlin stack.
• Integrate processing functions into payment flows of payment products.
• Optimize and monitor performance across the global payment processing system.
• Implement automated tests, conduct code review, and perform performance monitoring.

Requirements

• Deep knowledge of Java 17 / Kotlin.
• Experience with Java Spring Boot and Kotlin coroutines.
• 3+ years of backend development experience, with a focus on a FinTech environment.
• Experience with relational databases and database design (SQL queries, functions).
• Experience designing and integrating APIs (REST, SOAP, gRPC).
• Experience with cloud platforms (AWS, Google Cloud, Azure) and containerization technologies (Docker, Kubernetes).
• Experience in microservices and working with a distributed system architecture.
• Experience with CI/CD pipelines and automated deployment processes.

Nice to have

• Knowledge of message brokers (RabbitMQ, Kafka) and asynchronous communication.

Culture & Benefits

• Directly impact millions of users worldwide.
• Benefit from internal mobility, mentoring programs, and continuous learning opportunities.
• Collaborate with colleagues across international hubs.
• Work in an organization guided by strong principles and values.
• Receive competitive compensation, benefits, and flexible work arrangements.