We are looking for a skilled Java Backend Engineer to join our Fiat Payments team. You will be responsible for integrating and maintaining banking and card payment channels across multiple markets, building the infrastructure that connects our platform to global financial networks.
Responsibilities
Design and develop integrations with banks, card networks (Visa/Mastercard), and payment service providers
Build and maintain high-availability, high-concurrency payment processing systems
Develop core payment modules including channel routing, clearing, reconciliation, and settlement
Collaborate with cross-functional teams (product, risk, compliance) to deliver reliable payment solutions
Participate in code reviews, system design discussions, and technical troubleshooting
Continuously optimize system performance, stability, and scalability
Requirements
3–5 years of Java backend development experience
Proficiency in Spring Boot, MyBatis, and common distributed system components (Redis, MQ, etc.)
Experience integrating with third-party payment channels, banking APIs, or card payment systems
Understanding of payment flows: authorization, clearing, settlement, reconciliation
Fluency in English is required to be able to coordinate with overseas partners and stakeholders. Additional languages would be an advantage.
Experience at fintech platforms is a strong plus
Experience with high-concurrency, high-availability distributed system design
Nice to Have
Experience with Visa/Mastercard acquiring or card issuing systems
Knowledge of PCI-DSS or financial compliance standards
Crypto industry background
