Java Backend Engineer – Fiat Payment Channels

📋 Description

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• Design and build integrations with banks, card networks (Visa/Mastercard)
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• Build high-availability, high-concurrency payment systems
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• Develop core modules: channel routing, clearing, reconciliation, settlement
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• Collaborate with product, risk, and compliance teams on solutions
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• Participate in code reviews, design discussions, and troubleshooting
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• Optimize performance, stability, and scalability
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🎯 Requirements

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• 3–5 years of Java backend development experience
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• Spring Boot, MyBatis, Redis and MQ
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• Experience integrating with third-party payment channels or banking/card APIs
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• Understanding of authorization, clearing, settlement, and reconciliation
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• Fluent English required; additional languages a plus
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• Fintech platform experience is a plus
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• Experience with high-concurrency, high-availability distributed design
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