About this role
You design and build payment-critical backend services end to end on a modern Java stack, with a high bar for correctness, reliability and security.
What you'll do
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Design and build payment-critical backend services and APIs on Java / Spring Boot.
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Ensure correctness and reliability under load.
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Build robust integrations and event-driven flows.
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Write thorough tests and help maintain high engineering standards.
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Mentor mid-level engineers.
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Requirements
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5+ years in Java backend with Spring Boot.
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Hands-on payments / fintech experience is required — you have worked on real payment or financial-transaction systems.
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Hands-on experience with at least one payment processor or gateway (e.g. MPGS, Cybersource or mada). This is a requirement for this role.
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Strong microservices and REST API design; relational databases.
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Solid grasp of transactional integrity and reliability.
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Containers / CI/CD and strong automated testing.
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AI-augmented engineering — you actively use AI coding tools such as Claude Code in your day-to-day development. This is a requirement for this role.
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Nice to have
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Experience with more than one payment processor / gateway.
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Cloud platforms (OCI, AWS or Azure); Kafka.