Senior Backend Engineer - Postilion ATM Integrations

ATS Client is seeking a Senior Back-End Software Engineer with strong Postilion expertise to enhance ATM software platforms. You will focus on configuration, integration and operational stability rather than pure greenfield work.

The ideal candidate brings 5+ years in Postilion environments and hands-on experience with SDK-based Java integrations, ISO 8583 messaging, and device protocols for ATM and cash devices. Banking/fintech exposure is valued.

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