Senior Back-End Software Engineer: Cash Devices

Our client is looking for a highly skilled Software Engineer to join their Cash Devices team on a permanent basis. This role focuses on the development, integration, and support of custom ATM solutions, forming a critical part of the software platform that supports the ATM estate. This is a specialist role combining strong Postilion expertise with SDK‑based Java development, with a primary focus on configuration, integration, and operational stability, rather than pure greenfield software development.

Key Responsibilities

• Develop and maintain custom applications and interfaces using the Postilion SDK
• Build and support Cash Devices applications and device integration solutions (ATM, POS, etc.)
• Customise and extend Postilion functionality to meet business and operational requirements
• Develop and maintain SDK‑based integrations using Java
• Support and upgrade integration drivers between devices a...