Senior Back-End Software Engineer: Cash Devices

SUMMARY:

POSITION INFO:
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 and ATM applications Provide technical support, troubleshooting, and issue resolution for Postilion‑related systems Collaborate with cross‑functional teams including QA, infrastructure, and business analysts Support patching, upgrades, and lifecycle management of ATM software platforms The Ideal Candidate Has Minimum 5 years' experience in a Postilion systems role including exposure to: Postilion Realtime PostCard Postilion Office ATM Application environments Minimum 5 years' current experience with either: Postilion SDK or Java development in integration‑heavy environments Strong understanding of: ISO 8583 messaging and ATM transaction flows Experience with ATM device protocols (e.g. Diebold 912, NCR NDC) Experience working with modern source control systems (Git \/ GitHub), including branching, merge requests, and code reviews Scripting experience (preferably PowerShell or Python) Solid database knowledge; SQL Server experience preferred Strong analytical, troubleshooting, and debugging skills Excellent communication and documentation abilities Experience in banking, fintech, payments, or switching platform environments Education (Minimum) Grade 12 National Certificate \/ Vocational Education (Ideal or Preferred) A relevant tertiary qualification in Information Technology Skills Analytical Skills Attention to Detail Communications Skills Interpersonal & Relationship management Skills Problem solving skills Additional Information Clear criminal and credit record Should you not receive a response from us within one week of your application, your application has unfortunately not been successful. You can visit our website for more vacancies: \/ LinkedIn