Software Engineer: Back-End III

Capitec Bank Ltd.; Stellenbosch; On-site; ZAR 650,000 - 1,000,000; Full time

Job summary

Capitec Bank Ltd. in Stellenbosch is seeking a highly skilled Software Engineer to join our Cash Devices team.

The role focuses on the development, integration, and support of custom ATM solutions, with emphasis on Postilion SDK configuration and SDK-based Java integrations. This specialist position requires hands-on access to the ATM lab, collaboration with QA, infra and business analysts, and a solid background in Postilion environments, ISO 8583 messaging, and ATM device protocols for ongoing

Qualifications

• Minimum 5 years in a Postilion systems role with exposure to Postilion Realtime, PostCard, Postilion Office and ATM environments.
• Minimum 5 years current experience in 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 with modern source control systems (Git / GitHub), including branching and code reviews.
• Scripting experience (PowerShell or Python).
• Solid database knowledge; SQL Server preferred.
• Strong analytical, troubleshooting, and debugging skills; excellent communication and documentation abilities.
• Experience in banking, fintech, payments, or switching platforms.

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 needs.
• 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.

Skills

Postilion expertise

Java development

ISO 8583

ATM device protocols

Git / GitHub

PowerShell or Python

SQL Server

Analytical skills

Documentation skills

Communication skills

Education

Grade 12 National Certificate / Vocational

Relevant IT tertiary qualification

Tools

Postilion SDK

Java

Job description

Capitec is more than a bank. We exist to simplify banking and help our clients take control of their financial lives. Our focus is on delivering accessible, affordable banking through personal experience, while constantly evolving our technology to support how clients engage with us. Our success is driven by talented, committed teams who take ownership, act with energy, and always put the client first.

Why Choose Capitec

At Capitec, we are guided by our CEO values in everything we do: putting the client first, acting with energy, and taking ownership. We support our people through a strong Employee Value Proposition that focuses on cohesive, high‑performing teams, meaningful learning and growth opportunities, and competitive employee benefits and savings. We are committed to creating an inclusive environment where every team member feels welcomed, valued, supported, and empowered to grow their career.

About the Role

We are looking for a highly skilled Software Engineer to join our 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 Capitec’s 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. The role is based in Stellenbosch, where hands‑on access to the ATM lab environment is required.

Key Responsibilities

• Develop and maintain custom applications and interfaces using the Postilion SDK
• Build and supportCash Devices applications and device integration solutions (ATM, POS, etc.)
• Customise and extendPostilion functionality to meet business and operational requirements
• Develop and maintainSDK‑based integrations using Java
• Support and upgradeintegration 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

Our 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

Capitec Bank is an authorised financial services provider (FSP 46669) and registered credit provider (NCRCP13). Capitec Bank Limited Reg. No: 1980/003695/06