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Team Tagline
About the role
CapitalSage Technology Limited is a financial services company based in Nigeria. They are seeking a POS Terminal Developer to build software that runs on POS and embedded terminal devices — the application a merchant uses when taking a payment. The role requires working on constrained hardware, over unstable networks, with device peripherals, and ensuring transaction certainty.
Required Skills
Preferred Skills
Responsibilities
- Design, develop and maintain applications for supported terminal devices using Android with Java and/or Kotlin.
- Integrate terminal and device SDKs, hardware and peripherals.
- Integrate with backend APIs and implement reliable communication between terminal and remote systems.
- Build secure device authentication and activation, and secure local storage.
- Design for unstable or limited network conditions: timeouts, retries, recovery, and status verification.
- Ensure repeated user actions and communication failures never cause duplicate processing.
- Build comprehensive application and device logging, and support versioning, updates and release management.
- Optimise for terminal hardware and resource constraints, and resolve device-integration and production issues.
- Participate in testing, quality assurance and certification activities.
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