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Golang Engineer (Card Payments)

Company

Castle Island Ventures

Location

singapore, singapore

Posted

July 20, 2026

Position Overview

Job Responsibilities Core Business Development
  • Design, develop, and maintain backend services for the company's card payment and card issuing platform using Golang.
  • Participate in the development of key business modules, including card issuing, card accounts, authorization, clearing & settlement, transaction processing, billing, rewards, and benefits systems.
Card Transaction Lifecycle Development
  • Design and implement end-to-end card transaction processing workflows.
  • Develop and maintain critical payment flows, including Authorization, Reversal, Capture, Refund, and Reconciliation.
  • Ensure transaction accuracy, reliability, and consistency throughout the payment lifecycle.
Architecture Design & Optimization
  • Participate in system architecture design and technical solution planning.
  • Contribute to legacy system analysis, migration, and modernization initiatives.
  • Continuous...

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