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Tangspac International

POS Developer

Tangspac International
Singapore · Full-time · Not Applicable
Responsibilities

  • Design and develop engineering solutions for payment terminal applications that run across multiple Android-based payment terminal models (Ingenico, PAX, Castles), integrating with multiple host systems using standard protocols (e.g., ISO8583, Web APIs, JSON) and merchant POS systems (ECR – Electronic Cash Register).
  • Translate user requirements into secure, resilient, and maintainable source code that is properly tested, reviewed, and documented.
  • Participate in EMV L3 certification processes with international payment schemes such as Visa, Mastercard, AMEX, UnionPay, JCB, and Discover. Experience with PURE kernel is advantageous.
  • Contribute to the development of test tools and adopt test automation frameworks as part of the development lifecycle.
  • Collaborate with internal teams (QA testers, POS developers, Support, and Certification team) for SDLC activities, facilitate troubleshooting, and resolve issues in both pre- and post-production environments.
  • Facilitate external collaboration for application integration support to NETS partners.

Requirements

*Education and Experience:*

  • Degree in Computer Science or related technology disciplines.
  • Minimum 5 years of proficiency in payment terminal software development and programming experience on embedded POS devices.
  • Demonstrated expertise in EMV contact and contactless, ISO8583 is mandatory.
  • Experience on Linux platform for Key Management System integration with HSM is advantageous.

Skills And Knowledge

  • Excellent and strong knowledge of development with experience in various payment implementations and multiple interface protocols (ISO8583, JSON, HEX data format).
  • Proficient in developing applications using programming languages such as C, C++, Java, and Python.
  • Familiarity and working knowledge of Git, Ingenico, PAX, Android Studio, Gradle, JAVADoc, Junit, Confluence, and JIRA.
  • Self-starter, driven, and adaptable individual who thrives in a dynamic and fast-paced environment, with the ability to work independently or as part of a team with minimal supervision.

Key Skills

Ranked by relevance

android c confluence embedded gradle linux junit java git
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Country Guide

Singapore

High-pay global hub in Asia

Posted
Jan 20, 2026
Type
Full-time
Level
Not Applicable
Location
Singapore
Company
Tangspac International

Industries

Commercial Industrial Machinery Maintenance

Categories

Customer Service

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