POS Developer

QUESSCORP SINGAPORE PTE. LTD.; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

A technology solutions company in Singapore seeks a skilled developer for payment terminal applications. The role involves designing engineering solutions, translating user requirements into secure code, and collaborating across teams for SDLC activities. Candidates must have a degree in Computer Science and at least 5 years of relevant development experience, especially in payment terminals and EMV protocols.

Qualifications

• Minimum 5 years of proficiency in payment terminal software development.
• Ability to demonstrate expertise on EMV contact and contactless.
• Experience on Linux platform for Key Management System integration.

Responsibilities

• Design and develop engineering solutions for payment terminal applications.
• Translate user requirements into secure and maintainable source code.
• Collaborate with internal teams for SDLC activities and issue resolution.

Skills

Payment implementations knowledge

C programming

C++ programming

Java programming

Python programming

Git

Android Studio

JUnit

Confluence

JIRA

Education

Degree in Computer Science or related Technology disciplines

Tools

Ingenico

PAX

Gradle

Job description

Key Responsibilities

• Design and develop engineering solutions for payment terminal applications that runs across multiple Android-based payment terminal models with integration to multiple host systems using standard protocols (e.g., ISO8583, Web APIs, JSON) and merchant POS systems (ECR – Electronic Cash Register).
• Translate user requirement into secure, resilient and maintainable source code that properly tested, reviewed and documented.
• Experience in EMV L3 certification processes with international payment schemes: Visa, Mastercard, AMEX, UnionPay, JCB, and Discover. Experience with PURE kernel would be advantageous.
• Contribute on development test tool and adopt test automation frameworks as part of the development lifecycle.
• Collaborate across several internal teams (QA testers, POS developers, Support and Certification team) for SDLC activities and facilitate troubleshooting and perform issues resolution on pre and post-production issues.
• 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 device and ability to demonstrate expertise on EMV contact and contactless, ISO8583 are mandatory.
  • Experience on Linux platform for Key Management System integrate with HSM would be advantageous.
• Skills and Knowledge
  • Excellent and strong knowledge of development with experience in various payment implementations with multiple interfaces protocol (ISO8583, JSON, HEX data format)
  • Comfortable in developing applications with programming languages such as C, C++, Java and Python.
  • Familiar and have working knowledge in using Git, Ingenico, PAX , Android Studio, Gradle, JAVADoc, Junit, Confluence and JIRA.
  • Self-starter, driven and adaptable individual that thrives in a dynamic & fast paced environment and ability to work as a team player or individual with little supervision.