POS Developer

Fuku; Singapore; On-site; SGD 80,000 - 110,000; Full time

Job summary

A leading technology firm based in Singapore is seeking an experienced software developer to design and develop engineering solutions for payment terminal applications. The ideal candidate must possess a degree in Computer Science and a minimum of 5 years of experience in payment terminal software development. Key responsibilities include translating user requirements into maintainable code, participating in EMV certification processes, and collaborating with internal teams to troubleshoot and resolve issues. The role demands strong skills in programming languages such as C, C++, Java, and Python, as well as familiarity with payment protocols like ISO8583.

Qualifications

• Minimum 5 years of proficiency in payment terminal software development.
• Demonstrated expertise in EMV contact and contactless.
• Strong knowledge of various payment implementations and protocols.

Responsibilities

• Design and develop solutions for payment terminal applications.
• Translate user requirements into tested and documented code.
• Participate in EMV L3 certification processes.

Skills

Payment terminal software development

EMV contact and contactless

ISO8583

C

C++

Java

Python

Git

Collaboration with internal teams

Education

Degree in Computer Science or related technology disciplines

Tools

Linux

Android Studio

JIRA

Gradle

Junit

Confluence

Job description

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, facilitating troubleshooting and resolving 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.
• 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, able to work independently or as part of a team with minimal supervision.