Card Payments Software Engineer

ANTAS PTE. LTD.; Singapore; On-site; SGD 70,000 - 90,000; Full time

Job summary

A leading financial technology provider in Singapore is looking for a skilled Software Engineer to develop and support payment switching systems, particularly BASE24-Classic and BASE24-eps. The successful candidate will be responsible for programming in C, C++, and more, within a fast-paced, onsite environment. Strong analytical and troubleshooting skills are crucial. This role requires experience with payment systems, including ISO 8583 standards, and eligibility to work in Singapore.

Qualifications

• Candidates must have a degree or diploma in Computer Science, Engineering, or a related field.
• Proven experience with BASE24-Classic and/or BASE24-eps payment switch systems is essential.
• Strong programming skills in C, C++, TAL, TACL, COBOL85, and SCOBOL are required.

Responsibilities

• Design, develop, enhance, and support applications on BASE24-Classic /BASE24-eps platforms.
• Perform development and maintenance using various programming languages.
• Work on payment switch functions including authorization, routing, and settlement.

Skills

Programming in C

Programming in C++

TAL

TACL

COBOL85

SCOBOL

Analytical skills

Troubleshooting

Communication

Education

Degree/Diploma in Computer Science

Tools

JIRA

HP NonStop / Tandem Guardian

Job description

Job Summary

We are seeking a skilled Software Engineer with hands‑on experience in payment switching systems, particularly BASE24-Classic and BASE24-eps. The role involves software development, testing, implementation, and production support of mission‑critical payment systems for banking and financial services clients in Singapore.

Key Responsibilities

• Design, develop, enhance, and support applications on BASE24-Classic /BASE24-eps platforms.
• Perform development and maintenance using C, C++, TAL, TACL, COBOL85, and SCOBOL.
• Work on payment switch functions including authorization, routing, settlement, journaling, and interfaces.
• Develop and support transaction processing using ISO 8583 (1987/1993) message standards.
• Implement scheme mandates and regulatory requirements for card payment networks.
• Support system installation, migration, upgrades, and production deployments.
• Perform unit testing, SIT, UAT support, and post‑production issuer resolution.
• Participate in regression, performance, and load testing activities.
• Collaborate with internal teams, banks, and vendors to ensure system stability and service availability.

Requirements

• Degree/Diploma in Computer Science, Engineering, or a related field.
• Proven experience in BASE24-Classic and/or BASE24-eps payment switch systems.
• Strong programming skills in C, C++, TAL, TACL, COBOL85, SCOBOL.
• Hands‑on experience with HP NonStop / Tandem Guardian environment.
• Knowledge of ISO 8583 standards and EFT transaction processing.
• Experience with payment simulators such as VISA VTS, MasterCard MDFS/MAS, FINSIM, or BOSS.
• Familiarity with Windows and Linux operating systems.
• Good analytical, troubleshooting, and communication skills.
• Ability to work effectively in a fast‑paced, onsite environment.
• Candidates must be legally eligible to work in Singapore.

Preferred Skills

• Experience supporting Singapore or APAC banking clients.
• Exposure to production support and regulatory‑driven enhancements.
• Experience working in Agile environments and tools such as JIRA.