We are looking for an experienced Senior Software Engineer – Base24-eps Switch Developer to join a high-performing payments engineering team supporting enterprise banking and financial platforms. The ideal candidate will have strong expertise in Base24-eps payment switch development, real-time transaction processing, and HP NonStop/Tandem environments.

This role involves designing, enhancing, optimizing, and supporting mission-critical payment switch systems operating in highly available production settings.

Requirements

Key Responsibilities
Design, develop, and maintain Base24-eps payment switch applications and interfaces.
Implement and support ISO8583, EMV, POS, and ATM transaction flows.
Develop solutions using:
- TACL
TAL
SCOBOL
COBOL
C/C++
Troubleshoot production issues and provide permanent resolutions.
Perform performance tuning, system optimization, and capacity planning.
Support platform upgrades, migrations, and modernization initiatives.
Collaborate with QA, DevOps, and Infrastructure teams for smooth production releases.
Ensure adherence to security, compliance, and audit standards.





Required Skills & Experience
5–12 years of experience in Base24-eps development and support.
Strong expertise in HP NonStop/Tandem systems.
Deep understanding of:
- ISO8583
EMV
POS/ATM transaction processing
Payment switching systems
Experience integrating with:
- Card schemes
Host banking systems
Third-party payment processors
Solid debugging, troubleshooting, and production support skills.
Experience with performance tuning and high-availability systems.
Familiarity with CI/CD pipelines and deployment automation.
Excellent communication and stakeholder management skills.

Preferred Skills
Experience with Base24 Classic or other payment switch platforms.
Exposure to:
- HSMs
Tokenization
Fraud detection systems
Risk engines
Knowledge of cloud-based payment architectures.
Prior experience working with banking or financial services clients is preferred.

Suitable candidates with robust Base24-eps and Tandem experience are highly preferred.

📌 Senior Software Engineer B Eps Pune (India)
🏢 GSSTech Group
📍 India