Software Engineer ACI Base24 (Classic)

  • Atlanta, GA
  • Posted 4 days ago | Updated 4 days ago

Overview

On Site
Hybrid
Depends on Experience
Accepts corp to corp applications
Contract - W2

Skills

ACI
Base24
Classic

Job Details

Job Title: Software Engineer ACI Base24 (Classic)
Location: Atlanta, GA (Onsite/Hybrid)

Job Description:
Seeking an experienced Software Engineer with strong hands-on expertise in ACI Base24 Classic for ATM/POS payment processing. This role includes configuring Base24 components, supporting daily operations, enhancing interfaces, and ensuring stable transaction processing for high-volume financial environments.

Key Responsibilities:

  • Configure, customize, and maintain ACI Base24 Classic components for ATM/POS transaction processing.
  • Work with Base24 interfaces including payments switches, host systems, and card networks.
  • Troubleshoot production issues related to transaction routing, authorization, BIN routing, and terminal management.
  • Monitor system performance and support 24x7 operational environments.
  • Develop enhancements and scripting modifications where required for Base24 applications.
  • Collaborate with network, payment operations, and infrastructure teams to support stable transaction flow.

Required Skills:

  • 5 10+ years of experience working with ACI Base24 Classic in a banking or payments environment.
  • Strong knowledge of card authorization, terminal management, PIN translation, and payment switching.
  • Hands-on experience with Base24 configuration, parameter updates, and deployment.
  • Strong debugging and problem-solving capability for live transaction issues.
  • Experience with Tandem/HP NonStop, TAL/TACL, COBOL, C, or similar environments.

Preferred:

  • Experience integrating Base24 with networks such as VISA, Mastercard, STAR, NYCE, Interlink, etc.
  • Knowledge of ISO 8583 message specifications.
  • Familiarity with ATM/POS compliance standards and transaction security.
  • Strong communication and documentation skills.
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