L2/L3 Payments Support Engineer - ACI/MTS

VIO; Charlotte (NC); Hybrid; USD 90,000 - 130,000; Full time

Job summary

A leading company in Information Services is seeking an L2/L3 Payments Support Engineer to ensure the integrity of high-volume payment processing systems. This critical role involves collaborating with infrastructure and application support teams to maintain service levels and address incidents, focusing on technologies like ACI Base24 and Modular Transaction Switch.

Qualifications

• 7+ years in Payments Support within enterprise banking environments.
• Experience with Base24 Classic / UP Framework and MTS.
• Proficiency with ISO 8583 / XML / JSON payment messages.

Responsibilities

• Monitor transaction flows and resolve payment disruptions.
• Deep-dive analysis on production incidents involving Base24 and MTS.
• Support change control processes for deployments.

Skills

Payments Support

Problem Solving

Collaboration

Debugging

SQL

Tools

Splunk

AppDynamics

ELK

Control-M

Job description

VIO is seeking a L2/L3 Payments Support Engineer - ACI/MTS to join a team in Charlotte, NC (Need Onsite day 1, hybrid 3 days from office).

Job Description:

As part of our dedicated payment operations support team, we are seeking a highly skilled L2/L3 Payments Support Engineer with hands-on experience in ACI Base24 / MTS (Modular Transaction Switch) platforms. The role is critical to ensuring the resilience, integrity, and continuous availability of high-volume payment processing systems including ACH, Wire, Card Payments, Real-Time Payments (RTP), and Digital Wallet transactions. Candidate will collaborate with application support, infrastructure, and payment operations teams to maintain service levels and respond to critical issues, while working closely with vendors.

Responsibilities:

Level 2 Responsibilities:

• Monitor transaction flows (ATM, POS, Online, RTP) and proactively resolve payment disruptions.
• Handle incidents, service requests, and escalations within defined SLAs.
• Coordinate with infrastructure teams for patch management, capacity issues, or system upgrades.
• Support change control processes for deployments across non-prod and prod environments.

Level 3 Responsibilities:

• Deep-dive analysis on production incidents involving Base24, MTS, or switching components.
• Review and optimize transaction routing, message parsing (ISO 8583), and settlement interfaces.
• Debug source code (if applicable) or configuration scripts and interface logs.
• Drive problem management and post-incident reviews with full RCA documentation.
• Liaise with ACI or third-party vendors for code-level fixes and updates.
• Collaborate on compliance and security tasks including PCI-DSS, fraud alert handling, and audit support.

Requirements:

• 7+ years in Payments Support, including L2/L3 roles within enterprise banking environments.
• Experience with Base24 Classic / UP Framework.
• Knowledge of Modular Transaction Switch (MTS).
• Proficiency with ISO 8583 / XML / JSON payment messages.
• Understanding of ACH, Wire, and RTP flows.
• Experience with Middleware and interfaces (e.g., MQ, APIs, TCP/IP).
• Scripting skills in Shell/PERL.
• SQL and relational database knowledge.
• Familiarity with tools like Splunk, AppDynamics, ELK, Control-M, etc.

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Information Technology

Industries

• Information Services

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