Lead Platform Engineer – ACH Mainframe

Fifth Third Bank

. Serve as a mainframe Subject Matter Expert (SME) .

Posted 9/24/2026full-timeRemote • United StatesSenior💰 $82,100 - $172,500 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in Mainframe Technology, specifically in CICS, Cobol, and DB2, while managing and supporting ACH processing platforms like Fiserv PEP+. Proficient in ensuring compliance with financial industry regulations and effectively collaborating with cross-functional teams for system enhancements.

Highest-signal resume keywords

Mainframe Subject Matter ExpertCICS ProficiencyCobol ProficiencyDB2 ProficiencyACH NACHA File Handling

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Mainframe Technology DesignACH Processing Platform ManagementIntegration of Third-Party SolutionsApplication Development SkillsTechnical Support for Mainframe SystemsCapacity and Performance AnalysisOperational Availability ManagementDocumentation of Technical SystemsInfrastructure PlanningMainframe Operating System Knowledge

Soft Skills

Analytical SkillsProblem-Solving SkillsVerbal Communication SkillsWritten Communication SkillsTeam Collaboration

Tools & Technologies

Fiserv PEP+ACH Processing PlatformsNACHA FilesSanctions SolutionsMainframe Development Tools

Certifications & Qualifications

Technical DegreeBachelor’s Degree in Computer ScienceBachelor’s Degree in Information Technology

Industry Keywords

Financial Industry RegulationsACH TransactionsInternational ACH TransactionsFedline Advantage ACH KnowledgeMainframe Domain Expertise

About the role

Key responsibilities & impact

Serve as a mainframe Subject Matter Expert (SME)
Design, develop, test, configure, and provide technical support for mainframe technology
Manage product lifecycles to assure operational availability
Gather data and analyze capacity and performance
Oversee daily operations and maintenance of the Fiserv ACH processing platform, PEP+
Use CICS, Cobol, and DB2 expertise to maintain platform efficiency and effectiveness
Handle ACH NACHA files in compliance with industry standards and regulations
Manage and support integration of third-party sanctions solutions for international ACH transactions
Identify, troubleshoot, and resolve platform and integration issues
Collaborate with cross-functional teams on system enhancements and upgrades
Maintain documentation of processes, procedures, and system configurations
Ensure compliance with financial industry regulations and standards
Provide training and support to internal teams
Participate in infrastructure planning and maintain technology roadmaps
Coordinate cross-departmental mainframe application migration projects
Coordinate vendors, build and conduct tests, and track project progress
Establish, maintain, document, and publish mainframe language and development tool directions
Form productive networks with internal and external customers, vendors, and industry peers
Ensure documentation of complex technical systems for operational handover

Requirements

What you’ll need

Technical Degree or related work experience
Bachelor’s degree in Computer Science, Information Technology, or a related field
Minimum of 7 years of experience managing and supporting ACH processing platforms, specifically Fiserv PEP+
Proficiency in CICS, Cobol, and DB2
Strong understanding of ACH NACHA file handling
Experience integrating third-party sanctions scanning and screening solutions for international ACH transactions (IATs)
Hands-on experience managing Fiserv’s PEP+ application
Fedline Advantage ACH knowledge
Knowledge and experience in multiple disciplines within the mainframe domain
Strong application design and development skills
Expert knowledge of the Mainframe Operating System and Hardware
Excellent analytical and problem-solving skills
Strong verbal and written communication skills
Ability to work collaboratively in a team environment

Benefits

Comp & perks

Incentive compensation plan based on company, line of business, and/or individual performance
Comprehensive benefits supporting physical, financial, emotional, and social well-being
Benefits for employees and their families
Equal employment opportunity and inclusive culture