Infrastructure Engineer Senior to Principal

Job Posting End Date

04-02-2026

Please note the job posting will close on the day before the posting end date.

Job Summary

We are looking for a motivated candidate who has a solid background in mainframe development or support and a strong desire to deepen their expertise within the MACSS ecosystem. The ideal individual need to be a strong independent contributor that also thrives in a collaborative environment.

The candidate must be able to communicate effectively across technical and business teams, and take ownership of tasks that span production support, testing, application troubleshooting, and regional coordination. Strong analytical ability, attention to detail, and the capability to manage multiple priorities are key. Experience supporting MACSS or similar CIS applications is highly valuable, and familiarity with MACSS functional areas (Billing, Credit, Orders, Messaging etc.) is a plus. We are seeking candidates who are customer focused and demonstrate leadership in problem-solving, continuous improvement initiatives.

Job Description

What you’ll do:

We’re seeking a Mainframe Application Support Engineer to provide end-to-end expertise, management, and support for AEP’s Customer Information System (MACSS), including DB2 archiving, RACF access/authorization, Install/1 support, region coordination, Endevor migrations, MACSS printing functions, and Disaster Recovery. In this role, you’ll coordinate across Customer Applications, Infrastructure, business SMEs, and vendors to plan and prioritize support, upgrades, outages, and enhancements; execute and monitor MACSS code releases; lead technical troubleshooting across MACSS functional areas (Billing, Credit, Orders, Messaging etc.); and collaborate on mainframe tool upgrades. The ideal candidate brings strong proficiency in COBOL, JCL, CICS, and hands-on experience with Mainframe, Broadcom Endevor, DB2, Install/1, Fresche Solutions Testbase, VERX and IBM Optim Archive, with a continuous improvement mindset and a “nice to have” understanding of CIS interfaces and processes.

Responsibilities include the following: 

• Provide overall expertise, management, and support of AEP’s Customer Information System (MACSS): This includes supporting the MACSS application as a whole and all the individual MACSS functional areas as well as the MACSS business subject matter expertise related to the applications and systems. The job requires close coordination with AEP IT Customer Applications and Infrastructure teams, MACSS BU, and vendors in providing daily support as well as planning for and prioritizing upgrades, outages and enhancements.
• Region coordination to facilitate communications for development, testing, implementation, administration and support for all MACSS regions utilized by all customer application teams.
• Perform and monitor all Endevor migrations for the MACSS functional areas.
• Provides advanced technical support and analysis, operation, administration, and troubleshooting activities.
• Adhere to and advocate change management policies, incident management and trouble response scenarios.
• Lead, facilitate, and coordinate work activities of others within the work group, team or department.
• Prepare and or update technical documentation including procedures, manuals, reports and standards.                                   
• Provide training and mentoring, as well as work direction, to others on the team and work partners.
• Support technical functions that pertain to MACSS application and functional areas.
• Provide expertise and guidance on projects for mainframe tools being upgraded, this includes any changes needed in the MACSS application as well as application testing.
• Identify and lead continuous improvement opportunities within the MACSS Application and Support team.
• Would be nice to have some level of understanding of AEP’s CIS systems interfaces and processes.
• Provide leadership and support for Business Continuity / Disaster Recovery activities and initiatives.
• Manage all assets such as Business Applications, Batch Jobs, Service Accounts, and Knowledge Base articles.
• Perform all ticket tracking and review through ServiceNow.
• Assist with audit related activities as required
• Other job duties as assigned.

Key Functions:

• The DB2 Archive tool/process

• MACSS RACF access/authorization issues

• MACSS MH system testing and project testing (I think this role should move to L3…)

• Install/1 support

• MACSS migration and region support

• MACSS Endevor Support

• MACSS printing functions

• MACSS Disaster Recovery

Technical Skills: