Service Delivery Center, Senior Mainframe Engineer

Other locations:
Anywhere in Region

Date:
Oct 21, 2026

Requisition

At EY, we’re all in to shape your future with confidence.

We’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go. Join EY and help to build a better working world.

We are a professional services firm with a business unit dedicated to the financial services marketplace. Our teams have been at the forefront of every event that has reshaped and redefined the financial services industry. If you have a passion for rallying together to solve the most complex challenges in the financial services industry, come join our dynamic team!

We help our clients transform. Together we are changing the way they interact with their Customers, Employees and Partners alike. We are modernizing their applications, creating new ones and driving business efficiency across their ever-changing platform and channel infrastructures. Everything we do centers around this simple story.

The opportunity

As a Technology Service Delivery Senior, you’ll be based in our Service Delivery Center, which is made up of high-performing US-based colleagues who work closely with our experienced advisory professionals. We deliver Technology project-based work and managed services to our clients. Here, you’ll work as part of a project team and will be responsible for the design, build/configuration, testing, analysis, delivery and support of Technology solutions.

This position is fast-paced and ever-changing, which means you’ll need to be a flexible self-starter and be able to manage changing priorities and learning new and rapidly changing technology solutions.

We are looking for highly technical Mainframe Engineers who will develop and maintain high-volume, business-critical production platforms for our financial services clients. The team leverages COBOL, CICS, DB2, VSAM, JCL, and related mainframe technologies to maintain and enhance enterprise applications in both batch and online environments. This is a hands‑on, delivery-focused role that spans the full application lifecycle.

Your Key Responsibilities

The goal is to help clients solve complex business problems by delivering robust, high-volume mainframe solutions. You will perform detailed analysis for maintenance and enhancement projects, design, deploy, and support software releases into production, identify root causes and implement technical design solutions, and own assigned work streams independently from design through production support.

Skills and attributes for success

• Working knowledge and hands‑on experience in COBOL, CICS, DB2, VSAM, and JCL.
• Working knowledge and hands‑on experience with IBM Utilities, FileAID, Endevor, SQL, Debuggers, Schedulers, and IOMs.
• Perform detailed analysis for maintenance and enhancement projects across batch and online environments, and design, deploy, and support software releases into production.
• Identify the root cause of problems and implement technical design solutions, including handling high‑severity/critical production issues.
• Employ strong data security skills to keep customers’ information safe, and execute thorough unit, functional, and regression testing.
• Own assigned work streams independently from design through production support, with clear documentation.
• Collaborate across business, systems, operations, and vendor teams, and mentor less‑experienced team members where appropriate.
• Willingness and ability to travel up to 30% of the time.

To qualify for the role you must have

• BS/BA or advanced degree, or equivalent experience preferred.
• At least 3 years of relevant experience in software development for business‑critical, enterprise‑wide applications.
• Hands‑on…