Software Engineer - Mainframe

Software Engineer - Mainframe page is loaded## Software Engineer - Mainframe locations:
Chattanooga, Tennessee, USA:
Portland, Maine, USA:
Columbia, South Carolina, USAtime type:
Full time posted on:
Posted Todaytime left to apply:
End Date:
February 13, 2026 (29 days left to apply) job requisition :
834323

Job Posting End Date:
February 12

Our Fortune 500 company is driving a digital transformation and looking for forward-thinking innovators to disrupt how our industry thinks about and uses technology. As one of the world's leading employee benefits providers, we help millions of people gain affordable access to benefits that help them protect their families, their finances and their futures.

We are seeking individuals to join our team of talented IT professionals who share never-ending passion and an unwavering focus on our customer experience. Team members comfortable working in an agile, fast-paced, and delivery-focused environment thrive in our environment where we value an entrepreneurial spirit and those who challenge the status-quo.

Unum is changing, and we’re excited about what’s next. Join us.## General

Summary:

The Mainframe Software Engineer is responsible for delivering medium to large-scale mainframe development work. This role is primarily focused on Grow and Change initiatives, supporting enhancements, new development, and system changes across Colonial mainframe Operations & Engineering (O&E) applications.
The engineer partners closely with Grow teams, business stakeholders, and downstream consumers to design, build, and implement reliable mainframe solutions while maintaining a strong focus on quality, scalability, and controlled production transitions.
** Job Specs:
*** Bachelor’s degree in Computer Science, Information Systems, or equivalent relevant experience
* 4+ years of hands-on experience in a mainframe development environment
* Strong proficiency in COBOL, JCL, DB2, IMS, and VSAM
* Experience supporting both batch and online mainframe applications
* Hands-on experience using BMC/Topaz Workbench for development and debugging
* Experience using Xpediter for testing and troubleshooting mainframe applications
* Familiarity with source control and change management tools (e.g., Endevor, Changeman)
* Understanding of Agile methodologies
* Ability to analyze complex systems, data flows, and dependencies across multiple applications
*
* Principal Duties and Responsibilities:

*** Design, develop, and implement mainframe solutions in support of Grow and Change initiatives, including new development and complex enhancements
* Develop and maintain COBOL programs, JCL, DB2, IMS, and VSAM structures across batch and online environments
* Analyze business and technical requirements to determine appropriate design approaches and implementation strategies
* Collaborate with Grow teams, architects, and business partners to deliver solutions that meet functional and performance expectations
* Perform unit testing and support integrated testing efforts to ensure solution quality and production readiness
* Participate in controlled production releases, including 30-day warranty support periods following implementation
* Provide limited production support during warranty periods, including issue analysis and defect resolution
* Use Service Now to support incident tracking, escalation, and triage when issues arise
* Leverage BMC/Topaz and Xpediter to debug, test, and troubleshoot application behavior
* Contribute to technical documentation and knowledge sharing to support long-term system maintainability
* Adapt to varying levels of modernization work depending on the nature of the request, including APIs or service-based integrations#LI-TS1#LI-MULTI~IN1

Our company is built on helping individuals and families, and this starts with our employees. We want employees to maintain a positive balance, which is why we provide access to the benefits and resources they need to invest in themselves. From our onsite fitness facilities and generous paid time off to employee professional development programs, we are committed to helping employees live and work their best – both inside and outside the office.

Unum is an equal opportunity…