Software Engineer - Mainframe

Unum • Portland, ME

2d

About The Position

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. Are you an asker of questions, a solver of problems, and a challenger of the status quo? Our mission is to provide a differentiated customer experience and exceed the expectations people have of technology at any company — not just insurers. 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.

Requirements

• 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

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 ServiceNow 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

Benefits

• onsite fitness facilities
• generous paid time off
• employee professional development programs
• healthcare benefits (health, vision, dental)
• insurance benefits (short & long-term disability)
• performance-based incentive plans
• paid time off
• 401(k) retirement plan with an employer match up to 5% and an additional 4.5% contribution whether you contribute to the plan or not

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 5,001-10,000 employees