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: We are seeking a skilled Mainframe Software Engineer to join our Run team and support mission-critical systems that power our Colonial agent compensation and agent enrollment systems. In this role, you will work with COBOL, JCL, VSAM, DB2, and related tools to maintain, configure, and enhance core Mainframe applications while collaborating in an agile environment. Our work centers on production support: resolving incidents, optimizing system stability, and delivering small to mid-size enhancements, along with contributing to integrations with modern applications and ongoing optimization and modernization efforts. Strong analytical skills, accurate work estimation, and experience with unit testing and continuous integration are essential. While the position follows standard business hours, it also includes on-call rotation and occasional off-hours release support.