Mainframe Software Engineer

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 claims operations. 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.

Job Specs

• Core Technologies: COBOL, JCL, VSAM and DB2
• Development & Support Focus: 60% Maintenance/Production Support, 20% Enhancements, 20% New Development (small-scope features, integrations)
• Systems Supported: Mainframe Application, Batch + Online/Transactional processing and Integrations with external systems (FastForms, AMM, etc.)
• Tools & Platforms: ServiceNow, Rally, and SCLM. Opportunity to work with BMC Topaz (future adoption planned)
• Standards & Processes: Mainframe Enterprise Standards, and peer code reviews (both giving and receiving). Upcoming 2026 expectations to validate code from other teams pushing changes into DSS

Principal Duties & Responsibilities
Production Support & Incident Resolution:

• Diagnose and resolve batch job abends, production incidents, and system interruptions.
• Analyze data issues, resource constraints, logic errors, and limit-exceed conditions.
• Identify root causes and implement corrective actions to maintain system availability and reliability.
• Respond quickly and effectively to urgent issues impacting business operations.

Enhancements & Small-Scale Development

• Design, code, test, and implement enhancements typically under 200–300 hours.
• Support integrations between DSS and new/existing applications.
• Develop new processes or modify existing processes based on business requirements.
• Collaborate with cross-functional teams to understand system impacts upstream and downstream.

Integration & Cross-Platform Collaboration

• Support DSS integration with external systems and web-based applications (FastForms, AMM, etc.).
• Participate in discussions about architecture, data flow, and requirements across platforms.
• Contribute to modernization efforts such as optimizing outdated jobs and reducing recurring incidents.

Quality, Standards & Peer Review

• Follow Unum's Mainframe Enterprise coding standards and best practices.
• Conduct peer reviews of code written by Unum engineers and contracted Mainframe developers.
• Ensure high-quality, stable code with appropriate test coverage.

Agile Participation & Team Collaboration

• Work within an Agile environment, using Rally for sprint planning and tracking.
• Provide input during grooming, planning, stand-ups, and retrospectives.
• Collaborate closely with Run team members, technical leads, business partners, and QA.

Continuous Improvement & Modernization Opportunities

• Identify opportunities to optimize frequently failing or high-impact jobs.
• Participate in efforts to streamline workflows, improve performance, and reduce incidents.

~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 employer, considering all qualified applicants and employees for hiring, placement, and advancement, without regard to a person's race, color, religion, national origin, age, genetic information, military status, gender, sexual orientation, gender identity or expression, disability, or protected veteran status.

The base salary range for applicants for this position is listed below. Unless actual salary is indicated above in the job description, actual pay will be based on skill, geographical location and experience.

$73,300.00-$150,500.00

Additionally, Unum offers a portfolio of benefits and rewards that are competitive and comprehensive including healthcare benefits (health, vision, dental), insurance benefits (short & long-term disability), performance-based incentive plans, paid time off, and a 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. All benefits are subject to the terms and conditions of individual Plans.

Company
Unum