Senior Software Engineer - Mainframe

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 an experienced Senior Mainframe Developer to join our enterprise technology team. This role is responsible for designing, developing, maintaining, and supporting mission-critical mainframe applications that drive our core business operations. The ideal candidate will have deep expertise in COBOL, JCL, DB2, and other mainframe tools and technologies, with strong problem-solving skills and the ability to lead technical initiatives.

Key Responsibilities

• Design, code, test, and maintain complex mainframe applications using COBOL, JCL, DB2, VSAM, and IMS.
• Lead development projects and provide technical guidance to junior developers.
• Collaborate with business analysts, QA testers, and cross-functional teams to translate business requirements into scalable mainframe solutions.
• Optimize existing programs for performance, reliability, and maintainability.
• Participate in code reviews, unit testing, integration testing, and user acceptance testing (UAT).
• Analyze and troubleshoot system issues in production and non-production environments.
• Create and maintain technical documentation and ensure compliance with coding standards.
• Work closely with DevOps and infrastructure teams to support application deployment and system upgrades.
  
  

Required Qualifications

• Bachelor’s degree in Computer Science, Information Systems, or related field (or equivalent experience).
• 7 years of hands-on experience in mainframe application development.
• Proficient in COBOL, JCL, IMS, DB2, VSAM, TSO/ISPF.
• Strong knowledge of batch and online processing environments.
• Experience with source control tools (e.g., SCLM, Endeavor, Changeman, Git).
• Familiarity with debugging tools (e.g., Abend-AID, Expeditor, File-AID, DumpMaster, Insync, TraceMaster). BTS (Batch Terminal Simulator) a plus also.
• Solid understanding of software development lifecycle (SDLC) methodologies.
• Strong problem-solving and analytical skills, including the ability to consider cross system/downstream effects of any proposed changes.
• Excellent communication and documentation skills.
• Excellent internal customer focus and communication skills.
  
  

Preferred Qualifications

• Experience with Agile methodologies.
• Exposure to API integration, web services, or middleware technologies.
• Experience in financial services, insurance, healthcare, or other regulated industries.
  
  

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.

$89,400.00-$183,500.00

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