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Staff Software Engineer (Mainframe)

UniGroup
United StatesRemotefull_timeVerifiedPosted 12 May 2026

About the role

**This position is fully remote. In order to qualify for this role with UniGroup, you must live in one of the following states: Missouri, Illinois, Arkansas, Georgia, Tennessee, North Carolina, Texas, Florida, or Indiana.

Preference will be given to local candidates.**


Position Overview
The Staff Software Engineer (Mainframe) plays a critical role in designing, developing, and supporting UniGroup’s core business applications running in a mainframe environment. This position combines deep technical expertise with hands-on leadership/mentorship, guiding engineers through complex legacy systems while supporting long-term modernization initiatives.
This is an ideal role for a senior engineer who enjoys solving challenging problems in established systems, mentoring others, and influencing technical direction across mission critical applications.
What You’ll Do
Technical Leadership & Mentorship
• Provide day-to-day technical leadership/mentorship to a team of mainframe engineers, ensuring high-quality delivery and adherence to engineering best practices
• Mentor junior and mid-level engineers through code reviews, pair programming, and structured knowledge transfer sessions
• Serve as a subject matter expert for COBOL, DB2, JCL, TSO, and core business processes
• Lead small workstreams or technical initiatives, ensuring clear requirements, strong documentation, and alignment with architectural standards
• Guide the team through complex debugging, performance tuning, and production support scenarios
Core Engineering Responsibilities
• Design, develop, test, and support software applications within a mainframe environment
• Write, maintain, and debug COBOL programs supporting order processing, billing, and transportation systems
• Support CI/CS environments and applications using DB2 as the primary database
• Utilize JCL and TSO to manage batch processing, job execution, and system operations
• Use mainframe utilities such as QMF and SCLM to support development, testing, and source control
• Partner with modernization teams to validate and support work related to mainframe transformation efforts
• Troubleshoot and resolve production issues, ensuring system stability and minimal business disruption
• Participate in code reviews and testing efforts to ensure accuracy, performance, and reliability
• Maintain technical documentation and contribute to team knowledge repositories
• Collaborate with analysts, product partners, and business stakeholders to translate requirements into technical solutions
What You’ll Bring
Required Qualifications
• Bachelor’s degree in Computer Science, Information Systems, or equivalent professional experience
• 8+ years of experience in software development or application support within a mainframe environment
• Hands-on experience with COBOL, DB2, JCL, and TSO
• Demonstrated ability to troubleshoot, test, and validate changes in legacy systems
• Experience supporting production systems in a CI/CS environment
• Strong communication skills with the ability to guide, influence, and mentor engineers
• Proven ability to lead technical efforts and contribute to team planning and execution
Preferred Qualifications
• Experience participating in or supporting mainframe modernization or migration initiatives
• Familiarity with mainframe utilities such as QMF and SCLM
• Prior experience in a lead, senior, or mentorship-focused engineering role
• Exposure to distributed systems, cloud platforms, or integration patterns supporting modernization
Why Work at UniGroup
At UniGroup, we build technology that supports iconic brands like United Van Lines and Mayflower Transit, while investing in the people who power our platforms. Our engineering teams work on meaningful, enterprise-scale systems that support a nationwide network of agents, customers, and internal partners.
We offer
• Competitive compensation and a comprehensive benefits package
• Medical, dental, and vision insurance with multiple plan options
• 401(k) retirement plan with company match
• Paid time off, company holidays, and paid parental leave
• Hybrid work environment that supports flexibility and work-life balance
• Opportunities to work with modern technologies while contributing to legacy modernization
• A collaborative, people-first culture that values mentorship, continuous learning, and thoughtful innovation
Work Authorization
• Candidates must be legally authorized to work in the United States on a permanent basis
• UniGroup is unable to provide visa sponsorship or employment authorization support now or in the future


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UniGroup

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