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Updated 2026-06-22 16:00 UTC·© 2025–2026 RoleSuite
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Sr. Mainframe Systems Engineer

Jobgether · US

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Sr. Mainframe Systems Engineer - Remote based in the United States.

This role is focused on leading the stability, performance, and evolution of critical mainframe infrastructure within a complex enterprise environment. You will be responsible for designing, implementing, and maintaining robust z/OS systems that support mission-critical business operations. The position requires deep technical expertise and the ability to solve highly complex system issues while ensuring maximum availability and performance. You will collaborate closely with cross-functional IT, business, and engineering teams to deliver scalable and reliable mainframe solutions. The environment is highly structured and performance-driven, with strong expectations around system uptime, governance, and operational excellence. In addition, you will contribute to architecture decisions, production support strategies, and continuous platform improvements. This is a senior technical leadership role with high impact on enterprise stability and continuity.

Accountabilities:

  • Design, develop, test, and implement mainframe system solutions within a z/OS environment, ensuring reliability, scalability, and performance.
  • Provide ongoing production monitoring, support, and troubleshooting to maintain high system availability and operational continuity.
  • Collaborate with stakeholders across IT, product, analytics, and business teams to translate requirements into effective technical solutions.
  • Monitor project execution against defined timelines, scope, and budgets, providing regular status updates and issue escalation when needed.
  • Participate in architecture design discussions to ensure alignment with enterprise standards and long-term infrastructure strategy.
  • Document technical processes, system configurations, and operational procedures to support knowledge sharing and governance.
  • Mentor and support junior and mid-level engineers, contributing to team capability development and technical growth.
  • Perform technical analysis to support decision-making and improve system efficiency across enterprise platforms.
  • Requirements:

    • Minimum 5 years of experience working with IBM z/Series mainframe environments, including system maintenance, performance tuning, and troubleshooting.
    • Strong z/OS systems programming expertise, including SMPE, DB2, IMS, and CICS.
    • Proven experience in technical problem-solving and delivery of complex infrastructure solutions in enterprise environments.
    • Experience collaborating across technical and business teams to deliver production-ready systems.
    • Strong understanding of system performance, reliability engineering, and operational best practices.
    • Ability to manage technical delivery within defined scope, timelines, and budgets.
    • Strong communication skills and ability to work in distributed, cross-functional teams.
    • Bachelor’s degree in Computer Science, Information Systems, Computer Engineering, or related field (preferred).
    • Preferred: 10+ years of mainframe experience, vendor collaboration experience, and familiarity with 24/7 on-call environments.
    • Ability to work remote with alignment to EST working hours and participate in on-call rotations when required.
    • Benefits:

      • Fully remote work arrangement aligned with U.S. Eastern Time hours.
      • Permanent/direct hire employment stability.
      • Opportunity to work on mission-critical enterprise mainframe systems.
      • Exposure to large-scale, complex infrastructure environments.
      • Collaborative enterprise engineering culture with knowledge-sharing and mentorship opportunities.
      • Career growth within high-impact infrastructure and systems engineering domains.
      • Potential participation in on-call rotations and enterprise-wide technical initiatives.

Software pay context

Based on 7,300 disclosed Software salaries on RoleSuite, the role pays a median of $156K/year, with most offers between $123K and $197K (10th–90th percentile: $101K–$233K).

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