Rocket Administrator / Mainframe Modernization Engineer

Compunnel, Inc.; Kansas City (MO); On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

AWS migration experience

CI/CD knowledge

Enterprise modernization exposure

Job summary

Compunnel, Inc. is seeking a Rocket Administrator / Mainframe Modernization Engineer to support a large-scale modernization initiative. The role requires hands-on Rocket Software administration, Linux/Unix expertise, and COBOL experience to migrate legacy applications to cloud environments.

The ideal candidate will collaborate with development teams, participate in deployments, and ensure system reliability during the migration lifecycle, including after-hours work as needed.

Qualifications

• 3+ years of hands-on Rocket Software administration experience.
• Experience with Micro Focus Enterprise Server / related tooling.
• Strong COBOL knowledge in enterprise mainframe environments.
• Proficient Linux/Unix system administration.
• Experience supporting production environments and incident resolution.
• Experience with deployment, environment management, and release activities.
• Excellent analytical, troubleshooting, and problem-solving skills.
• Ability to work independently while managing multiple CST-hours priorities.
• Excellent communication and collaboration skills.
• Preferred: experience migrating mainframe apps to AWS.
• Familiarity with JCL, CICS, VSAM, and IBM z/OS environments.
• Experience with DevOps practices, automation, and CI/CD pipelines.

Responsibilities

• Administer, configure, maintain, and support Rocket Software environments.
• Support modernization by assisting with migration of legacy mainframe applications to cloud infrastructure.
• Perform system installations, upgrades, patching, deployments, and ongoing maintenance.
• Monitor system performance and implement corrective actions for platform stability.
• Troubleshoot production incidents and provide operational support for enterprise apps.
• Collaborate with development teams during code promotions, deployments, and releases.
• Support testing, cutover, go-live, and post-deployment stabilization activities.
• Maintain technical documentation, procedures, and system configuration records.
• Partner with internal engineering and implementation teams to support modernization.
• Participate in after-hours or weekend deployment activities as required.
• Ensure system reliability and operational readiness throughout migration lifecycle.

Skills

Rocket Software

Micro Focus ES

COBOL

Linux/Unix

Production Support

Deployment

Troubleshooting

Communication

Tools

AWS

CI/CD pipelines

DevOps

Z/OS knowledge

Job description

Rocket Administrator / Mainframe Modernization Engineer

07/29/2026

Contract

Active

Job Description:

Job Summary We are seeking a Rocket Administrator / Mainframe Modernization Engineer to support a large-scale enterprise mainframe modernization initiative. The ideal candidate will have hands-on experience administering Rocket Software or Micro Focus Enterprise Server environments while supporting the migration of legacy COBOL applications to modern cloud infrastructure. This role requires strong expertise in Linux/Unix administration, production support, and application modernization within enterprise environments.

Key Responsibilities

• Administer, configure, maintain, and support Rocket Software environments.
• Support application modernization initiatives by assisting with the migration of legacy mainframe applications to cloud-based infrastructure.
• Perform system installations, upgrades, patching, deployments, and ongoing environment maintenance.
• Monitor system performance, identify issues, and implement corrective actions to maintain platform stability.
• Troubleshoot production incidents and provide operational support for enterprise applications.
• Collaborate with development teams during code promotions, deployments, and release activities.
• Support testing, cutover, go-live, and post-deployment stabilization activities throughout modernization projects.
• Maintain technical documentation, operational procedures, and system configuration records.
• Partner with internal engineering teams and implementation partners to support modernization efforts.
• Participate in scheduled after-hours or weekend deployment activities when required.
• Ensure system reliability, availability, and operational readiness throughout the migration lifecycle.

Required Qualifications

• 3+ years of hands-on experience administering Rocket Software environments (1–2 years may be considered for highly qualified candidates).
• Experience with Micro Focus Enterprise Server, Enterprise Developer, or related application modernization platforms.
• Strong understanding of COBOL applications and enterprise mainframe environments.
• Experience supporting mainframe modernization or migration initiatives.
• Strong Linux/Unix system administration experience.
• Experience supporting production environments and resolving complex technical issues.
• Experience with system administration, deployment, environment management, and operational support.
• Strong analytical, troubleshooting, and problem-solving skills.
• Ability to work independently while managing multiple priorities in an operational support environment.
• Ability to support core Central Time (CST) business hours.
• Excellent communication and collaboration skills.

Preferred Qualifications

• Experience migrating mainframe applications to AWS.
• Knowledge of JCL, CICS, VSAM, and IBM z/OS environments.
• Experience with application deployment, release management, and production cutover activities.
• Experience supporting enterprise application modernization programs.
• Experience working with distributed systems and cloud infrastructure.
• Hands-on experience with AWS services.
• Prior experience working directly with Rocket Software implementations.
• Experience in Retail, Financial Services, or other enterprise-scale environments.
• Familiarity with DevOps practices, automation, and CI/CD pipelines.