Mainframe System Administrator (Z/Os & Z/Vm)

TL;DR

Mainframe System Administrator (z/OS & z/VM): Managing, supporting, and optimizing z/OS and z/VM environments to ensure high system availability and operational stability with an accent on proactive monitoring, patching, and incident resolution. Focus on collaborating with cross-functional teams to implement best practices and maintain accurate system documentation.

Location: Mexico City, Distrito Federal, Mexico

Company

hirify.global runs and reimagines the mission-critical technology systems that drive advantage for the world’s leading businesses.

What you will do

• Ensure system availability by proactively monitoring and supporting z/OS and z/VM mainframe environments.
• Maintain patch compliance, coordinating system updates and changes to minimize business impact and downtime.
• Use mainframe management tools to analyze performance, identify risks, and resolve incidents effectively.
• Collaborate with cross‑functional teams to support business operations and implement operational best practices.
• Document system changes and maintain accurate records to support audits, compliance, and governance requirements.

Requirements

• 5+ years of hands‑on experience supporting z/OS and z/VM systems in mainframe environments.
• Proficiency in z/OS and z/VM administration and troubleshooting.
• Experience using mainframe management tools for monitoring, performance analysis, and incident resolution.
• Familiarity with patch management, incident response, and compliance processes.
• Strong analytical, problem‑solving, and troubleshooting skills.
• Intermediate English proficiency, required for technical documentation, communication with global teams, and incident reporting.

Nice to have

• Bachelor’s degree in computer science, Information Technology, or a related field (or equivalent professional experience).
• Experience working in regulated or large enterprise environments.
• Knowledge of ITIL‑based incidents and change management practices.
• Ability to work independently while collaborating across infrastructure, application, and operations teams.

Culture & Benefits

• Dynamic, hybrid-friendly culture that supports your well-being and empowers you to grow.
• Be Well programs are thoughtfully designed to support your financial, mental, physical, and social health.
• Impactful work that powers the systems our customers rely on every day.
• Powerful tools to chart your career path, personalized development goals aligned with your ambitions, and continuous feedback to keep you inspired and on track.
• Access to cutting-edge learning opportunities—from certifications with Microsoft, Google, and Amazon to coaching and hands-on experiences.
• A culture that values empathy, restless learning, and a devotion to shared success.