Senior Mainframe System Administrator

Designs, builds, tests, and deploys cloud application solutions that integrate cloud and non-cloud infrastructure. Can deploy infrastructure and platform environments, creates a proof of architecture to test architecture viability, security and performance.

Who we are:

Accenture in the Philippines is a pioneer in Accenture’s global delivery network. Over the past 30 years, we have expanded our capabilities to become a powerhouse company providing end-to-end technology and business services. As part of Accenture’s global footprint in over 120 countries, covering 40-plus industries, we have been working with the biggest companies in the country and around the globe.

Innovation, a constant at Accenture, enables us to find new ways to stay ahead of our clients’ challenges. Our inclusive, diverse, and strong culture of equality helps us constantly drive innovation in the workplace. By combining our industry expertise and the deep skills of our people with the latest technologies and our uncompromising high-performance standards, we help organizations grow their business and succeed in the digital age.

THE WORK:

We are looking for a seasoned Mainframe Administrator to oversee the operations, maintenance, and performance of our enterprise mainframe systems.

This role requires hands-on experience with IBM z/OS, AS400 (IBM iSeries), and related mainframe technologies. The ideal candidate will ensure system stability, optimize performance, and support business continuity through proactive system management and incident resolution.

The candidate will be potentially responsible for leading a team while actively fostering Mainframe skill development and growth within the group.

Key Responsibilities:

Administer and maintain IBM z/OS and AS400 systems, ensuring optimal performance and availability.

Perform system monitoring, capacity planning, and performance tuning.

Manage system backups, disaster recovery procedures, and high availability configurations.

Implement and maintain system security policies, user access controls, and audit compliance.

Coordinate with application and network teams for system integration and troubleshooting.

Schedule and manage batch jobs.

Apply system patches, firmware updates, and software upgrades.

Maintain detailed documentation of system configurations, procedures, and change logs.

Provide technical support for incidents, root cause analysis, and resolution.

Participate in on-call rotation and support after-hours maintenance activities.

Installing and configuring the mainframe operating system (often z/OS).

Managing system storage, memory, and CPU resources.

Setting up user accounts, security profiles.

Managing middleware and scheduling tools.

Facilitate targeted training initiatives to enhance skill development and drive continuous growth within the department.

Here’s what you’ll need:

Professional Skills and Technical Qualifications:

Bachelor’s degree in computer science, Information Systems, or related field.

Minimum 5 years of experience in mainframe system administration.

Strong knowledge of:

IBM z/OS operating system and subsystems.

AS400 / IBM iSeries administration and operations

IBM Mainframe hardware and software

Experience with CICS and VSAM.

Familiarity with monitoring tools.

Understanding of ITIL processes and change management.

Strong analytical, problem-solving, and communication skills.

Preferred Qualifications:

IBM Certified System Administrator – z/OS or AS400.

Experience with mainframe modernization, virtualization, or cloud integration.

Knowledge of enterprise job scheduling tools (e.g., Control-M, CA-7).

Exposure to DevOps practices in legacy environments.

What’s in it for you?

You will be part of Accenture’s growing community of technology professionals, continually expanding to provide the best services to our clients.

At Accenture, you will be working on innovative projects, while being exposed to the latest emerging technologies and industry’s best practices.

We offer trainings and development programs and courses to help you grow your own tech stack and certifications.

What We Believe

All our leaders are committed to building a better, stronger, and more durable company for future generations to create positive, long-lasting change. Inclusion and diversity are fundamental to our culture and core values. Our rich diversity makes us more innovative and creative, which helps us better serve our clients and our communities.

Our position as partner to many of the world’s leading businesses, organizations and governments affords us both an extraordinary opportunity and a tremendous responsibility to make a difference. Sustainability is one of our greatest responsibilities, which we embed into everything we do and for everyone we work with.

Accenture is committed to providing equal employment opportunities for people with disabilities. Please let your recruiter know if you require reasonable accommodation to enable you to participate in the recruitment process, they will be happy to assist you.