Jobs in United States

Job Description

DXC Technology is a global professional services company whose mission is to lead the digital transformation of our clients by advising and guiding them in the application of technology to obtain the best results and increase the competitiveness of their companies. With more than 130,000 professionals and expert technologists, collaborating in more than 70 countries together with an exceptional network of partners, we offer advanced IT services and solutions.

In Spain, we are one of the main leaders in the IT market. We have nearly 8,000 professionals, distributed in thirteen locations, with centers of excellence in cutting-edge technologies such as Cloud, Business Intelligence, AI, or Automation among many others, serving more than 200 customers from all industries in the public and private sectors. We work with leading companies in the country that trust us to guide their digital transformation.

We develop active policies of diversity and inclusion of people with disabilities, and we are proud to have a representation of approximately 49% of female professionals

We're looking for a highly experienced and skilled z/OS Mainframe System Specialist. This critical role involves advanced management, maintenance, and optimization of our z/OS operating environment and related software. You'll not only execute complex technical tasks but also guide and mentor junior team members.

• Lead and Mentor: Provide technical leadership and mentorship to a team of z/OS system programmers.
• Advanced System Management: Architect, install, and configure highly complex z/OS environments and third-party software.
• Critical Support & Recovery: Oversee 24/7 on-call support, drive root cause analysis for critical incidents, and lead disaster recovery initiatives.
• Performance & Optimization: Proactively identify and implement system performance improvements and optimize resource utilization.
• Strategic Project Execution: Lead large-scale projects such as major z/OS upgrades, data center migrations, and complex LPAR/CPU reconfigurations.
• Security & Compliance: Develop and enforce robust security profiles, manage critical system data (SMF, OMVS, zFS), and ensure audit compliance.
• Documentation & Standards: Establish and maintain comprehensive technical documentation, standards, and best practices for the team.

• Bachelor's degree in Computer Science or a related technical field.
• 10+ years of extensive z/OS system programming experience in large, complex mainframe environments.
• Proven experience in a mentorship role.
• Deep expertise in z/OS architecture, internals, system programming, and advanced troubleshooting.
• Mastery of z/OS system commands, utilities, and automation tools.
• Exceptional problem-solving, analytical, and communication skills, with the ability to articulate complex technical concepts.

• Industry certifications (e.g., z/OS System Programmer).
• In-depth knowledge of key z/OS subsystems like JES, IMS, CICS, DB2.
• Proficiency in scripting languages (REXX, Assembler, COBOL).
• Experience with hybrid cloud mainframe integrations.

• Professional development.
• Leading projects in market reference clients.
• Excellent work environment.
• Flexibility and work-life balance.
• Work with leading technologies within the IT sector.
• Access to DXC University with unlimited certifications.
• Social and responsible commitment.
• Stable employment.
• Social benefits.

At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We’re committed to fostering an inclusive environment where everyone can thrive.

DXC does not make offers of employment via social media networks and DXC never asks for any money or payments from applicants at any point in the recruitment process, nor ask a job seeker to purchase IT or other equipment on our behalf.

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