Mainframe Systems Programmer

As a Mainframe Systems Programmer at Peraton, you will handle a variety of tasks, which include installing and configuring z/OS, CICS, DB2, and MQ Series, as well as maintaining and upgrading these systems. You'll contribute to client transitions and ensure operational excellence by performing software maintenance and providing critical support for incidents. Your role will not only focus on technical contributions but also mentoring junior personnel, fostering a collaborative environment.

Peraton requires candidates to have at least five years of experience in supporting mainframe environments, along with a deep understanding of z/OS fundamentals. Other qualifications include proficiency in assembler language, familiarity with job control language (JCL), and an understanding of database management systems like DB2. An ideal candidate will also possess strong problem-solving skills and be adept in performance tuning and security features of z/OS.

In the position of Mainframe Systems Programmer at Peraton, your role will include supporting new client business transitions by ensuring smooth migrations and engagements. You'll be responsible for leading technical contributions and assisting in configuring systems tailored to meet new clients’ needs. This may involve working directly with customers to resolve any technical issues that arise during the transition.

Candidates for the Mainframe Systems Programmer position at Peraton should have technical skills in z/OS architecture and installations, proficiency in assembler language, and experience with SMP/E for z/OS software management. Familiarity with performance tuning, debugging, and database systems like DB2 is essential. Additionally, experience with Unix and knowledge of z/OS network software will be beneficial for troubleshooting network connections.

At Peraton, the work environment for a Mainframe Systems Programmer is collaborative and dynamic, allowing you to participate in both daytime and off-shift problem resolutions. The role requires flexibility and a dedication to on-call support while engaging in various projects. You will be part of a team that tackles challenging problems while fostering innovation and productivity, ultimately contributing to critical national security missions.

When answering this question, highlight your years of experience working with z/OS. Describe specific projects you've managed, your familiarity with the architecture, and any challenges you've overcome in systems programming. Mention your role in installations, upgrades, or maintenance refreshes to demonstrate your expertise.

For this question, provide detailed methodologies you employ while troubleshooting. Discuss your approach to identifying the root cause of problems, your familiarity with performance tuning, and tools you use for diagnostics. Providing examples from past experiences can help illustrate your systematic approach to problem-solving.

Share your methods for prioritizing tasks, perhaps by severity level, such as SEV1 or SEV2 incidents. Explain how effective communication and ticket management systems like JIRA or ServiceNow help you maintain organization and efficiency under pressure.

This is a great opportunity to discuss your experience as a mentor. Share specific instances where you've guided junior team members, whether through formal training sessions or informal support. Emphasize the importance of sharing knowledge and how it contributes to team performance and success.

Elaborate on your techniques for performance tuning within z/OS. Reference specific tools or scripts you've used, and share success stories where tuning led to significant improvements, underscoring your analytical skills and technical knowledge.

Employ this question to showcase your commitment to continuous learning. Discuss industry publications, online courses, or professional organizations you participate in. This demonstrates that you are proactive and engaged in your field, keeping your skills fresh and relevant.

When responding, identify typical challenges like performance bottlenecks, software compatibility issues, or managing on-call demands. Talk about how you've tackled these challenges and the lessons learned that have improved your professional development.

Share details about a complex project, outlining your role and the objectives. Discuss the technical challenges you faced, your solutions, and the results. Focus on your leadership role and how you coordinated with various stakeholders to ensure success.

Discuss your familiarity with change management processes, including ticketing systems and documentation. Emphasize the importance of thorough planning and collaboration with cross-functional teams to minimize disruptions and maintain system stability.

For this question, explain your understanding of z/OS security mechanisms. You could mention specific security protocols, tools you've used for auditing, or experiences with compliance. This will showcase your awareness of critical security considerations in mainframe operations.