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On Call Operating System Developer Jobs in Phoenix, AZ

Install, configure, and maintain IBM z/OS operating systems. * Perform system upgrades, migrations ... Knowledge of DevOps practices on mainframe (CI/CD pipelines). * Exposure to Zowe and APIs on z/OS.

Install, configure, and maintain IBM z/OS operating systems. * Perform system upgrades, migrations ... Knowledge of DevOps practices on mainframe (CI/CD pipelines). * Exposure to Zowe and APIs on z/OS.

The System Engineer focuses on troubleshooting, maintaining, and stabilizing complex electro ... Provide technical guidance and on-the-job support to maintenance technicians and operators. * Step ...

Sr System Engineer V

Chandler, AZ

$102K - $140K/yr

Job Title : Sr System Engineer V Job Location : Chandler, AZ (ONSITE) Job Type : Full-Time * We are ... Participate in on-call rotation and provide after-hours support. * Create and maintain ...

The System Engineer focuses on troubleshooting,maintaining, and stabilizing complex electro ... Provide technical guidance and on-the-job support to maintenance technicians and operators. * Step ...

Sr. Midrange Engineer - IBMi

Phoenix, AZ · On-site

$103K - $142K/yr

Maintain and deploy IBMi operating system upgrades, cumulative PTF packages, group PTFs, and ... Participate in 24/7 on-call support rotation as required. * Perform basic IBM Power System hardware ...

Sr. Midrange Engineer - IBMi

Phoenix, AZ

$103K - $142K/yr

Maintain and deploy IBMi operating system upgrades, cumulative PTF packages, group PTFs, and ... Participate in 24/7 on-call support rotation as required. * Perform basic IBM Power System hardware ...

Day Department: IT Systems Operations Monday - Friday 7:30am - 4pm, on-call rotation Must reside in ... Core domains include Server Operating Systems (Windows, Linux, Red Hat), Active Directory/Entra ID ...

Unisys Mainframe Developer

Phoenix, AZ

$48.75 - $62.50/hr

In a dynamic, fast paced environment the IBM zTPF operating system is the central hub for all ... Possess programming expertise in TPF C/C++ and BAL for the zTPF environment in order to develop and ...

Boxi Admin Developer (Full Time) Role Experience in SAP Business Objects tools with a focus on ... Strong experience with infrastructure environments (e.g. operating system, hardware, data center ...

Systems Network Engineer Required: TS/SCI w/ Full Scope Poly Clearance RATE RANGE: $80.00/hr - 88 ... Maintain/update local and shared Operating System (Windows and Linux) configurations including ...

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On Call Operating System Developer information

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How much do on call operating system developer jobs pay per hour?

As of Jun 23, 2026, the average hourly pay for on call operating system developer in Phoenix, AZ is $48.51, according to ZipRecruiter salary data. Most workers in this role earn between $41.06 and $56.83 per hour, depending on experience, location, and employer.

What is the difference between On Call Operating System Developer vs System Software Engineer?

AspectOn Call Operating System DeveloperSystem Software Engineer
Primary FocusMaintaining, debugging, and updating operating systems during on-call shiftsDesigning, developing, and testing system software and tools
Work EnvironmentTypically in tech companies or data centers, often on-call for urgent issuesOffice or remote, involved in development projects
Required SkillsOS internals, troubleshooting, scripting, real-time problem solvingProgramming, system architecture, software development
CertificationsRelevant certifications like Linux Foundation or Microsoft certificationsComputer science degrees, certifications in software development

While both roles involve working with system-level software, the On Call Operating System Developer primarily focuses on maintaining and troubleshooting operating systems during on-call periods, whereas the System Software Engineer is involved in designing and developing system software in a broader development environment.

What is the highest paying call center job?

The highest paying call center jobs are typically supervisory or managerial roles, such as Call Center Manager or Operations Manager, which can offer salaries exceeding $60,000 annually. Specialized roles like technical support or sales management may also command higher pay, especially with relevant experience and certifications.

What are the key skills and qualifications needed to thrive as an On Call Operating System Developer, and why are they important?

To thrive as an On Call Operating System Developer, you need deep expertise in low-level programming, operating system architecture, and debugging, often backed by a degree in computer science or related fields. Proficiency with languages like C/C++, debugging tools (e.g., GDB, WinDbg), and familiarity with version control systems such as Git are typically required. Strong problem-solving abilities, quick decision-making, and effective communication are vital soft skills for responding to urgent production incidents. These capabilities are crucial to rapidly diagnose, address, and prevent system-level failures, ensuring system stability and uptime.

What are On Call Operating System Developers?

On Call Operating System Developers are specialized software engineers responsible for maintaining, troubleshooting, and improving operating systems, often in real-time or emergency scenarios. They are typically available outside of regular business hours to address critical bugs, security vulnerabilities, or system outages. Their work ensures that operating systems remain stable, secure, and performant, especially when unexpected issues arise. These developers need deep technical expertise in OS internals and must be able to quickly diagnose and resolve complex problems.

What are the 7 types of OS?

The seven main types of operating systems are batch OS, time-sharing OS, distributed OS, network OS, real-time OS, mobile OS, and embedded OS. Each type is designed to meet specific computing needs, such as multitasking, real-time processing, or managing networked devices, which are relevant skills for an on call operating system developer.

Which IT job is in demand now?

On Call Operating System Developers are in demand due to the need for maintaining and troubleshooting complex systems across various industries. Skills in Linux, Windows, scripting, and remote support are highly valued, and certifications like CompTIA Linux+ or Microsoft Certified Solutions Expert can enhance job prospects.

How does the on-call aspect of an Operating System Developer role impact work-life balance and daily routines?

As an On Call Operating System Developer, you may be required to respond to critical system issues or outages outside of regular business hours. This can mean unpredictable work schedules during on-call periods, but teams often rotate responsibilities to help maintain work-life balance. It's important to have strong time management skills and clear communication with your team to ensure coverage and minimize disruptions. Many organizations provide compensatory time off or additional pay for on-call duties, and being on call offers valuable experience in troubleshooting high-stakes, real-world problems.

How much do OS devs make?

On-call operating system developers typically earn between $80,000 and $150,000 annually, depending on experience, location, and the complexity of the systems they work on. Senior roles or those with specialized skills in kernel development or low-level programming can command higher salaries. Compensation may also include benefits such as bonuses, stock options, or flexible schedules.
What cities near Phoenix, AZ are hiring for On Call Operating System Developer jobs? Cities near Phoenix, AZ with the most On Call Operating System Developer job openings:
Mainframe ZOS System Programmer)

Mainframe ZOS System Programmer)

Kyndryl

Phoenix, AZ

$79K - $152K/yr

Full-time

Medical, Dental, Retirement, PTO

Posted 16 days ago


Job description

Who We Are

At Kyndryl, we design, build, manage and modernize the mission-critical technology systems that the world depends on every day. So why work at Kyndryl? We are always moving forward - always pushing ourselves to go further in our efforts to build a more equitable, inclusive world for our employees, our customers and our communities.

The Role

The Mainframe z/OS System Programmer is responsible for the installation, customization, maintenance, and optimization of IBM z/OS operating systems and associated system software. This role ensures the stability, performance, security, and availability of mission-critical mainframe environments, supporting large-scale enterprise applications.

* This role requires employees to live in or around the Phoenix, AZ area. You will be responsible to be onsite 3 days a week. We will consider candidates who are willing to relocate to the area.

Responsibilities:

System Administration & Maintenance:

  • Install, configure, and maintain IBM z/OS operating systems.
  • Perform system upgrades, migrations (e.g., z/OS version upgrades), and apply maintenance (PTFs, APARs, RSUs).
  • Manage IPL processes, system initialization, and configuration (PARMLIB, PROCLIB, SYS1 datasets).
  • Monitor system health and performance using tools such as RMF, SMF, SDSF.

Subsystem Support:

  • Install, configure, and support key subsystems:
    • JES2/JES3
    • TSO/E, ISPF
    • USS (Unix System Services)
    • RACF (in coordination with security teams)
  • Work closely with DB2, CICS, IMS, MQ, and Storage teams for integration and support.

Performance & Capacity Management:

  • Analyze system performance metrics and implement tuning improvements.
  • Support capacity planning and resource optimization (CPU, memory, I/O).
  • Evaluate hardware upgrades (e.g., CPU/MIPS growth, z-series enhancements).

Problem Management & Troubleshooting:

  • Diagnose and resolve system-related issues, including system abends and failures.
  • Perform root cause analysis for outages and major incidents.
  • Work with IBM and vendors on problem determination and fixes.

Automation & Scheduling:

  • Develop and maintain automation using tools such as:
    • System REXX, CLIST
    • SA z/OS, NetView
  • Support job scheduling tools (e.g., CA7, Control-M where applicable).

Security & Compliance:

  • Support system-level security configurations aligned with RACF policies.
  • Ensure compliance with audit, regulatory, and enterprise security standards.
  • Assist in vulnerability remediation and patching activities.

Change & Release Management:

  • Execute changes through ITIL-based processes (ServiceNow or equivalent).
  • Prepare implementation plans, backout procedures, and validation steps.
  • Support weekend maintenance windows and IPL activities.

Documentation:

  • Create and maintain technical documentation, including:
    • System configurations
    • Standard Operating Procedures (SOPs)
    • Disaster Recovery plans

Your Future at Kyndryl

Every position at Kyndryl is an opportunity to be part of something bigger. We're committed to your growth and development-because when you succeed, we succeed. In this role, you'll gain exposure to global projects, cutting-edge technologies, and strategic initiatives that shape the future of businesses worldwide. Your career path doesn't stop here. Whether you want to deepen your expertise, broaden your skills, or move into leadership, we'll support you with learning programs, mentorship, and opportunities to take on new challenges. At Kyndryl, your future is yours to shape.

Kyndryl currently does not require employees to be fully vaccinated against COVID-19, however, if you are hired to work at a client, customer, or partner location, you may be required to show proof ofvaccinationto align with their respective COVID-19vaccinationpolicies. Those who believe they are eligible may apply for a medical or religious accommodation prior to the start of employment.

Who You Are

You're good at what you do and possess the required experience to prove it. However, equally as important - you have a growth mindset; keen to drive your own personal and professional development. You are customer-focused - someone who prioritizes customer success in their work. And finally, you're open and borderless - naturally inclusive in how you work with others.

Required Qualifications

  • 5+ years of experience in mainframe system programming (z/OS).
  • Strong hands-on knowledge of z/OS, JES2/JES3, TSO/ISPF, SDSF, USS/OMVS, SMP/E.
  • Experience with large-scale environments (multi-LPAR, Parallel Sysplex).
  • Knowledge of vendor products (Broadcom, IBM, BMC).
  • IBM certifications (preferred but not mandatory).

Preferred Experience

  • Exposure to mainframe modernization initiatives (APIs, hybrid cloud integration).
  • Experience with z/OSMF and modern interfaces.
  • Knowledge of DevOps practices on mainframe (CI/CD pipelines).
  • Exposure to Zowe and APIs on z/OS.

The compensation range for this position in the US is $79,920 to $152,160 based on a full-time schedule. Your actual compensation may vary depending on your geography, job-related skills, and experience. For part time roles, the compensation will be adjusted appropriately. The pay or salary range will not be below any applicable state, city, or local minimum wage requirement.

This position will be eligible for Kyndryl's discretionary annual bonus program, based on performance and subject to the terms of Kyndryl's applicable plans. You may also receive a comprehensive benefits package which includes medical and dental coverage, disability, retirement benefits, paid leave and paid time off. Note: if this is a sales commission eligible role, you will be eligible to participate in a sales commission plan in lieu of the annual discretionary bonus program. Applications will be accepted on a rolling basis.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Being You

Diversity is a whole lot more than what we look like or where we come from, it's how we think and who we are. We welcome people of all cultures, backgrounds, and experiences. But we're not doing it single-handily: Our Kyndryl Inclusion Networks are only one of many ways we create a workplace where all Kyndryls can find and provide support and advice. This dedication to welcoming everyone into our company means that Kyndryl gives you - and everyone next to you - the ability to bring your whole self to work, individually and collectively, and support the activation of our equitable culture. That's the Kyndryl Way.

What You Can Expect

With state-of-the-art resources and Fortune 100 clients, every day is an opportunity to innovate, build new capabilities, new relationships, new processes, and new value. Kyndryl cares about your well-being and prides itself on offering benefits that give you choice, reflect the diversity of our employees and support you and your family through the moments that matter - wherever you are in your life journey. Our employee learningprograms give you access to the best learning in the industry to receive certifications, includingMicrosoft, Google, Amazon, Skillsoft, and many more. Through our company-wide volunteering and giving platform, you can donate, start fundraisers, volunteer, and search over 2 million non-profit organizations. At Kyndryl, we invest heavily in you, we want you to succeed so that together, we will all succeed.

Get Referred!
If you know someone that works at Kyndryl, when asked 'How Did You Hear About Us' during the application process, select 'Employee Referral' and enter your contact's Kyndryl email address.


Kyndryl logo

About Kyndryl

Sourced by ZipRecruiter

Kyndryl is a market leader that thinks and acts like a start-up. We design, build, manage, and modernize the mission-critical technology systems that the world depends on every day.

Industry

It services

Company size

10,000+ Employees

Headquarters location

New City, NY, US

Year founded

2021

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