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On Call Operating System Developer Jobs in Phoenix, AZ

USAA

Mainframe CICS Systems Programmer Senior

Phoenix, AZ · On-site +1

$54.50 - $69.50/hr

... Information Control System (CICS) on mainframe z/OS operating systems. At USAA, CICS is a ... Developer Support: Providing technical support to application development teams, which includes ...

USAA

Mainframe CICS Systems Programmer Senior

Phoenix, AZ · On-site +1

$53.25 - $68/hr

... Information Control System (CICS) on mainframe z/OS operating systems. At USAA, CICS is a ... Developer Support: Providing technical support to application development teams, which includes ...

Lancesoft

Service Engineer

Mesa, AZ · On-site

$41.61/hr

Troubleshoot hardware, firmware, and operating system issues, escalating when appropriate ... Participate in on-call rotations and provide support during extended coverage periods as required.

Nlets

Systems Engineer

Phoenix, AZ · On-site

Position Summary The System Engineer supports, administers, deploys, and maintains the operation of ... Provide essential on-call support for our 24/7/365 environment. Regular and predictable attendance ...

Kyndryl

IMS system programmer

Phoenix, AZ · On-site +1

$54.50 - $69.50/hr

The Role Mainframe IMS System Programmer: The Role: We are seeking a highly skilled Mainframe IMS ... Who You Are Required Qualifications: * 7+ years of experience with IBM z/OS operating system

Kyndryl

IMS system programmer

Phoenix, AZ · On-site

$54.50 - $69.50/hr

The Role Mainframe IMS System Programmer: The Role: We are seeking a highly skilled Mainframe IMS ... Who You Are Required Qualifications: * 7+ years of experience with IBM z/OS operating system

IDEALFORCE LLC

Server Team Technician/Sr()

Phoenix, AZ · On-site

Client is currently seeking a Senior System Engineer in Phoenix, AZ, with an emphasis on AWS cloud infrastructure work, Microsoft Windows operating system, TCP/IP design, and Leading IT projects ...

Kyndryl

Mainframe ZOS System Programmer

Phoenix, AZ

$79K - $152K/yr

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.

Kyndryl

Mainframe ZOS System Programmer

Phoenix, AZ · On-site +1

$79K - $152K/yr

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.

Symbotic

System Engineer

Buckeye, AZ · On-site

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 ...

Symbotic

System Engineer

Buckeye, AZ · On-site

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 ...

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All JobsOn Call Operating System Developer JobsOn Call Operating System Developer Jobs in Phoenix, AZ

On Call Operating System Developer information

See Phoenix, AZ salary details

$11

$48

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

As of Jul 14, 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 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.

Can you be on call as a software engineer?

On-call responsibilities are common for on call operating system developers and other software engineers working in roles that require 24/7 system availability. These positions often involve monitoring, troubleshooting, and resolving issues outside regular working hours, and may require familiarity with remote access tools and incident management processes.

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 engineer makes $500,000 a year?

Senior software engineers, especially those working in high-demand fields like cloud computing, AI, or cybersecurity, can earn $500,000 or more annually, often through a combination of base salary, bonuses, and stock options. Achieving this level typically requires extensive experience, advanced skills, and working at large tech companies or startups with significant funding.

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.

Are OS developers in demand?

On-call operating system developers are in demand due to the ongoing need for system stability, security, and performance improvements across various industries. Skills in low-level programming, kernel development, and familiarity with tools like C and Linux are highly valued, and employment opportunities are expected to grow with advancements in technology and infrastructure. Continuous learning and certifications can enhance job prospects in this field.

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:
On Call Operating System Developer jobs near you
Principal Systems Engineer - IAM

Principal Systems Engineer - IAM

Early Warning Services, LLC

Scottsdale, AZ • On-site

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 13 days ago

Job description

At Early Warning, we've powered and protected the U.S. financial system for over thirty years with cutting-edge solutions like Zelle®, Paze℠, and so much more. As a trusted name in payments, we partner with thousands of institutions to increase access to financial services and protect transactions for hundreds of millions of consumers and small businesses.
Positions located in Scottsdale, San Francisco, Chicago, or New York follow a hybrid work model to allow for a more collaborative working environment.
Candidates responding to this posting must independently possess the eligibility to work in the United States, for any employer, at the date of hire. This position is ineligible for employment Visa sponsorship.
Overall Purpose
As a Principal Engineer in the Identity and Access Management (IAM) team, you will play a pivotal role in designing, implementing, and maintaining robust security solutions to safeguard organizational assets. This position is a technical expert involved in developing the strategy and standards of Early Warning Services technology platforms and ensures excellence in quality of outputs across multiple teams. Leveraging your practical knowledge in Public Key Infrastructure (PKI), identity and access management platforms, privileged access management, active directory, and network protocols, you will contribute to the development and execution of IAM strategies. Responsible for partnering with cross functional teams and providing input to a broad range of initiatives. Ensures system health is optimized to support internal and external customers.
Essential Functions
  • Collaborate with technology and business leaders to lead the development and implementation of IAM strategies aligned with organizational security objectives.
  • Architect, design, and enhance IAM solutions, with a focus on PKI, identity management, and privileged access management.
  • Establishes vendor relationships to evaluate various technologies and associated costs to ensure technology meets business requirements and budget forecasts.
  • Evaluate, select, and implement IAM platforms to ensure effective identity lifecycle management, authentication, and authorization.
  • Design and implement privileged access management solutions to safeguard critical systems and data.
  • Establish and enforce policies for privileged account usage and monitor compliance with security standards.
  • Ensure IAM solutions comply with relevant industry regulations and internal security policies.
  • Contribute to the development of security governance frameworks and provide expertise in security audits.
  • Mentors, trains, coaches, guides Systems Engineers. Applies direction/ feedback from management to continually improve performance and service levels.
  • Designs, develops, documents, tests and debugs new and existing configuration management patterns and infrastructure as code. Performs systems engineering, installation, configuration, and maintenance of assigned technology responsibilities,
  • Works collaboratively with other technology and business teams to gather requirements and develop technology standards. Engages vendor partners to evaluate, test and implement technology solutions that meet business requirements.
  • Implements and reviews systems monitoring to ensure platform availability and optimal performance. Analyzes systems health data and makes recommendations to improve performance, prevent service degradation and ensure high availability of technology platforms.
  • Provides systems production support, reporting and monitoring of availability for IT Systems.
  • Provides escalation support to resolve escalated and complex hardware/software related problems as tier III support, diagnose issues, performs root cause analysis and implements mitigating measures of assigned technology platforms.
  • Implements defined changes to existing hardware and operating system infrastructure such as security patches, non-security patches and technology upgrades in support of vulnerability management, emerging threats and lifecycle management.
  • Creates and/or edits technology policies, procedures and associated documentation.
  • Interacts with internal customers and external vendors to provide quality customer service.
  • Support existing technology infrastructure in an on-call capacity as part of a team rotation.
  • A technical expert that is continuously learning and keeping abreast of new technologies and industry best practices and finding ways to bring those practices into the engineering organization.
  • Completes work in a timely and accurate manner while providing exceptional customer service.
  • Participates in and follow change management processes for change implementation.
  • Support the company's commitment to risk management and protecting the integrity and confidentiality of systems and data.
  • The above job description is not intended to be an all-inclusive list of duties and standards of the position. Incumbents will follow instructions and perform other related duties as assigned by their supervisor.

Minimum Qualifications
  • Bachelor's degree in Computer Science, Information Security or related field or equivalent work experience
  • A minimum of 10 years proven experience as a senior engineer or architect in IAM, with a focus on PKI, identity management, and privileged access management.
  • Strong understanding of security compliance frameworks, governance, and risk management.
  • In-depth knowledge of network protocols, Active Directory, and security best practices.
  • Must be able to demonstrate practical knowledge and use of Birthright Applications, Role-Based-Access, Least Privileged Access and other forms of
  • Must demonstrate strong attention to detail.
  • Strong analytical skills with the ability to collect, organize, analyze and disseminate information with attention to detail and accuracy.
  • This position requires excellent communication, interpersonal and customer service skills, including attentive and active listening to identify and address customer needs.
  • Good communication, interpersonal and customer service skills, including attentive and active listening to identify and address customer needs. Customer service skills including the ability to manage and respond to different customer situations while maintaining a positive and friendly attitude is essential.
  • Progressive experience managing professional relationships with vendors/ contractors is necessary. Proven ability to establish mutually beneficial relationships through negotiations, coordination, professionalism, courtesy and managing expectations is required.
  • Collaboration, facilitation, and negotiation skills are required.
  • The ability to work efficiently and accurately under pressure, meet deadlines, present a professional demeanor and work well independently is essential.
  • Must possess strong organizational skills, including the ability to multi-task and manage multiple projects to meet various deadlines in a fast-paced environment.
  • A working knowledge of Microsoft office, including skills with Word, Excel, and Outlook are necessary.
  • Background and drug screen.

Preferred Qualifications
  • Relevant certifications such as PCI, CIAM, CompTIA Security+, CISSP, CISM, or CISA are a plus.

Physical Requirements
Working conditions consist of a normal office environment. Work is primarily sedentary and requires extensive use of a computer and involves sitting for periods of approximately four hours. Work may require occasional standing, walking, kneeling, and reaching. Must be able to lift 10 pounds occasionally and/or negligible amount of force frequently. Requires visual acuity and dexterity to view, prepare, and manipulate documents and office equipment including personal computers. Requires the ability to communicate with internal and/or external customers.
Employee must be able to perform essential functions and physical requirements of position with or without reasonable accommodation.
The base pay scale for this position in:
Phoenix, AZ/ Chicago, IL in USD per year is: $184,000 - $230,000.
San Francisco, CA in USD per year is: $221,000 - $276,000.
Additionally, candidates are eligible for a discretionary incentive plan and benefits.
This pay scale is subject to change and is not necessarily reflective of actual compensation that may be earned, nor a promise of any specific pay for any specific candidate, which is always dependent on legitimate factors considered at the time of job offer. Early Warning Services takes into consideration a variety of factors when determining a competitive salary offer, including, but not limited to, the job scope, market rates and geographic location of a position, candidate's education, experience, training, and specialized skills or certification(s) in relation to the job requirements and compared with internal equity (peers). The business actively supports and reviews wage equity to ensure that pay decisions are not based on gender, race, national origin, or any other protected classes.
Some of the Ways We Prioritize Your Health and Happiness
  • Healthcare Coverage - Competitive medical (PPO/HDHP), dental, and vision plans as well as company contributions to your Health Savings Account (HSA) or pre-tax savings through flexible spending accounts (FSA) for commuting, health & dependent care expenses.
  • 401(k) Retirement Plan - Featuring a 100% Company Safe Harbor Match on your first 6% deferral immediately upon eligibility.
  • Paid Time Off - Flexible Time Off for Exempt (salaried) employees, as well as generous PTO for Non-Exempt (hourly) employees, plus 11 paid company holidays and a paid volunteer day.
  • 12 weeks of Paid Parental Leave
  • Maven Family Planning - provides support through your Parenting journey including egg freezing, fertility, adoption, surrogacy, pregnancy, postpartum, early pediatrics, and returning to work.

And SO much more! We continue to enhance our program, so be sure to check our Benefits page here for the latest. Our team can share more during the interview process!
Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.
Early Warning Services, LLC ("Early Warning") considers for employment, hires, retains and promotes qualified candidates on the basis of ability, potential, and valid qualifications without regard to race, religious creed, religion, color, sex, sexual orientation, genetic information, gender, gender identity, gender expression, age, national origin, ancestry, citizenship, protected veteran or disability status or any factor prohibited by law, and as such affirms in policy and practice to support and promote equal employment opportunity and affirmative action, in accordance with all applicable federal, state, and municipal laws. The company also prohibits discrimination on other bases such as medical condition, marital status or any other factor that is irrelevant to the performance of our employees.

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