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Senior Mainframe Software Engineer Jobs (NOW HIRING)

Senior Mainframe Systems Programmer

Westlake, OH · On-site

$51 - $64.75/hr

Senior Mainframe Systems Programmer The Sr. Mainframe Systems programmer is responsible for the overall engineering, operations, and planning of the mainframe, IBM z/OS operating system software and ...

Mainframe Software Engineer

Erie, PA · On-site

$47.50 - $61.25/hr

Pennsylvania, US As a Mainframe Software Engineer, you will: * Development and support of the Internal Mainframesapplication The ideal candidate will have: * Should have expertise in providing ...

Mainframe Developer

Morristown, NJ · On-site

$50.50 - $64.75/hr

NAVA Software solutions is looking for a Sr. Mainframe Engineer Details: Role: Sr. Mainframe Engineer Location: Morris Plains, NJ , Memphis TN, Somerset NJ, Austin TX, St. Louis MO, Morristown NJ ...

Senior Mainframe Engineer MAHIN-JOB-32525 Location: RENTON Job Title: Senior Mainframe Engineer ... Required Experience & Skills ¿ Five years software engineering experience including code ...

Mainframe Developer

Morristown, NJ · On-site

$50.50 - $65/hr

NAVA Software solutions is looking for a Sr. Mainframe Engineer Details: Role: Sr. Mainframe Engineer Location: Morris Plains, NJ , Memphis TN, Somerset NJ, Austin TX, St. Louis MO, Morristown NJ ...

SYSTEMTEC is seeking a Senior Mainframe Developer for a hybrid opportunity for candidates in ... This individual will leverage deep technical expertise to deliver high-quality software solutions ...

New

Mainframe System Engineer

Seattle, WA · On-site

$62.75 - $79.75/hr

Open The Senior Mainframe System Engineer supports the mainframe infrastructure focusing on z/OS, 3rd party software installations and level 3 support in a multi-LPAR environment. The Senior ...

Senior Mainframe Engineer Location: Plano, TX Work Mode: Remote Position Summary: We are seeking a ... third-party software. • Monitor CICS environments to ensure error-free operation and high ...

Sr. Mainframe Developer

$50.25 - $64.50/hr

Ability to install and customize IBM and third-party software using SMP/E, zOSMF, or vendor specific installation methods Our Mainframe Engineering team is looking for an experienced, senior level ...

Senior Mainframe Developer NC-DHHS is seeking a Senior mainframe developer to provide support for ... Experience in software development and debugging using mainframe technologies such as Cobol, CICS ...

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Senior Mainframe Software Engineer information

See salary details

$75.5K

$143.3K

$192K

How much do senior mainframe software engineer jobs pay per year?

As of Jun 26, 2026, the average yearly pay for senior mainframe software engineer in the United States is $143,292.00, according to ZipRecruiter salary data. Most workers in this role earn between $122,500.00 and $161,500.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Senior Mainframe Software Engineer, and why are they important?

To thrive as a Senior Mainframe Software Engineer, you need deep expertise in COBOL, JCL, DB2, and mainframe architecture, often backed by a degree in computer science or related fields and several years of relevant experience. Familiarity with tools like IBM z/OS, CICS, RACF, and version control systems is typically required, along with certifications like IBM Certified System Programmer as a plus. Strong analytical thinking, problem-solving ability, and effective communication are crucial soft skills for leading projects and collaborating with cross-functional teams. These skills ensure reliable, secure, and efficient operation of critical legacy systems that are foundational to many large organizations.

What are Senior Mainframe Software Engineers?

Senior Mainframe Software Engineers are experienced professionals who design, develop, maintain, and optimize software applications running on mainframe computer systems. They typically work with legacy programming languages such as COBOL, PL/I, or Assembler, and are responsible for ensuring the reliability, scalability, and security of critical business applications. Their role often includes troubleshooting complex issues, integrating new technologies with existing systems, and mentoring junior engineers. These specialists are essential for organizations that rely on mainframes for large-scale data processing and transaction management.

What are some common challenges faced by Senior Mainframe Software Engineers when integrating legacy systems with modern technologies?

Senior Mainframe Software Engineers often encounter challenges when bridging legacy mainframe systems with newer technologies, such as ensuring compatibility, maintaining data integrity, and managing security risks. These integrations typically require a deep understanding of both the existing mainframe environment and the modern platforms being adopted. Collaboration with cross-functional teams, including application developers, architects, and business analysts, is essential to design effective solutions and minimize disruptions. Staying current with industry best practices and emerging tools can help address these challenges and ensure a smooth transition.

What is the difference between Senior Mainframe Software Engineer vs Mainframe Developer?

AspectSenior Mainframe Software EngineerMainframe Developer
CredentialsBachelor's in Computer Science or related, often with certifications like IBM Certified SpecialistSimilar educational background, often with certifications in mainframe technologies
Work EnvironmentLarge enterprise IT departments, financial institutions, government agenciesSame as Senior Mainframe Software Engineer, often within similar industries
ResponsibilitiesDesign, develop, and oversee mainframe applications; lead projects; troubleshoot complex issuesDevelop and maintain mainframe applications; focus on coding and debugging

While both roles involve mainframe technologies and similar credentials, Senior Mainframe Software Engineers typically have more leadership responsibilities and oversee projects, whereas Mainframe Developers focus primarily on coding and application maintenance.

More about Senior Mainframe Software Engineer jobs
What cities are hiring for Senior Mainframe Software Engineer jobs? Cities with the most Senior Mainframe Software Engineer job openings:
What are the most commonly searched types of Mainframe Software Engineer jobs? The most popular types of Mainframe Software Engineer jobs are:
What states have the most Senior Mainframe Software Engineer jobs? States with the most job openings for Senior Mainframe Software Engineer jobs include:
What job categories do people searching Senior Mainframe Software Engineer jobs look for? The top searched job categories for Senior Mainframe Software Engineer jobs are:
Infographic showing various Senior Mainframe Software Engineer job openings in the United States as of June 2026, with employment types broken down into 57% Full Time, and 43% Contract. Highlights an 100% In-person job distribution, with an average salary of $143,292 per year, or $68.9 per hour.
Senior Mainframe Systems Programmer

Senior Mainframe Systems Programmer

Apolis

Westlake, OH • On-site

$51 - $64.75/hr

Other

Posted 10 days ago


Job description

Senior Mainframe Systems Programmer

The Sr. Mainframe Systems programmer is responsible for the overall engineering, operations, and planning of the mainframe, IBM z/OS operating system software and all other IBM and third-party software. This is not an application development role, it is a deep technical infrastructure position focused on the performance, stability, and configuration of the mainframe environment. The individual will be responsible for providing technical expertise and guidance to the applications support team, the scheduling team, and to data center operations. This individual will work closely with IT leadership to develop long-term strategies to optimize the effective use of the mainframe platform. As the primary technical mainframe specialist, the individual will also be responsible for mainframe storage, tape library management and disaster recovery to ensure that all business-critical applications can be recovered in the event of data loss or system outages. The individual will also be responsible for providing senior technical expertise and direction to third-party consultants including application developers and technical resources. The individual in this role will help to plan and oversee mainframe technical project execution, server engineering skills, and technical resource deployment to ensure quality outcomes.

Essential Duties & Responsibilities:

  • Function as the subject matter expert for the mainframe platform to provide technical expertise and support to infrastructure, applications and third-party teams.
  • Lead the planning, installation, configuration, customization, and testing of IBM z/OS and all third-party mainframe software packages.
  • Perform CICS administration.
  • JobTrac application administration.
  • Drive capacity planning and resource optimization for the mainframe, storage and tape management systems.
  • Ability to evaluate specifications and features of new products, performing cost comparisons, feasibility and cost benefit analysis, performance, compatibility and testing to make recommendations.
  • Mentor less experienced Mainframe System Administrators including assigning work, reviewing work for adherence to standards, and providing technical guidance.
  • Assist with the overall disaster recovery planning and annual testing for the mainframe and storage replication services.
  • Identify and plan for the use of new technologies and capabilities including Linux and cloud-ready capabilities to improve optimized use of the mainframe platform.
  • Perform performance data collection, analysis, and the tuning of the z/OS operating system and associated applications.
  • Develop standards and procedures that support current and future operational needs with a focus on continuous improvement and automation on the mainframe environment.
  • Work closely with the corporate IT leadership to develop and implement new technology and solutions.
  • Assist with the planning and delivery of all major software upgrades, system maintenance activities, technical patching and hardware refresh initiatives for the mainframe environment.
  • Manage and drive IT service delivery and management disciplines with the mainframe and data center operations teams including incident, change and problem management.
  • Review technical requirements and solutions to ensure that mainframe security requirements are addressed and are in line with corporate standards.
  • Provide engineering and support of the enterprise scheduling packages including the training and development of process documentation for the scheduling and data center operations teams.
  • Assist the client security team with the provision of system and application access to mainframe hosted applications.
  • Work closely with manufacturing and distribution locations to install, configure and support printer hardware and software administration.

Experience Required:

Required Length & Type of Experience:

  • 10+ years of technical experience in engineering and supporting a large, complex mainframe and open system environment.
  • 5+ years of providing technical leadership and engineering assistance to experienced and junior infrastructure engineers and administrators.
  • Hands on, proven experience installing IBM mainframe hardware, operating systems and major third-party software vendors including CA, BMC, LRS and Information Builders.
  • Experience in designing, implementing and operating enterprise-wide mainframe and server infrastructure in a highly virtualized and dynamic environment.
  • Experience planning for and executing large, complex projects including major hardware architecture changes, hardware refreshes, major software version upgrades and global consolidations across multiple sites.
  • Experience delivering and supporting services that are used across large organizations with international, 24 x 7 support needs.

Knowledge, Skills & Abilities:

  • Expert-level knowledge of IBM z/OS operating system administration, performance tuning, installation, upgrade and patching.
  • Strong knowledge and technical skills in IBM mainframe hardware including hardware installs and upgrades, firmware and module patching and lifecycle planning.
  • Strong knowledge and understanding of IBM mainframe storage and tape management systems including storage replication technology.
  • Deep knowledge in CICS administration.
  • Strong knowledge and understanding of mainframe security, CICS and workload management tools and methodologies.
  • Strong knowledge of JobTrac administration.
  • Knowledge of database concepts in Mainframe, particularly in IDMS database administration.
  • Ability to plan for and execute third-party software patching and upgrades on the mainframe to resolve technical issues and maintain supported versions of all installed software.
  • Ability to provide strong and effective technical leadership to infrastructure and application resources to drive new development efforts.
  • Strong knowledge of ITIL service management and disciplines to drive continuous improvement of service delivery.
  • Ability to learn new technologies and apply skills to drive adoption of new capabilities and improve overall usage of the mainframe platform.
  • Ability to demonstrate and deliver excellent troubleshooting and analytical skills to drive rapid problem resolution individually and within the server team.
  • Strong understanding of project implementations, project structure and life cycle and best practice standards and tools.
  • Excellent communications and interpersonal skills to drive process improvements within the server team and across other infrastructure teams.