Z/OS Mainframe Systems Engineer

TEKsystems; Cedar Rapids (IA); Remote; USD 51,000 - 73,000; Full time

Benefits offered by this job

Medical

Dental & Vision

Critical Illness

Accident & Hospital

401(k) Retirement Plan

Life Insurance

AD&D

Short/Long-term Disability

Health Spending Account (HSA)

Transportation benefits

Employee Assistance Program

PTO/Vacation/Sick Leave

Job summary

TEKsystems is seeking an experienced Mainframe Systems Programmer/Engineer to support and maintain core mainframe infrastructure in a z/OS Sysplex environment. The role involves installing, testing, maintaining, documenting, monitoring, and supporting mainframe software and the BMC Control-D output management platform.

Responsibilities include day-to-day operations during U.S. business hours, on-call rotation, disaster recovery testing, and collaboration with vendors.

Qualifications

• Moderate knowledge of IBM z/OS and mainframe architecture.
• Experience supporting enterprise mainframe environments.
• Strong understanding of IT infrastructure concepts and system operations.
• Working knowledge of programming languages such as Assembler, COBOL, REXX, or SAS.
• Experience with JCL, TSO/ISPF, and SDSF.
• Knowledge of BMC Control-D and related components.
• Experience following structured testing and implementation procedures.

Responsibilities

• Provide primary support coverage during U.S. business hours (8:00 AM to 4:30 PM Central Time).
• Participate in an on-call rotation, including after-hours and weekend support.
• Monitor and support mainframe systems to ensure platform health and stability.
• Troubleshoot and resolve infrastructure and software issues through root cause analysis.
• Support and maintain the BMC Control-D environment and related tools.
• Collaborate with software vendors to diagnose issues and implement fixes.
• Monitor system metrics and identify performance and optimization opportunities.
• Review system and software information to identify defects and maintenance needs.
• Respond to customer support requests and operational incidents.
• Participate in disaster recovery testing and related activities.
• Support infrastructure and business-driven projects.
• Install, configure, and maintain third-party mainframe software and fixes.
• Design and adapt platform solutions to meet business needs.
• Drive improvements in availability, efficiency, and cost.

Skills

z/OS knowledge

Mainframe support

IT infrastructure concepts

Programming: Assembler COBOL REXX SAS

JCL/TSO/SDSF

BMC Control-D

Disaster recovery concepts

Troubleshooting

Communication

Tools

BMC Control-D

Job description

We are seeking an experienced Mainframe Systems Programmer/Engineer to support and maintain core mainframe infrastructure in a z/OS Sysplex environment. This role is responsible for the installation, testing, maintenance, documentation, monitoring, and support of mainframe software and components, as well as support for the BMC Control-D output management platform.

Responsibilities:

• Provide primary support coverage during U.S. business hours (8:00 AM to 4:30 PM Central Time).
• Participate in an on-call rotation, including after-hours and weekend support.
• Perform daily monitoring and support of mainframe systems and software to ensure overall platform health and stability.
• Troubleshoot and resolve infrastructure and software issues through root cause analysis.
• Support and maintain the BMC Control-D output management environment, including report definitions, mission and decollation processes, and web-based access tools.
• Work with software vendors to troubleshoot issues, gather diagnostics, and implement fixes.
• Monitor key system metrics and proactively identify performance, stability, and optimization opportunities.
• Review system and software information regularly to identify potential defects, maintenance needs, and preventative actions.
• Respond to customer support requests and operational incidents.
• Participate in disaster recovery testing and related preparedness activities.
• Support infrastructure and business-driven projects.
• Install, configure, and maintain third-party mainframe software and software fixes.
• Design and adapt platform solutions to meet business and operational requirements.
• Continuously drive improvements in system availability, operational efficiency, and cost optimization.

Required Skills & Experience:

• Moderate knowledge of IBM z/OS and mainframe architecture.
• Experience supporting enterprise mainframe environments.
• Strong understanding of IT infrastructure concepts and system operations.
• Working knowledge of one or more programming languages such as Assembler, COBOL, REXX, or SAS.
• Experience with JCL, TSO/ISPF, and SDSF.
• Knowledge of BMC Control-D output management systems and related components.
• Experience following structured testing and implementation procedures.
• Understanding of disaster recovery concepts and processes.
• Strong troubleshooting, analytical, and problem-solving skills.
• Strong verbal and written communication skills.
• High attention to detail and commitment to quality.
• Ability to collaborate effectively with cross-functional teams and stakeholders.

Preferred Technical Experience:

• IBM z/OS Operating Systems
• IBM Mainframe Platforms
• Systems Engineering
• JCL Development and Administration
• BMC Control-D
• Sysplex Environments
• Mainframe Monitoring and Performance Analysis

Job Type & Location

This is a Contract position based out of Cedar Rapids, IA.

Pay and Benefits

The pay range for this position is $45.00 - $45.00/hr.

Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: Medical, dental & vision Critical Illness, Accident, and Hospital 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available Life Insurance (Voluntary Life & AD&D for the employee and dependents) Short and long-term disability Health Spending Account (HSA) Transportation benefits Employee Assistance Program Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a fully remote position.

Application Deadline

This position is anticipated to close on Oct 7, 2026.

About TEKsystems

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

We’re a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We’re a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We’re strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We’re building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance:

Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector:

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI):

We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.