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Mainframe Developer Part Time Jobs in Ohio (NOW HIRING)

Junior Developer

Beavercreek, OH ยท On-site

$62K - $81K/yr

SierTeK Ltd. is seeking an Application Developer to support an opportunity remotely (part-time) ... FOCUS - This system is written primarily in Mainframe FOCUS * JCL * REXX * COBOL * Assembler * MS ...

Junior Developer

Beavercreek, OH ยท On-site +1

$62K - $81K/yr

SierTeK Ltd. is seeking an Application Developer to support an opportunity remotely (part-time) ... FOCUS - This system is written primarily in Mainframe FOCUS * JCL * REXX * COBOL * Assembler * MS ...

SierTeK Ltd. is seeking an Application Developer to support an opportunity remotely (part-time) ... FOCUS - This system is written primarily in Mainframe FOCUS * JCL * REXX * COBOL * Assembler * MS ...

Mainframe Developer Part Time information

What is a mainframe developer part time?

A Mainframe Developer Part Time job involves designing, coding, testing, and maintaining software applications on mainframe systems while working a reduced or flexible schedule. Responsibilities typically include working with technologies like COBOL, JCL, DB2, and CICS to support business-critical applications. Part-time developers may assist in system upgrades, debugging, and performance optimization. This role is ideal for professionals seeking flexibility, such as students, retirees, or those balancing other commitments.

What types of projects and responsibilities can I expect as a part-time mainframe developer?

As a part-time Mainframe Developer, you'll typically work on maintaining, enhancing, and troubleshooting legacy mainframe applications, often collaborating closely with full-time developers and business analysts. Your weekly tasks may include writing or modifying COBOL programs, optimizing JCL scripts, performing system integrations, and participating in code reviews or defect resolutions. Many employers offer flexible scheduling, making it possible to work remotely or during off-hours to minimize disruption to ongoing business operations. You may also contribute to documentation, testing, or modernization initiatives, gaining valuable exposure to both established and evolving technologies. This hands-on experience is an excellent opportunity to build specialized skills and advance your career within organizations that depend on mainframe systems.

What are the key skills and qualifications needed to thrive in the mainframe developer part time position, and why are they important?

To thrive as a Mainframe Developer Part Time, you need strong skills in COBOL, JCL, DB2, and mainframe operating systems, typically backed by a degree in computer science or related field. Familiarity with mainframe tools such as IBM z/OS, CICS, and knowledge of version control systems or relevant certifications (e.g., IBM Certified System Programmer) are often required. Attention to detail, problem-solving abilities, and effective communication make candidates stand out. These skills ensure efficient maintenance, troubleshooting, and enhancement of critical business applications that rely on mainframe technologies.

What are the most commonly searched types of Mainframe Developer jobs in Ohio?

The most popular types of Mainframe Developer jobs in Ohio are:

What are popular job titles related to Mainframe Developer Part Time jobs in Ohio?

For Mainframe Developer Part Time jobs in Ohio, the most frequently searched job titles are:

What job categories do people searching Mainframe Developer Part Time jobs in Ohio look for?

The top searched job categories for Mainframe Developer Part Time jobs in Ohio are:

What cities in Ohio are hiring for Mainframe Developer Part Time jobs?

Cities in Ohio with the most Mainframe Developer Part Time job openings:

Infographic showing various Mainframe Developer Part Time job openings in Ohio as of August 2026, with employment types broken down into 85% Full Time, 2% Part Time, and 13% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

Application Developer

Beavercreek, OH โ€ข On-site

SierTeK Ltd.
Guided Missile and Space Vehicle Manufacturingย โ€ขย 201 - 500 employees

Part-time

Posted 24 days ago


Job description

SierTeK proudly serves our clients by providing expertise in the Program Management, Information Technology, and Administrative Support domains. Founded in 2007 as a minority and service-disabled veteran-owned company, we serve as prime- and subcontractor for a multitude of Federal Department of Defense contracts. By focusing on continual improvement, our services remain at the forefront of our industry, and we pride ourselves on delivering our services with the highest degree of integrity.SierTeK Ltd. is seeking an Application Developer to support an opportunity remotely (part-time). PLEASE APPLY DIRECTLY ON OUR WEBSITE: www.siertek.com/careers Essential Job FunctionsAnalyze requirements, design, develop, test, and implement solutions for the CMCS system - DOD, US Air Force and government customers.Provide production supportProvide system documentationProvide assistance to less experienced staff.Business challenges include development of new functionality as well as break-fix analysis and support.Work independently within a structured development lifecycle.Understand complex business requirements and interface well with other DOD and government systems.QualificationsMinimal Position RequirementsA strong knowledge of the Z/OS environment including TSO/ISPFKnowledge programming languages in order of importanceFOCUS – This system is written primarily in Mainframe FOCUSJCLREXXCOBOLAssemblerMS Office – including the following:OutlookTeamsWordEXCELPersonal QualificationsA strong customer focus. Applicant should be responsive and efficient when dealing with clients.Strong verbal and written communication skills.A flexible and/or creative approach to problem solvingAbility to work in a team environmentAble to work with people across the country in different time zones SierTeK is an equal opportunity employer. Employment is decided based on qualifications, merit, and business need. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected Veteran status, gender identity and sexual orientation.This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, transfer, leaves of absence, compensation, and training.If you need assistance or accommodation due to a disability, you may contact us at 1+833.743.7835.


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About Siertek

Sourced by ZipRecruiter

Industry

Guided missile and space vehicle manufacturing

Company size

201 - 500 Employees

Headquarters location

Beavercreek, OH, US

Year founded

2007