Beavercreek, OH · On-site
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 ...
New
Beavercreek, OH · On-site
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 ...
New
Beavercreek, OH · On-site +1
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 ...
New
Beavercreek, OH · On-site +1
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 ...
New
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.
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.
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.
The most popular types of Mainframe Developer jobs in Ohio are:
For Mainframe Developer Part Time jobs in Ohio, the most frequently searched job titles are:
The top searched job categories for Mainframe Developer Part Time jobs in Ohio are:
Cities in Ohio with the most Mainframe Developer Part Time job openings:
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).
Essential Job Functions
Minimal Position Requirements
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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Guided missile and space vehicle manufacturing
201 - 500 Employees
Beavercreek, OH, US
2007
