Mainframe Developer

• Onsite, Dallas TX area
• W2 Only YOH Services LLC 401(k) United States, Texas, Roanoke Sep 12, 2026 Mainframe Developer
• Onsite, Dallas TX area
• W2

Only What You'll Do:

Develop, test, and support complex mainframe applications using COBOL, DB2, CICS, JCL, and VSAM. Collaborate closely with architecture teams to design robust solutions, participate in requirement analysis, and oversee system testing. Optimize application performance through tuning and capacity planning. Create detailed documentation for a variety of applications and subsystems. Act as a key problem-solver by resolving project and technological issues with innovative approaches. Mentor junior developers and lend strategic technical advice to ensure project success and continuous improvement.

Required Skills:

5+ years of experience in mainframe application development with

COBOL, CICS, DB2, JCL, VSAM, SYNC

SORT, and MQ-Series

Proven track record in test automation, performance tuning, and mainframe support

Strong expertise with mainframe tools such as Endevor, File-Aid, Abend-Aid, Intertest, and Control-M

Skilled in data flow analysis, debugging, and version control management

Familiarity with open-source technologies like Python is a plus Nice to

Have Skills:

Experience with web services and Java

Knowledge of open-source tech integrations

Excellent communication skills to collaborate effectively with business and technical teams

Preferred Education & Experience:

Bachelor's degree (or foreign equivalent) in Computer Science, Engineering, Information Technology, or a related field

5+ years of targeted experience in mainframe systems, particularly in financial or brokerage environments

Other Requirements:

Onsite presence in Dallas, TX

W2 employment only

Estimated Min Rate:

$38.50

Estimated Max Rate:

$55.00 What's In It for You? We welcome you to be a part of the largest and legendary global staffing companies to meet your career aspirations. Yoh's network of client companies has been employing professionals like you for over 65 years in the U.S., UK and Canada. Join Yoh's extensive talent community that will provide you with access to Yoh's vast network of opportunities and gain access to this exclusive opportunity available to you. Benefit eligibility is in accordance with applicable laws and client requirements.

Benefits include:

Medical, Prescription, Dental & Vision Benefits (for employees working 20+ hours per week)

Health Savings Account (HSA) (for employees working 20+ hours per week)

Life & Disability Insurance (for employees working 20+ hours per week)

MetLife Voluntary Benefits

Employee Assistance Program (EAP)

401K Retirement Savings Plan

Direct Deposit & weekly epayroll

Referral Bonus Programs

Certification and training opportunities

Note:

Any pay ranges displayed are estimations. Actual pay is determined by an applicant's experience, technical expertise, and other qualifications as listed in the job description. All qualified applicants are welcome to apply. Yoh, a Day & Zimmermann company, is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Visit https:

//www.yoh.com/applicants-with-disabilities

to contact us if you are an individual with a disability and require accommodation in the application process. For California applicants, qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. All of the material job duties described in this posting are job duties for which a criminal history may have a direct, adverse, and negative relationship potentially resulting in the withdrawal of a conditional offer of employment. 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. By applying and submitting your resume, you authorize Yoh to review and reformat your resume to meet Yoh's hiring clients' preferences. To learn more about Yoh's privacy practices, please see our

Candidate Privacy Notice:

https://www.yoh.com/privacy-notice Stay Safe During Your Job Search Fraudulent recruiting communications have become increasingly common. Emails from Yoh recruiters will only come from an @yoh.com email address. Yoh will never ask candidates to pay fees, purchase equipment, send gift cards, or transfer funds as part of the recruiting or hiring process. If you receive a communication that appears suspicious or requests payment, contact Yoh directly before responding or sharing personal information.