Remote Mainframe Database Migration Developer

Job Description

We are seeking a highly experienced Mainframe Database Migration Specialist to support a critical, time-sensitive enterprise data migration initiative. This consultant will play a key role in analyzing complex legacy mainframe environments, including COBOL-based applications, IMS databases, and batch processing workflows, to enable the successful migration of enterprise data to modern target platforms. The ideal candidate will be responsible for designing and executing extraction and conversion processes, modifying COBOL programs and JCL for data processing, and ensuring the integrity and accuracy of migrated data through robust validation and reconciliation procedures. This role requires deep expertise in IMS utilities, BMC Utilities, and mainframe data structures, as well as hands-on experience supporting secure file transfers (FTP/SFTP), troubleshooting batch job failures and performance issues, and implementing field-level data transformation logic. The specialist will collaborate closely with DBAs, architects, and cross-functional teams to define migration strategies, resolve technical challenges, and support all phases of the migration lifecycle, including testing, cutover, and post-production stabilization. Additionally, the consultant will develop comprehensive technical documentation, migration runbooks, and operational procedures, while identifying opportunities to improve efficiency through automation using tools such as REXX, CLIST, and File-AID. This individual must be able to work independently in a fast-paced environment, managing competing priorities and delivering high-quality results under aggressive project timelines.

We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to [email protected] learn more about how we collect, keep, and process your private information, please review Insight Global's Workforce Privacy Policy: https://insightglobal.com/workforce-privacy-policy/.

Skills and Requirements

10+ years of Mainframe Development experience

Expert-level COBOL programming experience

Strong JCL development and troubleshooting skills

Extensive IMS Database experience

Experience developing large-scale data extracts and conversion processes

Proven experience supporting enterprise data migration or modernization initiatives

Experience performing data analysis, reconciliation, and validation