Kforce has a client in Birmingham, AL, that is seeking a Software Engineer III - Mainframe. Work is fully remote, but candidates must be available during Central or Eastern Time business hours. About the Role: Our client's Treasury Management Technology group is undertaking a critical modernization initiative, migrating a legacy account analysis and billing application from an on-premise mainframe platform to a vendor-hosted solution. As a Mainframe Software Engineer III, you will lead the effort to research existing systems, extract essential data, and create the COBOL/JCL jobs necessary to support a successful data migration. This is a hands-on role requiring deep mainframe expertise, analytical ability to navigate undocumented systems, and the technical acumen to develop reliable extract processes from VSAM datasets. Key Responsibilities: * Analyze and research legacy mainframe applications and data structures (primarily VSAM) * Design, develop, and execute COBOL and JCL batch jobs to extract and prepare data for migration * Collaborate with ETL and SQL Server development teams to normalize and transfer data into vendor-hosted applications * Identify and fill gaps in documentation through independent investigation and validation * Optimize batch processes and ensure compliance with regulatory and security standards * Contribute to Agile Scrum ceremonies and provide updates on sprint progress * Maintain clear, detailed documentation of all created jobs, logic, and data mappings