Mainframe Developer

Job Summary
Our client, a leading financial services provider, is seeking a Mainframe Developer to join their team. The Mainframe Developer is responsible for designs and builds relational database models and defines data requirements to meet the business needs.



Core Responsibilities

• Partner with business stakeholders, Product Owners, SMEs, analysts, and development teams to understand business processes, data requirements, source systems, data mappings, and data consumption needs
• Translate business requirements, processes, and rules into logical and physical data models, source-to-target mappings, and data integration specifications
• Develops logical and physical database models
• Writes scripts and commands for data manipulation
• Design and govern reusable test data patterns, provisioning approaches, masking strategies, synthetic data solutions, and environment refresh processes
• Define and implement test data strategies that support functional, regression, integration, performance, automation, and modernization testing needs
• Design and govern reusable test data patterns, test data provisioning approaches, masking strategies, synthetic data solutions, and environment refresh processes
• Document data models, test data design patterns, source-to-target mappings, provisioning processes, standards, and best practices for repeatable enterprise use
• Ensure test data solutions comply with data privacy, protection, retention, classification, and regulatory requirements for sensitive customer and financial data

Required Skills/Experience (Must-Haves)

• COBOL
• CICS
• DB2
• DB2 utilities
• SQL JCL
• MVS Utilities
• Experience doing Production Support
• Use of CA7 Scheduling tool
• Need to be able to do analysis on the as-is and come up with design of the to be
• Use of Jira

Preferred Skills/Experience (Nice-to-Haves)

• Banking Domain Knowledge
• Strong experience in data analysis, data architecture, database design, test data management, quality engineering, or software delivery
• Proficiency writing and optimizing SQL queries for data discovery, validation, reconciliation, and troubleshooting
• Experience analyzing relational databases, mainframe data structures, files, batch jobs, APIs, and downstream data consumers

Key Competencies & Behaviors

• Strong analytical and problem-solving skills across complex, interconnected systems
• Collaboration across product, engineering, quality, architecture, and operations teams
• Data governance and compliance mindset
• Clear documentation of data models, mappings, standards, and best practices for repeatable enterprise use
• Ability to build technical relationships and lead design efforts that deliver innovative solutions

Work Environment

• Location: Hybrid in Hopkins, Minnesota
• Hybrid: Onsite 3+ days per week - 2 remote

Compensation & Benefits

• Pay Range: The approximate pay range for this position is between $44.00 and $63.00 per hour. Please note that the pay range provided is a good faith estimate. Final compensation may vary based on factors including but not limited to background, knowledge, skills, and location. We comply with local wage minimums.
• Medical, Dental, & Vision Insurance Plans
• Employee-Owned Profit Sharing (ESOP)
• 401K offered

About KellyMitchell
At KellyMitchell, our culture is world class. We're movers and shakers! We don't mind a bit of friendly competition, and we reward hard work with unlimited potential for growth. This is an exciting opportunity to join a company known for innovative solutions and unsurpassed customer service. We're passionate about helping companies solve their biggest IT staffing & project solutions challenges. As an employee-owned, women-led organization serving Fortune 500 companies nationwide, we deliver expert service at a moment's notice.



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