Mainframe Developer

This is on onsite position in Baltimore, MD

Mainframe Developer

Key Responsibilities:

• Develop, maintain, and enhance client legacy mainframe applications, including:

o Arrest & Disposition Reporting (ADR)

o Ident/Index (I/I)

• Support the CCH system migration initiative by reviewing legacy mainframe code with Business Analysts to develop functional business requirements for migration planning and implementation.

• Utilize tools and technologies including:

o COBOL, CICS, JCL, DB2, IMS, VSAM, TSO

o Xpeditor, File-AID, QMF, TSO/ISPF

o MQ Series for messaging and integration

• Collaborate with Business Analysts, QA staff, and Project Managers to translate business needs into technical specifications.

• Resolve application issues by analyzing and debugging code and working within established SLAs to close Help Desk tickets efficiently.

• Provide 24/7 on-call production support for mission-critical systems year-round.

• Evaluate performance issues and recommend system improvements.

• Maintain and follow established Quality Management and Configuration Management processes.

• Shadow team members to provide redundancy and ensure continuous support coverage.

• Prepare, update, and maintain technical documentation, including system design, workflows, and implementation guides.

• Attend internal and vendor meetings to assist with project planning, requirements gathering, and implementation strategies.

• Deliver regular project updates and status reports to agency stakeholders and leadership.

• Provide mentoring, technical assistance, and troubleshooting guidance to other IT personnel and business users.

Required Qualifications:

• 10+ years of hands-on mainframe development experience using:

o COBOL, CICS, JCL, DB2, IMS, VSAM, TSO

• Proficiency in mainframe debugging and development tools:

o Xpeditor, File-Aid, QMF, ISPF

• Experience integrating systems using MQ Series

• Deep understanding of criminal history lifecycle and related systems preferred

• Proven ability to work in high-pressure environments supporting 24/7 mission-critical applications

• Demonstrated experience with requirements analysis, software development, testing, and production support in government or regulatory settings

• Excellent technical documentation, communication, and stakeholder engagement skills

• Strong multitasking and time-management abilities, capable of handling multiple complex projects simultaneously

Preferred Qualifications:

• Knowledge of interface points between mainframe systems and web-based or cloud platforms

• Experience working in Agile and/or Waterfall environments