Senior Mainframe Developer & Modernization Lead

Introduction

Apply to join the DPSCS team today for an exciting career with great benefits, pension, generous leave, competitive salary, and opportunities for advancement and professional growth.

20

6776 Reisterstown Rd. Baltimore MD 21215

• Provide technical leadership in the development, maintenance, and modernization of DPSCS legacy mainframe applications.
• Lead code reviews and design sessions, ensuring best practices in mainframe architecture, performance tuning, and maintainability.
• Design, implement, and optimize COBOL, CICS, JCL, DB2, IMS, VSAM, and TSO-based components within production and development environments.
• Champion the use of development tools such as Xpeditor, File-AID, QMF, and TSO/ISPF to streamline debugging, testing, and deployment processes.
• Collaborate cross-functionally with project managers, QA analysts, business stakeholders, and vendors to ensure alignment between business requirements and technical solutions.
• Lead incident and problem management efforts, providing root cause analysis and long-term corrective action for production issues.
• Provide 24/7 on‑call support for mission‑critical systems and ensure operational continuity through proactive monitoring and redundancy planning.
• Contribute to modernization planning, advising leadership on strategies for integrating mainframe systems with cloud, API, or web‑based platforms.
• Prepare and maintain comprehensive technical documentation, including architecture diagrams, interface specifications, and process workflows.
• Represent the mainframe development team in technical planning sessions, vendor discussions, and governance meetings.

• Six years of experience, including two years designing, developing, testing, implementing, and maintaining applications with common programming languages or development tools, plus an additional four years converting data from project specifications.

• Candidates may substitute six credit hours of coursework in application analysis and programming for six months of the required experience.
• Graduation from an accredited high school or possession of a high school equivalency certificate and eighteen months of experience converting data from project specifications for the additional four years of experience.
• Graduation from an accredited high school or possession of a high school equivalency certificate and fifteen credit hours from an accredited college or university in systems analysis and application programming for the additional four years of experience.
• Experience on a year‑for‑year basis in operating computers, scheduling, controlling input and output or maintaining backups or data storage, processing data on computers, evaluating, implementing and maintaining hardware and software for a high school education.
• Possession of a Bachelor’s degree in Information Technology, Computer Science, Management Information Systems, or related field and two years of experience designing, developing, testing, implementing, and maintaining applications with common programming languages or development tools.
• U.S. Armed Forces military service experience as a commissioned officer in Computer Systems Programming classifications or specialty codes for the required experience.

• Experience supporting state or federal criminal justice systems or other regulated government systems.
• Familiarity with CCH modernization initiatives and legacy system migration frameworks.
• Knowledge of integration between mainframe systems and distributed, web‑based, or cloud platforms.
• Experience working within Agile, Dev Ops, or hybrid Waterfall environments.
• Strong understanding of security, compliance, and data governance within public safety systems.
• 10+ years of progressive experience in mainframe application development and support.
• Advanced proficiency in COBOL, CICS, JCL, DB2, IMS, VSAM, and TSO.
• Expert‑level experience with debugging and performance tools such as Xpeditor, File‑AID, QMF, and ISPF.
• Proven leadership in system modernization, migration planning, and legacy‑to‑modern integrations.
• Experience with MQ Series for message‑based integrations…