What are the responsibilities and job description for the Mainframe Application Developer position at ACS Consultancy Services, Inc.?
Job Title: Mainframe Application Developer
Location: Broadway, NY ( hybrid)
We are currently seeking candidates who meet the following qualifications:
Key Responsibilities Core Application Support- Maintain, support, and enhance legacy mainframe applications supporting the MNR Crew Management System.
- Monitor and troubleshoot daily batch jobs, interfaces, and workflows to ensure stable and reliable system operations.
- Load and validate new crew schedules within CMS.
- Diagnose and resolve production issues to prevent operational disruptions across connected systems.
- Manage data interfaces between CMS and other MTA systems, including Kronos (payroll) and PeopleSoft.
- Oversee data extracts that feed into the enterprise data lake and downstream reporting environments.
- Develop, modify, and generate operational and regulatory reports for FRA, IG, and additional stakeholders.
- Ensure accurate, timely delivery of critical data to downstream systems.
- Develop the strategy and execution plan for migrating historical CMS data into the new, modern Crew Management System.
- Validate migrated data to ensure completeness, accuracy, and readiness for future operational use.
- Collaborate with IT, business teams, and modernization project leadership to ensure seamless transition.
- Perform routine system maintenance and enhancement work to ensure optimal performance and uptime.
- Support business continuity by documenting processes, workflows, and integrations.
- Provide knowledge transfer and system expertise to IT team members and project stakeholders.
- Experience in application development, preferably supporting mainframe environments or legacy enterprise systems.
- Strong understanding of batch processing, interface workflows, and data integrations.
- Experience with operational reporting and regulatory reporting requirements.
- Ability to troubleshoot complex production issues under time-sensitive conditions.
- Experience supporting mission-critical or operationally sensitive systems.
- Familiarity with large-scale data migration efforts is strongly preferred.
- Prior experience in transportation, logistics, or crew management systems.
- Experience working with Kronos, PeopleSoft, or similar enterprise systems.
- Knowledge of FRA Hours of Service reporting or other regulated reporting domains.
If you meet these qualifications, please submit your application via the link provided on LinkedIn.
Kindly do not call the general line to submit your application.