Mainframe Developer
About The Position
Deloitte is hiring an experienced Mainframe Developer for its Engineering and Product Software Engineering organization in Philadelphia, Pennsylvania. The role is part of the Project Delivery Talent Model, where professionals with specialized skills deliver services for a current client need without additional expectations related to business development or promotion. Employment is tied to the project role, and the position includes a benefits package competitive for project delivery-focused professionals. The developer will support mainframe production operations, monitor and troubleshoot batch processing, and maintain COBOL applications. The role includes participating in critical month-, quarter-, and year-end cycles, release and change activities, and on-call or off-hours support as needed. The position is on Deloitte’s AI & Engineering team, which builds and operates technology solutions across software, data, AI, networks, and hybrid cloud infrastructure to help clients transform mission-critical operations.
Requirements
- At least 3 years of experience in COBOL, DB2, JCL, and mainframe production support.
- Experience monitoring, troubleshooting, and supporting batch processing in a z/OS environment, including job scheduling and failed-job recovery.
- Experience with ServiceNow for incident and change management and PagerDuty for alerts and on-call response.
- Bachelor's degree, preferably in Computer Science, Information Technology, Computer Engineering, or a related IT discipline, or equivalent experience.
- Ability to travel an average of 10%, potentially including overnight travel.
Nice To Haves
- Ability to triage production incidents, perform root cause analysis, and resolve issues within critical batch windows.
- Strong communication and collaboration skills to coordinate with technical and business teams.
- Ability to support off-hours production needs as required.
Responsibilities
- Execute, monitor, and troubleshoot daily and nightly mainframe batch jobs using JCL, ensuring completion within service-level windows.
- Provide production support for mainframe applications by triaging incidents, identifying root causes, and resolving issues.
- Maintain and enhance COBOL programs to correct defects, implement small changes, and support business needs.
- Monitor DB2 batch processing, investigate data issues, and restart or rerun failed jobs using scheduling tools such as Control-M, CA7, or equivalent.
- Document runbooks, known issues, and resolution steps, and collaborate with application, database, and infrastructure teams to address recurring issues.
- Support critical month-, quarter-, and year-end batch cycles.
- Participate in change and release activities.
- Provide on-call or off-hours support as needed.
Benefits
- A benefits package competitive for project delivery-focused professionals.
- Potential eligibility to participate in a discretionary annual incentive program, subject to program rules and relevant factors.
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
