Mainframe Production Engineer

We are looking for a Mainframe Production Engineer to support and maintain the stability, availability, and performance of our IBM z/OS mainframe environment. The role focuses on production operations, batch workload scheduling, online transaction monitoring, incident management, and software release coordination.

You will work closely with application development, database, infrastructure, and operations teams to ensure the reliable execution of business-critical mainframe applications and the smooth delivery of changes across production and non-production environments.

Contract type: B2B
Work mode: 2 days/week at the office

Key Responsibilities

Monitor and support production batch processing and online environments running on IBM z/OS.

Manage and monitor batch workloads, job dependencies, and execution schedules using CA7 Workload Automation.

Troubleshoot failed batch jobs, JCL errors, abends, and scheduling issues, ensuring timely incident resolution.

Monitor CICS transaction processing and investigate online application incidents.

Support Db2 for z/OS operations by investigating database-related production issues in collaboration with database specialists.

Manage and execute software changes and application promotions using ChangeMan and/or Endevor, following established release and change management procedures.

Perform incident investigation, root cause analysis, and problem resolution to minimize production disruptions.

Monitor system and application performance, identify operational anomalies, and escalate complex infrastructure issues to the relevant technical teams.

Participate in an on-call rotation to provide timely support for critical production incidents.

Coordinate production deployments and maintenance activities with application, database, and infrastructure teams.

Identify opportunities to automate repetitive operational tasks and improve monitoring and reporting processes.

Maintain operational documentation, support procedures, recovery instructions, and standard operating procedures.

Follow established operational controls, security policies, and change management processes to ensure production stability and service continuity.

Requirements

A degree in Computer Science, Information Technology, Software Engineering, or a related field, or equivalent relevant professional experience.

At least 3 years of experience in mainframe production support, operations, or a related technical role.

Practical knowledge of IBM z/OS concepts, JCL, batch processing, and common mainframe utilities.

Hands-on experience with CA7 Workload Automation for batch scheduling, job monitoring, and dependency management.

Operational knowledge of CICS transaction processing.

Working knowledge of DB2 for z/OS and experience troubleshooting database-related production incidents.

Experience with mainframe software change and release management tools, such as ChangeMan and/or Endevor.

Experience in production incident management, troubleshooting, root cause analysis, and change control.

Strong analytical and problem-solving skills, with the ability to prioritize incidents and work effectively under time constraints.

Good command of written and spoken English.

Availability to participate in an on-call rotation.

Nice to Have

Experience with enterprise monitoring and alerting tools.

Familiarity with hybrid IT environments integrating mainframe and distributed systems.

Experience with operational scripting and process automation.

Knowledge of ITIL practices and incident, problem, and change management processes.

Familiarity with mainframe performance monitoring and workload optimization.