Senior Mainframe Engineer (z/OS) - COBOL, CICS & Data

The Tekstudios; Arizona; On-site; USD 120,000 - 170,000; Full time

Job summary

The Tekstudios seeks a seasoned Mainframe Engineer in Phoenix, AZ to support high-volume banking and payments systems. You will work with IBM z/OS, COBOL, JCL, and DB2 to ensure reliability and performance.

The role emphasizes data engineering concepts, batch and real-time processing, and integration with distributed systems via APIs. Excellent problem-solving and communication are essential.

Qualifications

• Strong mainframe engineer with 10+ years of experience.
• Extensive experience with IBM z/OS environments.
• Proficiency with COBOL, JCL, DB2, CICS, IMS, VSAM.
• Experience supporting high-volume transaction processing systems in banking/financial services.
• Understanding of data engineering concepts including ingestion, transformation, quality, metadata management, and lineage.
• Experience with batch and real-time data processing patterns.
• Experience with relational databases such as DB2, Oracle, PostgreSQL.
• Experience integrating mainframe applications with distributed systems using APIs, messaging platforms, or event-driven architectures.
• Understanding of banking and payments domains including money movement, ACH, settlement, reconciliation, or ISO20022 messaging standards.
• Experience supporting highly available, mission-critical platforms with demanding service-level objectives.
• Strong analytical, problem-solving, and troubleshooting skills.
• Excellent written and verbal communication skills.

Job description

The Tekstudios seeks a seasoned Mainframe Engineer in Phoenix, AZ to support high-volume banking and payments systems. You will work with IBM z/OS, COBOL, JCL, and DB2 to ensure reliability and performance.

The role emphasizes data engineering concepts, batch and real-time processing, and integration with distributed systems via APIs. Excellent problem-solving and communication are essential.