Senior Full Stack Mainframe Engineer

Senior Full Stack Mainframe Engineer
Contract on W2
Location: Dallas, TX
Experience: 8+ Years
Mandatory Skills:

COBOL, JCL, CICS, DB2, VSAM, Syncsort
REST APIs, XML/JSON, Production Support
Java, Spring Boot, AWS (Preferred)

The Senior Full Stack Mainframe Engineer will support critical Customer & Account Management (CAM) applications by developing, maintaining, and modernizing enterprise mainframe solutions. This role partners closely with distributed engineering teams to ensure platform stability, production reliability, and successful integration between legacy mainframe systems and modern cloud-native applications.

Responsibilities:
* Design, develop, maintain, and enhance enterprise mainframe applications supporting critical business functions.
* Develop and support applications using COBOL, JCL, CICS, DB2, VSAM, and Syncsort.
* Analyze and resolve complex production issues, perform root cause analysis, and implement long-term solutions.
* Support both batch and online transaction processing while ensuring high availability and operational stability.
* Collaborate with distributed engineering teams developing Java, Spring Boot, REST APIs, and AWS-based applications.
 
Required Qualifications:
* 8+ years of enterprise Mainframe development experience.
* Strong expertise in:
◦ COBOL
◦ JCL
◦ CICS
◦ DB2 (Native SQL and COBOL Stored Procedures)
◦ VSAM
◦ Syncsort
* Experience designing and integrating REST APIs using XML and JSON.
* Experience supporting high-volume, mission-critical production systems.
* Strong troubleshooting, analytical, and problem-solving skills.
* Experience working in Agile development environments.