Mainframe Developer – Cloud Migration

Shiro Technologies LLC; Dallas (TX); On-site; USD 120,000 - 170,000; Full time

Job summary

Shiro Technologies LLC in Dallas seeks an experienced Mainframe Developer skilled in COBOL, JCL, DB2, and VSAM to drive modernization and cloud migration initiatives.

You will analyze legacy applications, support rehosting and data migration, and collaborate with cloud architects, DevOps, and stakeholders to ensure performance and data integrity.

Bonus: experience with AWS Mainframe Modernization, CICS, or migration automation tools is a plus.

Qualifications

• Proven experience developing mainframe applications using COBOL, JCL, DB2 and VSAM.
• Experience migrating legacy systems to cloud platforms (AWS/Azure/GCP).
• Understanding of mainframe modernization strategies and data migration.
• Familiarity with SQL, APIs, data integration, and testing.

Responsibilities

• Develop, maintain, and troubleshoot mainframe applications.
• Support mainframe migration, modernization, and cloud integration.
• Analyze legacy apps for migration readiness and data dependencies.
• Collaborate with cloud architects, DevOps, and stakeholders.
• Perform testing, data validation, and post-migration support.

Tools

COBOL

JCL

DB2

VSAM

AWS

Azure

Google Cloud Platform

Cloud Migration

CI/CD

APIs

Job description

We are seeking an experienced Mainframe Developer with strong expertise in COBOL, JCL, DB2, and VSAM, along with experience in mainframe modernization and cloud migration. The candidate will support migrating legacy applications and data to cloud platforms while ensuring system performance, data integrity, and business continuity.

Key Responsibilities

• Develop, maintain, and troubleshoot mainframe applications using COBOL, JCL, DB2, and VSAM.
• Support mainframe migration, modernization, and integration with cloud platforms.
• Analyze legacy applications and dependencies for cloud migration readiness.
• Assist with application rehosting, replatforming, refactoring, and data migration.
• Perform testing, data validation, debugging, and post-migration support.
• Collaborate with cloud architects, DevOps teams, and business stakeholders.

Required Skills

• Strong hands-on experience with COBOL, JCL, DB2, and VSAM.
• Experience with IBM mainframe environments and batch processing.
• Knowledge of cloud platforms such as AWS, Azure, or Google Cloud Platform.
• Understanding of mainframe modernization and cloud migration strategies.
• Familiarity with SQL, APIs, data integration, and application testing.
• Knowledge of DevOps and CI/CD practices is an advantage.

Preferred: Experience with AWS Mainframe Modernization, CICS, Control-M, and migration automation tools.