Lead Mainframe Engineer — AI-Driven Modernization

Valiant Technologies LLC

Denver (CO)

On-site

USD 120,000 - 160,000

Full time

5 days ago

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Job summary

Valiant Technologies LLC seeks a Lead Software Engineer to join the Safe Deposit Box Modernization team, focusing on the Mainframe System of Record Application. You will evaluate, plan, and support modernization efforts, incorporating AI-assisted discovery, code and dependency analysis, and technical documentation with proper human review and risk controls.

The role requires expert COBOL, JCL, and z/OS experience, with strong collaboration across enterprise systems and Agile delivery.

Qualifications

5+ years of software engineering with IBM z/OS mainframe apps.
5+ years COBOL, structured and modular programming, and debugging.
5+ years JCL, PROC, batch schedules, utilities, and abends.
3+ years VSAM (ESDS/KSDS/RRDS) structures and IDCAMS.
3+ years CICS with Db2/IMS and data access/perf analysis.
3+ years integrating mainframe apps with MQ, Kafka, APIs or MFT.
Experience with source-control, build, testing, and deployment in z/OS environments.
Exposure to Agile software delivery lifecycle and documentation.
Familiarity with AI-assisted engineering tools for mainframe discovery and modernization with human validation.

Responsibilities

Analyze, design, and develop strategic mainframe modernization solutions.
Interface with enterprise systems of record, architecture, frontend, and middleware.
Resolve issues, test solutions, and create end-to-end test data with partners.
Perform production research and validate implementations in production.
Ensure appropriate validation, security, and risk controls for AI-assisted outputs.