Application development
Senior COBOL development, maintenance, code review, DB2 and VSAM data work, and system testing.
Mainframe & modernization
Focused recruiting for systems that cannot stand still.
Resourcesys recruits for IBM Z mainframe application development, testing support, L2 production support, and modernization work in production-critical enterprise environments.
20
Recent engagement
Senior mainframe professionals placed in one regulated payments-processing enterprise environment.
Where the practice fits
Specific experience for production-critical work.
The environment, business domain, release process, and production responsibility all shape the right profile.
Resourcesys focuses each search around the platform, codebase, responsibilities, modernization objective, timeline, and engagement model.
What we recruit for
Core capabilities across IBM Z environments.
Our mainframe and modernization work is grounded in application delivery, support, and controlled change.
Testing and release support
Development and testing environments, deployment readiness, batch processing, and release coordination.
Production operations
Diagnostics, troubleshooting, issue resolution, and L2 production support for high-consequence systems.
Modernization context
Staffing that helps teams maintain core platforms while modernization and integration work progresses.
Representative technical environment
Languages & dataCOBOL · DB2 · VSAM
Execution & schedulingJCL · Batch Processing · CA7
Change & operationsEndevor · Testing Support · L2 Production Support
Representative assignment profiles
Work that calls for context.
Application development
Design, development, maintenance, code review, and testing across COBOL, DB2, VSAM, JCL, and batch applications.
COBOLDB2VSAM
Production support
Environment support, deployment readiness, CA7 scheduling, Endevor change management, troubleshooting, and L2 resolution.
CA7EndevorL2 Support
Transaction processing
Experience aligned to acquiring, settlement, clearing, funding, billing, and dispute workflows.
SettlementClearingDisputes
Experience our consultants bring
Modernization work with production consequences.
The right mainframe profile comes from context: the platform, the delivery environment, the release process, and the responsibility carried by the work. These stories show the kind of consultant experience Resourcesys recruits for.
01Mainframe modernization
Standardizing a modern development experience across enterprise teams.
A mainframe modernization program needed a more consistent, secure, and scalable way for multiple engineering groups to work in cloud-hosted environments.
Focus
Workspace standardization, DevSecOps, AI-assisted development, Zowe and Endevor integration, and platform reliability.
What this experience looks like in a hire
Consultants may bring experience standardizing workspaces, supporting onboarding, documenting modernization guidance, working with security scanning, and helping engineering teams adopt updated tooling.
Cloud workspacesZoweEndevorFortifyAI enablement
02Production support
Supporting posting and fee billing in a complex mainframe environment.
A production-critical payments environment required dependable application support, enhancement work, and impact analysis across multiple regions and processing dependencies.
Focus
COBOL, JCL, VSAM, DB2, batch execution, production troubleshooting, and controlled change across related applications.
What this experience looks like in a hire
Consultants may bring experience reading interconnected applications, performing impact analysis, supporting batch and production workflows, and working within controlled-change processes.
COBOLDB2VSAMJCLBatch
Summarized and anonymized from consultant experience. Detailed outcomes and client references are shared only when publication approval is in place.
Start with the environment
