Migration Architect - Mainframe to GCP - Practicing Solution Architect

Capgemini • Chicago, IL

13d • Hybrid

About The Position

The Capgemini team offers extensive career opportunities and provides mentoring and coaching for teammates. This role is an experienced professional with a strong background in software development. Your role Lead enterprise mainframe modernization initiatives by designing resilient target architectures on Google Cloud Platform. Serve as a strategic advisor to VP-level client stakeholders to drive high-stakes modernization conversations. Guide executive steering committees, build consensus, and demystify complex legacy-to-cloud transformation roadmaps. Champion automation and Agentic AI workflows to streamline the migration lifecycle and optimize project delivery. The Hands On Migration Architect – Mainframe to GCP is a deeply technical role responsible for designing, building, migrating, and troubleshooting large scale mainframe workloads as they are modernized and moved to GCP Strong hands on expertise across mainframe systems, cloud infrastructure, application modernization, data migration, and automation, with the architect actively participating in POCs, migration builds, performance tuning, cutover execution, and production stabilization.

Requirements

• 12+ years in enterprise application and platform architecture.
• 6+ years of hands on experience in mainframe modernization or large scale legacy transformations.
• Proven experience leading mainframe to cloud migration programs for large enterprises.
• Strong hands on expertise across mainframe systems, cloud infrastructure, application modernization, data migration, and automation.

Responsibilities

• Lead enterprise mainframe modernization initiatives by designing resilient target architectures on Google Cloud Platform.
• Serve as a strategic advisor to VP-level client stakeholders to drive high-stakes modernization conversations.
• Guide executive steering committees, build consensus, and demystify complex legacy-to-cloud transformation roadmaps.
• Champion automation and Agentic AI workflows to streamline the migration lifecycle and optimize project delivery.
• Design, build, migrate, and troubleshoot large scale mainframe workloads as they are modernized and moved to GCP.
• Actively participate in POCs, migration builds, performance tuning, cutover execution, and production stabilization.
• Architect parallel-testing strategies using Google Cloud Dual Run to replicate live traffic and ensure functional equivalence.
• Utilize Cloud Pub/Sub, BigQuery, Cloud Storage, and GKE to support the Dual Run ecosystem and data telemetry.
• Build decoupled, event-driven integration layers and manage hybrid connectivity between legacy data systems and modern APIs.
• Lead assessment and discovery of legacy mainframe environments COBOL / PL I, CICS / IMS, DB2, VSAM, JCL, batch workloads.
• Design end to end GCP architecture covering application, data, integration, security, and network layers.
• Define landing zone architecture.
• Ensure architectures meet enterprise security, compliance, and regulatory expectations.

Benefits

• Paid time off based on employee grade (A-F), defined by policy: Vacation: 12-25 days, depending on grade
• Company paid holidays
• Personal Days
• Sick Leave
• Medical, dental, and vision coverage (or provincial healthcare coordination in Canada)
• Retirement savings plans (e.g., 401(k) in the U.S., RRSP in Canada)
• Life and disability insurance
• Employee assistance programs
• Other benefits as provided by local policy and eligibility

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed