Data Migration Architect

Job Summary

We are seeking an experienced Data migration Architect professional to lead end to end migration from mainframe IBM DB2 to Postgres on AWS platform. The role involves defining migration strategy and architecture, overseeing execution, ensuring data quality and reconciliation.

Roles & Responsibilities

• Design scalable source to target data models, mapping legacy structures to modern platforms
• Establish migration patterns (big bang, phased, wave based, or domain wise)
• Drive data decomposition strategies for large and tightly coupled mainframe datasets
• Ensure architecture aligns with performance, security, audit, and compliance requirements
• Lead end to end data migration delivery across multiple pods / workstreams
• Oversee data extraction, transformation, loading (ETL/ELT) from Mainframe sources
• Govern batch sequencing, dependency management, restartability, and error handling
• Ensure zero or minimal business disruption during migration cycles
• Coordinate with application, testing, and infrastructure teams for integrated delivery
• Own pre and post migration reconciliation sign off
• Drive defect triage and root cause analysis for data discrepancies
• Ensure auditability and traceability across migration runs
• Plan and execute mock migrations and dress rehearsals
• Lead cutover planning, including rollback and contingency strategies
• Support parallel runs and controlled transition from Mainframe to target systems
• Work closely with business stakeholders to validate data correctness post go live
• Establish migration governance frameworks and reporting mechanisms
• Identify and mitigate data migration risks, including data loss, corruption, and performance bottlenecks
• Provide regular status, risk, and dependency updates to senior stakeholders
• Support client workshops on migration approach, risk posture, and readiness

Skills Required

• Building Data migration Automation using Claude Agents and exposure on API programming language
• End to end legacy to target data migration covering extraction, transformation, validation, and reconciliation
• Migration of high volume, mission critical telecom data with strict SLAs and regulatory requirements
• Strong understanding of batch processing, file based data movement, and scheduling frameworks
• Experience migrating data to Postgres on AWS cloud platform
• Experience in Python, Pyspark
• Data quality, reconciliation, control totals, audit checks, and post migration assurance

Benefits

Joining Cognizant will give you the opportunity to learn and collaborate with some of the most talented people in the industry, while having your finger on the pulse of emerging industry trends and working on the cutting edge of technology in your field of expertise.

• You can pursue innovative career tracks and opportunities here
• You can enhance your professional development through education and dedicated training
• We'll give you the skills you need to keep pace with the changing workplace while our compensation, benefits and wellness packages help you stay healthy and plan for the future