Tata Consultancy Services

Sr. Mainframe Rehosting Specialist

Tata Consultancy Services$100K — $130K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 5-7 years of direct experience in mainframe technologies such as COBOL, PL1, Assembler, and CICS
  • Hands-on expertise with Raincode and Micro Focus for rehosting
  • Strong track record of managing mainframe modernization initiatives
  • Extensive knowledge in database migration, particularly DB2 SQL Server
  • Proficiency in Azure cloud architecture and integration strategies
  • Experience with application dependency mapping and performance optimization
  • Ability to mentor teams in mainframe modernization techniques

Responsibilities

  • Lead mainframe rehosting initiatives and define rehosting strategies
  • Perform application transformation on legacy systems and conduct code remediation
  • Oversee database migration and establish data transformation strategies
  • Design and implement Azure-based solutions for migrated workloads
  • Ensure performance optimization and high availability post-migration
  • Collaborate with teams for migration planning, execution, and testing
  • Drive governance by defining migration standards and risk mitigation strategies

Benefits

  • Flexible work arrangements
  • Opportunities for professional development and mentorship
  • Access to cutting-edge technology and tools
  • Collaboration with cross-functional teams
  • Support for certifications in cloud and modernization technologies
Full Job Description
Job Description:-

Key Responsibilities

1. Mainframe Rehosting & Modernization
• Lead mainframe rehosting initiatives using:

o Raincode (Mandatory)

o Micro Focus (Mandatory)
• Define and execute:

o Rehosting (Lift & Shift) strategies

o Replatforming and selective refactoring approaches
• Drive mainframe transformation programs (extremely good to have)
• Develop modernization roadmaps, timelines, and execution plans

2. Hands-On Application Transformation
• Perform deep technical work on legacy systems built with:

o COBOL (Mandatory)

o PL1 (Mandatory)

o Assembler (Mandatory)

o CICS (Mandatory)
• Analyze and modernize:

o JCL, IMS, DB2, VSAM-based applications
• Good to have: Eztrieve
• Execute:

o Code remediation

o Conversion val idation

o Runtime behavior fixes

3. Database Migration & Data Transformation
• Lead DB2 SQL Server migration (Mandatory)
• Define:

o Data mapping and transformation strategies

o Reconciliation and validation processes
• Ensure:

o Data integrity

o Performance optimization

o Minimal downtime during cutover

4. Azure Cloud Enablement
• Design and implement Azure-based solutions:

o Compute (VMs, rehosted workloads)

o Networking (VNETs, hybrid connectivity)

o Storage

o Security (RBAC, Key Vault)
• Enable integration between:

o Rehosted applications

o Modern cloud services and APIs

5. Performance & Optimization
• Ensure post-migration:

o Performance parity or improvement vs. mainframe

o High availability and disaster recovery
• Optimize:

o Batch jobs and scheduling

o Online transaction processing systems

6. Migration Delivery & Execution
• Work closely with:

o Application teams

o Cloud engineers

o DevOps and QA teams

o Business stakeholders
• Lead:

o Migration planning

o Execution

o Testing and validation

o Cutover and go-live

7. Governance, Risk & Best Practices
• Define and enforce:

o Migration standards and frameworks

o Architecture best practices
• Identify:

o R isks and dependencies
• Implement mitigation strategies across the migration lifecycle

8. Testing & Post-Migration Support
• Drive:

o Functional, integration, and performance testing
• Support:

o Cutover execution

o Hypercare and stabilization
• Conduct:

o Post-migration optimization and tuning

9. Mentorship & Technical Leadership
• Provide hands-on leadership and guidance to engineering teams
• Mentor developers on:

o Mainframe modernization techniques

o Rehosting tools and cloud adoption strategies

Required Skills & Qualifications

Mainframe Technologies (Mandatory)
• Strong hands-on experience with:

o COBOL

o PL1

o Assembler

o CICS
• Strong knowledge of:

o JCL, IMS, DB2, VSAM

o Batch and online processing systems

Rehosting & Modernization (Mandatory)
• Hands-on experience with:

o Raincode (Mandatory)

o Micro Focus (Mandatory)
• Proven experience in:

o Mainframe modernization programs (Extremely good to have)
• Expertise in:

o Code analysis and remediation

o Application dependency mapping

Database Migration (Mandatory)
• Strong experience in:

o DB2 SQL Server migration
• Deep understanding of:

o Data transformation and validation

o Migration best practices

Cloud (Azure)
• Strong experience designing solutions on:

o Mic

About Tata Consultancy Services

Tata Consultancy Services (TCS) is an Indian multinational information technology (IT) services and consulting company, headquartered in Mumbai, Maharashtra, India. It is a subsidiary of Tata Group and operates in 149 locations across 46 countries. TCS is the largest Indian company by market capitalization and is ranked 11th on the Forbes Global 2000 list of the world's biggest public companies. TCS is also the second-largest IT services company in the world by revenue and the largest employer of women in India. The company provides services in areas including IT, consulting, and business solutions.
Learn more about Tata Consultancy Services
Size
469,261 employees
Industry

Similar Jobs

More Jobs at Tata Consultancy Services

  • Tata Consultancy Services
    Senior Engineer - Networks
    $100K — $120K *
    New York, NY 10025 (New York County)
    Information Technology
    In-Person
  • Tata Consultancy Services
    MAC Server Administration
    $110K — $120K *
    Charlotte, NC 28269 (Mecklenburg County)
    Information Technology
    In-Person
  • Tata Consultancy Services
    Client Partner for Utilities
    $175K — $237K *
    Houston, TX 77084 (Harris County)
    Energy & Utilities
    In-Person
  • Tata Consultancy Services
    SAP ABAP for HANA
    $130K — $150K *
    Seattle, WA 98115 (King County)
    Information Technology
    In-Person
  • Tata Consultancy Services
    AI Agentic Engineer
    $100K — $120K *
    Detroit, MI 48228 (Wayne County)
    Enterprise Technology
    In-Person

More Information Technology Jobs

Find similar Sr. Mainframe Rehosting Specialist jobs: