Sr. Mainframe Rehosting Specialist Role Overview We are seeking a highly skilled Sr. Mainframe Rehosting Specialist (10+ years) to lead and execute large-scale mainframe modernization and rehosting initiatives. This is a deeply hands-on technical role, requiring strong expertise in mainframe technologies, rehosting platforms (Raincode/Micro Focus), and cloud modernization (Azure). The ideal candidate will drive end-to-end transformation, from assessment through migration and post-migration optimization. Key Responsibilities

1. Mainframe Rehosting & Modernization Lead mainframe rehosting initiatives using: Raincode (Mandatory) Micro Focus (Mandatory) Define and execute: Rehosting (Lift & Shift) strategies 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: COBOL (Mandatory) PL1 (Mandatory) Assembler (Mandatory) CICS (Mandatory) Analyze and modernize: JCL, IMS, DB2, VSAM-based applications Good to have: Eztrieve Execute: Code remediation Conversion validation Runtime behavior fixes
3. Database Migration & Data Transformation Lead DB2 → SQL Server migration (Mandatory) Define: Data mapping and transformation strategies Reconciliation and validation processes Ensure: Data integrity Performance optimization Minimal downtime during cutover
4. Azure Cloud Enablement Design and implement Azure-based solutions: Compute (VMs, rehosted workloads) Networking (VNETs, hybrid connectivity) Storage Security (RBAC, Key Vault) Enable integration between: Rehosted applications Modern cloud services and APIs
5. Performance & Optimization Ensure post-migration: Performance parity or improvement vs. mainframe High availability and disaster recovery Optimize: Batch jobs and scheduling Online transaction processing systems
6. Migration Delivery & Execution Work closely with: Application teams Cloud engineers DevOps and QA teams Business stakeholders Lead: Migration planning Execution Testing and validation Cutover and go-live
7. Governance, Risk & Best Practices Define and enforce: Migration standards and frameworks Architecture best practices Identify: Risks and dependencies Implement mitigation strategies across the migration lifecycle
8. Testing & Post-Migration Support Drive: Functional, integration, and performance testing Support: Cutover execution Hypercare and stabilization Conduct: Post-migration optimization and tuning
9. Mentorship & Technical Leadership Provide hands-on leadership and guidance to engineering teams Mentor developers on: Mainframe modernization techniques Rehosting tools and cloud adoption strategies Required Skills & Qualifications ✅ Mainframe Technologies (Mandatory) Strong hands-on experience with: COBOL PL1 Assembler CICS Strong knowledge of: JCL, IMS, DB2, VSAM Batch and online processing systems ✅ Rehosting & Modernization (Mandatory) Hands-on experience with: Raincode (Mandatory) Micro Focus (Mandatory) Proven experience in: Mainframe modernization programs (Extremely good to have) Expertise in: Code analysis and remediation Application dependency mapping ✅ Database Migration (Mandatory) Strong experience in: DB2 → SQL Server migration Deep understanding of: Data transformation and validation Migration best practices ✅ Cloud (Azure) Strong experience designing solutions on: Microsoft Azure Knowledge of: Hybrid cloud architectures Infrastructure and security ✅ Core Engineering Strong hands-on development and troubleshooting experience Ability to: Debug complex legacy systems Resolve migration issues Optimize application performance Nice to Have Eztrieve DevOps tools (Azure DevOps, Jenkins, Git) Containerization / microservices exposure Experience in BFSI / Insurance / enterprise systems