Rohan PLead design and delivery of modernization sprints migrating COBOL/CICS/JCL workloads from z/OS to distributed or cloud targets.
On-Site - St.-Denis, Île-de-France France
in Information Technology - Other
by mLogica
Key Responsibilities Solutioning & Design Perform codebase discovery, inventory, and dependency mapping (batch/online, DB2/VSAM/IMS, CICS/IMS TM/MQ). Define target state patterns for replatform (e.g., Micro Focus Enterprise Server/Enterprise Developer on Windows/Linux) or refactoring to Java/.NET using accelerators (e.g., Blu Age, Astadia, Modern Systems). Drive decisions on online emulation (e.g., UniKix/Tuxedo based) vs code transformation (e.g., Heirloom Java), considering performance/SLA, licensing, ops model, observability, and cost. Implementation Create/adapt build scripts, job controls, and JCL orchestration on target (schedulers like Control M/Airflow/Azure DevOps Pipelines/GitHub Actions). Convert or wrap CICS transactions and BMS maps; handle VSAM/DB2 access layers, MQ integration, and file transfers. Optimize runtime (threading, file I/O, dataset substitution, encoding/EBCDIC–ASCII), and tune Micro Focus/runtime parameters. Quality & Non Functionals Define test strategy (unit, component, batch window tests, regression, parallel run, reconciliation). Own observability, logging correlation, and resilience (retries, idempotency, checkpoint/restart). Cutover & Hypercare Conduct dress rehearsals, establish fallback, and support go live/hypercare with performance tuning and defect triage. Leadership Mentor engineers, review designs/PRs, enforce coding standards and secure coding. Required Technical Skills Core Mainframe: COBOL, JCL, CICS, VSAM, DB2 (or IMS DB/DC), REXX/ISPF, file utilities (SORT, IDCAMS). Replatforming/Refactoring Tooling (2+ of the following): Micro Focus (OpenText) Enterprise Server/Enterprise Developer; AMB/AMT/EDz experience a plus. UniKix (Tuxedo based CICS emulation) or equivalent CICS emulators. Heirloom (COBOL to Java, Java EE/Spring runtimes). Refactoring accelerators: Blu Age, Astadia, Modern Systems (Advanced). Integration/Infra: MQ, FTP/SFTP, API gateways, Linux/Windows admin basics, networking, TLS, certificates. Data & Migration: DB2 schema mapping, VSAM replacement (RDBMS/object storage), data conversion, parallel run & reconciliation patterns. DevOps/Cloud: Git, CI/CD, containers (Docker), artifact repos, and at least one cloud (AWS/Azure/GCP) for deployment/runtime and managed DBs. Nice to Have PL/I, Assembler exposure; IMS DC; Oracle/SQL Server/PostgreSQL; Kafka; Control M; Terraform; Kubernetes (AKS/EKS/GKE). Soft Skills Strong stakeholder communication, risk management, estimation, and mentoring.