**Overview** We are executing a **large-scale modernization initiative for a leading and well-known client in the healthcare industry** . The goal is to migrate a legacy platform built on **COBOL, RPG, and DB2** to a modern architecture using **Databricks, React, and MongoDB** . The project involves extracting data and business logic from legacy programs, converting it into **JSON format** , and integrating it into modern cloud-based systems. As part of this transformation, We are seeking a **COBOL and RPG Subject Matter Expert (SME)** to lead the **analysis, documentation, and transformation** of legacy code and data structures. You will play a critical role in bridging legacy and modern systems, working alongside a multidisciplinary team of **Java, Python, and QA engineers** to ensure accurate migration of business logic and data. **Responsibilities** **Your Impact:** + Analyze and document existing **COBOL** and **RPG** programs, including business logic, batch/online flows, and system interactions. + Understand, map, and document **DB2** data structures and relationships. + Collaborate with engineering teams to define data extraction and transformation strategies. + Guide the conversion of legacy data into JSON format for ingestion into MongoDB and Databricks. + Serve as the technical lead and SME for all COBOL and RPG-related activities and inquiries. + Support QA and development teams in validating the completeness and accuracy of the migrated systems. + Identify risks and dependencies in legacy code and propose effective mitigation strategies. **Qualifications** **Your Skills and Experience:** + **8+ years of experience** in **COBOL** development, including both **batch and online** processing. + **5+ years of experience** with **RPG** (RPG III, IV, or Free Format). + Deep expertise in **DB2** and legacy relational data modeling. + Proven experience in **legacy system modernization** or **data migration** projects. + Proven ability to **reverse-engineer and interpret complex legacy codebases** . + Familiarity with **JSON** , **ETL processes** , and **modern data formats** . + Excellent communication and documentation skills, with the ability to collaborate across technical and non-technical teams. **Additional information** **Set Yourself Apart With:** + Experience in projects involving **MongoDB** , **Databricks** , or **cloud-based data platforms** . + Exposure to modern development practices and data engineering concepts. + Prior involvement in **greenfield system redesigns** or **technology transformation programs** . **Contract type: full-time contractor (40 hours/week)**