We are looking for a Software Engineer with experience in DB2 on the iSeries (AS/400) platform to support our modernization initiatives. This role will primarily focus on reverse engineering and analyzing existing iSeries applications, documenting current system functionality, and creating clear technical diagrams to enable migration to a modern technology stack.

Post-migration, this engineer will also play a key role in supporting and maintaining the modernized solutions.

Key Responsibilities

· Analyze and reverse engineer existing iSeries (AS/400) applications and DB2 data structures

- Document current system functionality, workflows, and business logic
- Create detailed technical documentation and architecture/data flow diagrams to support modernization efforts
- Collaborate closely with Java and platform engineering teams to enable feature migration to modern systems
- Identify gaps, dependencies, and risks in legacy implementations during the discovery phase
- Support the design and validation of modernized solutions
- Transition to owning and maintaining the migrated features in the modern tech stack post-implementation
- Ensure knowledge transfer and continuity between legacy and modern platforms

Requirements

Required Qualifications





· Minimum 2+ years of experience with DB2 on iSeries (AS/400)

- Strong ability to analyze and understand legacy systems
- Experience creating technical documentation and diagrams (process flows, system architecture, data mapping)
- Solid SQL skills and understanding of database structures
- Strong analytical and problem-solving abilities
- Good communication skills, with the ability to translate legacy logic into explicit documentation

Preferred Qualifications (Nice to Have) · Experience with RPG, CL, or DDS on iSeries

- Familiarity with modern technology stack, including:

o Java / Spring Boot o Microservices architecture o Messaging systems (e.g., MQ) o Cloud platforms (AWS/Azure/GCP)

o Git/GitHub o CI/CD tools (e.g., Jenkins)

- Experience with system modernization or migration initiatives
- Exposure to API-driven or event-driven architectures

Ideal Candidate Profile · Strong ability to bridge legacy systems and modern technologies

- Detail-oriented with a focus on accuracy in reverse engineering and documentation
- Comfortable working in a transitional environment (legacy → modern)
- Willing to evolve into a full-stack or modern platform contributor after migration

📌 Software Engineer – iSeries/ Modernization Focus) (Chennai)
🏢 Staples India
📍 Chennai