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 up-to-date 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 clear 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