Responsibilities

- Drive end to end design and development of enterprise applications using RPGLE COBOL 400 and AS400 COBOL to deliver stable and scalable business solutions for global stakeholders.
- Coordinate hybrid model project activities by planning onsite and work from home schedules to ensure consistent progress and predictable delivery of milestones across the team.
- Analyze existing AS400 applications and DB2 400 database structures to identify modernization opportunities that improve maintainability performance and long term value.
- Implement optimized database access patterns in DB2 400 by refining queries and data models to reduce response time and enhance transaction throughput for core business processes.
- Review and refactor legacy COBOL 400 and RPGLE code to improve readability reliability and alignment with current organizational coding standards for maintainable systems.
- Create detailed technical specifications and program level documentation for all AS400 changes to support effective knowledge sharing and smooth transition during maintenance activities.
- Collaborate with business analysts and product partners to translate functional requirements into detailed technical solutions that balance performance risk and cost.
- Perform rigorous unit system and regression testing for RPGLE and COBOL 400 components to detect defects early and maintain high production stability.
- Mentor less experienced engineers by providing code review feedback and practical guidance on AS400 development techniques to uplift overall team capability.




- Coordinate defect triage and root cause analysis for production incidents in AS400 applications to restore services quickly and prevent issue recurrence.
- Engage with infrastructure and operations teams to plan deployments for AS400 programs and DB2 400 objects ensuring safe rollout and clear rollback strategies.
- Monitor key application and database performance indicators to proactively identify capacity issues and propose technical improvements for sustainable growth.
- Ensure adherence to secure coding practices and regulatory requirements in all RPGLE and COBOL 400 solutions to protect sensitive enterprise and customer information.

Qualifications

- Possess eight to twelve years of progressive experience in enterprise application development with strong focus on RPGLE COBOL 400 DB2 400 and AS400 platforms.
- Demonstrate advanced proficiency in designing coding testing and debugging RPGLE and COBOL 400 programs for complex transactional and batch processing workloads.
- Exhibit solid working knowledge of DB2 400 design normalization indexing and query optimization techniques to support high volume data processing solutions.
- Apply practical experience in analyzing refactoring and modernizing legacy AS400 applications to align with current technology and organizational standards.
- Use effective communication and coordination skills to work with cross functional teams in a hybrid work environment ensuring clarity of goals and outcomes.
- Display strong problem solving abilities in diagnosing performance issues and production incidents within AS400 and DB2 400 ecosystems.
- Adapt quickly to new tools and methodologies relevant to IBM i platform development while continuously improving engineering practices and delivery quality.

📌 As400 Developer (Chennai)
🏢 Cognizant
📍 Chennai