# Senior COBOL Developer

> Weekday AI · Bengaluru, India · Full-time · Posted 2026-07-09

**Workplace:** on_site

**Department:** Weekday's Client via platform

## Description

**This role is for one of Weekday’s clients  
**  
Min Experience: 6+ years  
Location: Banglaore  
JobType: full-time

## Requirements

**ESSENTIAL DUTIES AND RESPONSIBILITIES:**  
 COBOL / AS400 (IBM i) Development:  
 Design, develop, and enhance COBOL applications on AS400 (IBM i) platform.  
 Build new modules and functionalities based on business requirements.  
 Refactor and optimize existing code for performance, scalability, and maintainability.  
 Follow structured programming practices and modular design principles.  
 Design and implement DB2 database structures, including physical and logical files.  
 Write efficient embedded SQL within COBOL programs.  
 Perform query optimization, indexing, and performance tuning.  
 Ensure efficient data access and processing strategies.

**Required Skills & Experience:**  
 6–10 years of hands-on experience in COBOL development on AS400 (IBM i).  
 Strong expertise in DB2 and embedded SQL.  
 Experience with CL programming and job execution.  
 Strong understanding of batch processing and file handling.  
 Solid experience in application development, enhancement, and performance tuning.  
 Strong analytical and problem-solving skills.

**Regular Tasks Required:**  
 Translate business requirements into high-quality technical solutions.  
 Write clean, efficient, and well-documented COBOL code.  
 Conduct unit testing and support integration testing activities.  
 Participate in code reviews and enforce coding standards.  
 Create and maintain technical documentation (design specs, program logic, workflows).  
 Collaborate with cross-functional teams (analysts, QA, architects) to deliver features.  
 Continuously improve code quality and development practices.

**Useful but non mandatory skills:**  
 Experience with IBM i modernization initiatives.  
 Exposure to RPG / ILE concepts.  
 Familiarity with API integration or enabling legacy systems for modern interfaces.  
 Experience with version control and change management tools - Aldon.  
 

**QUALIFICATIONS AND EDUCATION REQUIREMENTS:**  
 Bachelor’s/Master’s Degree in Engineering, Computer Science (or equivalent experience)

 At least 6+ years of relevant experience as a Cobol developer on AS400 (IBM i)  
 Excellent communication abilities to work with stakeholders and developers successfully  
 Excellent problem-solving and analytical skills  
 Fluent in conversational and written English communication skills

### Must-have skills

COBOL, AS400, DB2

### Good-to-have skills

Embedded SQL, CL Programming, Aldon

## Apply

[Apply at Weekday AI](https://apply.workable.com/weekday-1/j/E55DACB24F/apply)

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