Senior COBOL Developer

# 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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