COBOL Developer

Weekday (YC W21)

. Walk through COBOL repositories authored by the candidate, explaining program structure, business logic, and design decisions .

Posted 10/28/2026part-timeRemote • IndiaMid-LevelSenior💰 ₹1,000,000 - ₹8,000,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in COBOL development, including program structure, business logic, and legacy modernization. Proficient in evaluating and improving AI-generated COBOL code while providing clear documentation and feedback.

Highest-signal resume keywords

COBOL DevelopmentJCL ExperienceCOBOL Repository ManagementLegacy Modernization ProjectsClear Written Communication

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

COBOLData StructuresProcedural LogicJCLCICSDB2IMSVSAMCOBOL-to-Java MigrationCOBOL-to-C# Migration

Soft Skills

Clear Written FeedbackAbility to Explain Code

Tools & Technologies

IBM z/OSMicro Focus COBOLGnuCOBOLGitHubGitLabBitbucket

Industry Keywords

BankingInsuranceGovernmentMainframe

Tech Stack

Tools & technologies

JavaPython

About the role

Key responsibilities & impact

Walk through COBOL repositories authored by the candidate, explaining program structure, business logic, and design decisions
Write, review, and debug COBOL programs, including copybooks, JCL, and file handling (VSAM, sequential, indexed)
Evaluate AI-generated COBOL code for correctness, style, and maintainability
Provide clear written feedback
Create realistic tasks and test cases based on real-world mainframe and batch-processing scenarios
Document legacy patterns and modernization approaches, including COBOL-to-Java/C# migration and refactoring monolithic programs
Improve how modern AI systems understand, write, and modernize COBOL

Requirements

What you’ll need

3+ years of hands-on COBOL development
Created and own at least one meaningful COBOL repository (GitHub, GitLab, Bitbucket, or private codebase)
Strong grasp of COBOL divisions, data structures (PIC clauses, COMP/COMP-3, REDEFINES, OCCURS), and procedural logic
Experience with JCL and at least one of CICS, DB2, IMS, or VSAM
Clear written English and ability to explain code to non-experts
Experience with IBM z/OS, Micro Focus COBOL, or GnuCOBOL (nice to have)
Work in banking, insurance, government, or other mainframe-heavy industries (nice to have)
Exposure to legacy modernization projects (nice to have)
Familiarity with a modern language such as Java, Python, or C# (nice to have)

Benefits

Comp & perks

Flexible hours
Remote work