Cobol Programmer

Tata Consultancy Services • singapore, singapore, Singapore • Posted June 12, 2026

Location singapore, singapore

Job Type Full-time

Category IT Services and IT Consulting

Posted June 12, 2026

Role: AS400 – COBOL DEVELPOR  
Location: Singapore  

Role Summary  
A Senior AS400 COBOL Developer designs, develops, and maintains core enterprise applications on the IBM iSeries (AS400) platform. 
Lead technical solutions, optimize database performance, and provide L3 production support, typically collaborating with stakeholders in the financial, banking, or logistics sectors. 

Core Responsibilities   

Application Development: Design, code, and test complex business applications using COBOL/400, CL (Control Language), and RPG. 
Database Management: Develop and optimize DB2/400 databases, write complex SQL queries, and manage data integrity. 
System Support: Provide Level 3 production support, troubleshoot batch job failures, analyze system issues, and implement root-cause fixes. 
Technical Leadership: Create technical spe...
            

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