Job Description

Job Summary

We are looking for an experienced Mainframe Senior Developer with 8+ years of experience in mainframe application development, maintenance, and support. The ideal candidate should have strong hands-on experience with Mainframe technologies, IBM DB2 and, along with the ability to analyze business requirements, develop technical solutions, troubleshoot issues, and deliver high-quality code.

Key Responsibilities

• Design, Develop and maintain mainframe programs using COBOL, JCL, and other relevant technologies.
• Design, develop, enhance, and maintain mainframe applications using IBM DB2 and related mainframe technologies.
• Write, optimize, and troubleshoot DB2 SQL queries and database operations.
• Perform impact analysis, root cause analysis, debugging, and production issue resolution.
• Participate in requirements analysis, technical design, coding, unit testing, and code reviews.
• Optimize application and database performance to ensure reliability and efficiency.
• Collaborate with business analysts, architects, QA teams,



and other technical stakeholders.
• Support application releases, deployments, and production maintenance activities.
• Prepare technical documentation and follow established coding standards and development best practices.

Required Skills

• 8+ years of hands-on experience in IBM Mainframe development.
• Strong hands-on experience with COBOL ,JCL and VSAM.
• Good experience with IBM DB2, including SQL queries, joins, subqueries, performance tuning, and database troubleshooting.
• Knowledge of mainframe development, debugging, and batch processing.
• Experience in application maintenance, enhancements, and production support.
• Robust analytical, problem-solving, and troubleshooting skills.
• Good communication skills and the ability to work effectively with distributed teams.

Preferred Skills

• Experience with CICS
• Knowledge of DB2 utilities and database performance optimization.
• Familiarity with mainframe

📌 Senior Mainframe Developer (Bengaluru)
🏢 Tieto
📍 Bengaluru