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Tata Consultancy Services (TCS) is seeking a Mainframe / COBOL Developer to design, develop, and maintain reliable and high-performance mainframe applications, ensuring stability and efficiency across critical systems.
If you are passionate about mainframe technologies, legacy system optimization, and building robust enterprise applications using COBOL, this role is for you.
At TCS, we foster a culture of collaboration, innovation, and continuous improvement, offering long-term growth opportunities in a integral technology environment.
Key Responsibilities
- Design, code, test, and debug mainframe applications using COBOL, CICS, and JCL
- Maintain and enhance existing mainframe systems and applications
- Troubleshoot production issues and perform performance tuning and optimization
- Collaborate with system analysts, project managers, and cross-functional teams to gather requirements
- Develop and execute unit, system, integration, and regression testing
- Ensure application reliability, scalability, and data integrity
- Maintain detailed technical documentation of code and system processes




- Support system upgrades, enhancements, and ongoing improvements
- Follow best practices in SDLC and development standards

Required Skills & Qualifications
- 4 - 6 years of experience in mainframe development
- Strong proficiency in COBOL, JCL, and DB2
- Hands‑on experience with CICS
- Good understanding of mainframe environments and tools
- Experience with Software Development Life Cycle (SDLC)
- Strong problem‑solving and analytical skills
- Ability to troubleshoot and resolve complex technical issues
- Familiarity with version control and development methodologies

Preferred Qualifications
- Experience working in financial services, banking, or large enterprise systems
- Exposure to mainframe modernization initiatives
- Knowledge of batch processing and scheduling tools
- Familiarity with Agile methodologies

Other Requirements
- Ability to work in fast‑paced, cross‑functional

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📌 Mainframe COBOL Developer (Buenos Aires)
🏢 Tata Consultancy Services
📍 Buenos Aires