Jones Antony
Chennai
Summary
Mainframe Developer and Production Support Specialist with 6 years of experience in enterprise application development, maintenance, and production support. Proficient in COBOL, JCL, VSAM, and DB2, with expertise in batch processing, abend analysis, incident management, root cause analysis, and defect resolution. Experienced in legacy mainframe migration to AWS Micro Focus, including application compatibility and performance validation. Skilled in AI assisted development, application troubleshooting, and SDLC practices, with a strong focus on system reliability, operational efficiency, and adherence to production SLAs
Overview
1
1
Certificate
2027
2027
years of professional experience
Work History
Mainframe Developer
Cognizant Technology Solution
Chennai
2020 - Current
- Designed and deployed applications on IBM Mainframes using COBOL, JCL, DB2, and VSAM technologies.
- Developed and debugged COBOL programs for mainframe applications, enhancing overall performance.
- Migrated legacy mainframe application code to AWS Micro Focus environment, ensuring stable and efficient operations.
- Resolved technical issues during system testing phases to ensure timely project delivery.
- Conducted Root Cause Analysis on production issues, implementing permanent solutions to enhance system reliability.
- Executed thorough unit testing of developed programs and documented outcomes.
- Collaborated with functional analysts and testers throughout the SDLC to maintain project alignment.
- Participated in project meetings to review timelines and deliverables with management.
- Leveraged Github Copilot for AI-assisted code development, generating code suggestions and accelerating routine coding tasks.
Education
Bachelor of Engineering - Mechanical Engineering
Muthayammal Engineering College
01-2020
HSC - Biology & Mathematics
Sishya Matric Higher Secondary School
01-2016
SSLC -
Jayam Matric Higher Secondary School
01-2014
Skills
- COBOL programming
- JCL expertise
- DB2 database management
- AI-assisted development
- Technical troubleshooting
- Code review
- SDLC compliance
- Root cause analysis
- Documentation standards
- Change management
- Analytical skills
- Problem-solving
Certification
- GitHub Copilot - AI Augmented Software Engineer - Cognizant
- Gen AI Fundamentals - Cognizant
- Context Engineering Foundation - Cognizant
Timeline
Mainframe Developer
Cognizant Technology Solution
2020 - Current
Bachelor of Engineering - Mechanical Engineering
Muthayammal Engineering College
HSC - Biology & Mathematics
Sishya Matric Higher Secondary School
SSLC -
Jayam Matric Higher Secondary School
Project Details
1. Lincoln Financial Group (LFG)
2. Fiserv
Domain: Insurance & Financial Services
Role: Mainframe Developer / Production Support .
Key Responsibilities:
- Developed and maintained COBOL programs based on business requirements.
- Supported migration to AWS Micro Focus, including application compatibility validation.
- Performed production troubleshooting, abend analysis, and root cause analysis.
- Resolved application defects and supported batch job recovery.
- Executed unit and regression testing.
Domain: Banking & Financial Technology
Role: Mainframe Developer / Production Support
Key Responsibilities:
- Developed and maintained COBOL programs for business requirements.
- Leveraged AI-assisted tools for code analysis, debugging, and technical documentation.
- Investigated production incidents, batch failures, and application errors.
- Performed root cause analysis and implemented defect fixes.
- Supported regression testing, release validation, and production SLA adherence.
Awards and Recogniton
1. Received Multiple accolades and formal recognition from client leadership team for proactively resolving the major incidents well ahead of SLAs, thereby mitigating potential financial loses and ensuring uninterrupted performance of business-critical applications.
2. Bronze award for migrating the mainframe CICS elements to microfocus AWS environment – 2023 DEC in COGNIZANT.
3. Gold award for working as one and gaining experience in all the corporate applications in a short time – 2022 DEC in COGNIZANT
4. Bronze award for Smart Work & Multi-tasking – 2021 DEC in COGNIZANT
References
References available upon request.
Tools
- Scheduling software: CA-7, IZWS, Zena
- Code version control: Endevor, GitHub, LCM
- Operating systems: IBM z/OS, AWS - Micro Focus
- AI tool: GitHub Copilot
Project Details
1. Lincoln Financial Group (LFG)
Domain: Insurance & Financial Services
Role: Associate - Mainframe Developer / Production Support
Key Responsibilities:
- Developed and maintained COBOL programs based on business requirements.
- Supported migration to AWS Micro Focus, including application compatibility validation.
- Performed production troubleshooting, abend analysis, and root cause analysis.
- Resolved application defects and supported batch job recovery.
- Executed unit and regression testing.
.
2. Fiserv
Domain: Banking & Financial Technology
Role: Senior Associate - Mainframe Developer / Production Support
Key Responsibilities:
- Developed and maintained COBOL programs for business requirements.
- Leveraged AI-assisted tools for code analysis, debugging, and technical documentation.
- Investigated production incidents, batch failures, and application errors.
Performed root cause analysis and implemented defect fixes. - Supported regression testing, release validation, and production SLA adherence.
Awards and Recogniton
- Received multiple client leadership accolades for resolving critical incidents ahead of SLA deadlines, mitigating potential financial losses, and ensuring uninterrupted business operations.
- Bronze award for migrating the mainframe CICS elements to microfocus AWS environment – 2023 DEC in COGNIZANT.
- Gold award for working as one and gaining experience in all the corporate applications in a short time – 2022 DEC in COGNIZANT
- Bronze award for Smart Work & Multi-tasking – 2021 DEC in COGNIZANT