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Aarifur Rahman

Mainframe Developer | COBOL | JCL | DB2 | SQL | Production Support | Incident Management

Chennai

5+ years of work experience

Infosys
Apr 20251 yr 2 mosPresent

Chennai, Tamil Nadu, India

Provide 24/7 production support for manufacturing applications, resolving P1/P2 incidents. Perform root cause analysis for job abends and production failures. Develop and enhance applications using COBOL, JCL, and DB2. Optimize DB2 SQL queries to improve batch job performance. Manage incidents and change requests using ServiceNow and Jira. Support testing activities including unit testing and UAT validation.
Infosys
Apr 20241 yr 1 moApr 2025

Chennai, Tamil Nadu, India

Infosys
Jun 20221 yr 11 mosApr 2024

Chennai, Tamil Nadu, India

Doing project on vehicle logistics related to mainframe technology
Amphenol
Oct 20201 yr 5 mosFeb 2022

Chennai, Tamil Nadu, India

Wire Harness Manufacturing

Aarifur’s AI Stack

aistudio
aistudio
gemini
gemini
github copilot
github copilot
openai
openai

Education

Dhaanish Ahmed College of Engineering

Bachelor of Engineering - BE, Electrical and Electronics Engineering

Dhaanish Ahmed College of Engineering

20164 yrs2020
Madras University

Master of Business Administration - MBA, Business and Data Analytics

Madras University

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Headline

Mainframe Developer | COBOL | JCL | DB2 | SQL | Production Support | Incident Management

About

Mainframe Developer with 4+ years of experience in application development and 24/7 production support for enterprise systems in manufacturing and financial domains. Currently working at Infosys, supporting business-critical applications and ensuring system stability and performance. Experienced in COBOL, JCL, DB2, and SQL with strong expertise in troubleshooting batch job abends, incident management, and root cause analysis. Proven ability to optimize DB2 queries and improve batch job performance. Skilled in ServiceNow, Jira, Agile practices, and cross-team collaboration to ensure timely delivery and system reliability. Additionally building skills in Python, Power BI, and Cloud technologies while pursuing an MBA in Business & Data Analytics. Interested in modernizing legacy systems and integrating data analytics with enterprise platforms.

Location

Chennai

AI stack

aistudio

gemini

github copilot

openai

Work experience

Technology Analyst at Infosys, Apr 2025 - Present · 1 yr 2 mos, Chennai, Tamil Nadu, India, Provide 24/7 production support for manufacturing applications, resolving P1/P2 incidents. Perform root cause analysis for job abends and production failures. Develop and enhance applications using COBOL, JCL, and DB2. Optimize DB2 SQL queries to improve batch job performance. Manage incidents and change requests using ServiceNow and Jira. Support testing activities including unit testing and UAT validation.

Senior System Engineer at Infosys, Apr 2024 - Apr 2025 · 1 yr 1 mo, Chennai, Tamil Nadu, India

System Engineer at Infosys, Jun 2022 - Apr 2024 · 1 yr 11 mos, Chennai, Tamil Nadu, India, Doing project on vehicle logistics related to mainframe technology

Graduate Engineering Trainee at Amphenol, Oct 2020 - Feb 2022 · 1 yr 5 mos, Chennai, Tamil Nadu, India, Wire Harness Manufacturing

Education

Bachelor of Engineering - BE, Electrical and Electronics Engineering, Dhaanish Ahmed College of Engineering

Master of Business Administration - MBA, Business and Data Analytics, Madras University

Aarifur Rahman - Technology Analyst in Chennai | Tal