Mainframe Developer Software Development

AHSIS BRUK SEELT J

Junior Mainframe Developer COBOL, JCL, VSAM, CICS, DB2

Email: *********@*****.*** Mobile: +91-637******* LinkedIn: https://www.linkedin.com/in/ahsis-seelt

Location: Chennai, India

PROFESSIONAL SUMMARY

Mainframe Developer with 3+ years of proven experience in software development, maintenance and support within the insurance and banking services domain. Expertise in COBOL, JCL, CICS, Assembler and VSAM with a strong grasp of both legacy modernization and agile development environments. Adept at analyzing complex systems, implementing enhancements, resolving critical production issues and collaborating with cross-functional teams to deliver high quality solutions on time. CORE SKILLS

• Programming Languages: COBOL, JCL, CICS, Assembler

• Databases: DB2, VSAM

• Tools & Platforms: ISPF

• Operating Systems: IBM Mainframe (z/OS)

• Methodologies: Agile, SDLC

• Other Skills: Dump Analysis, Module Debugging, FTP/TMP Commands, Impact Analysis, QA & Testing PROFESSIONAL EXPERIENCE

Programmer Analyst – Mainframe Developer

Cognizant Technology Solutions, Chennai

June 2022 – Present

Client: Chubb (US Insurance Service)

Key Responsibilities:

• Translated business requirements into functional COBOL programs and executed unit testing.

• Designed and maintained COBOL, JCL, VSAM, and CICS components to support insurance processing systems.

• Prepared and reviewed technical design documents.

• Implemented permanent solutions for recurring abends and ensured systems were stable during daily/monthly cycles.

• Scheduled and maintained Zeke jobs as part of downstream processing systems.

• Conducted peer code reviews to ensure code quality and standards.

• Managed JIRA stories, defects, and tracked issues to closure.

• Developed detailed test case documentation and collaborated with QA and business teams for approvals.

• Conducted in-depth cause and impact analysis of bugs and enhancements.

• Presented root cause analysis and technical solutions directly to clients during delivery calls. KEY PROJECT ACHIEVEMENTS

• Reduced daily abend incidents by 30% by implementing a root-cause tracking mechanism.

• Played a key role in transitioning over 50 legacy jobs to automated batch runs with Zeke scheduling. EDUCATION

Bachelor of Computer Application (BCA) in Computer Science Syed Ammal Arts and Science College, Ramnad

2018 – 2021 CGPA: 8.7 / 10

Higher Secondary Certificate (HSC)

Sri Pariyur Amman Hr. Sec. School, Erode

2018 Percentage: 91%

SSLC (10th Standard)

Raja Matric Hr. Sec. School, Ramnad

2016 Percentage: 94%

PERSONAL ATTRIBUTES

• Strong analytical and problem-solving skills

• Excellent communication and client-facing ability

• Reliable team player with leadership potential

• Highly adaptable to new tools, domains, and challenges LANGUAGES

• English – Fluent

• Tamil – Native

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