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Mahesh S

GET @ HCLTech | Backend-Focused Full Stack (MERN) | Building Scalable APIs & Real-Time Systems | Node.js, MongoDB, DB2 | Production-Grade Problem Solver

Chennai

1+ year of work experience

HCLTech
Aug 202511 mosPresent

Chennai

Resolved critical production failures end-to-end (log analysis → root cause → fix), reducing downtime and ensuring uninterrupted delivery. Automated batch workflows using JCL & Control-M, improving system reliability and execution consistency. Managed large-scale data operations in DB2 & IMS (millions of records) with zero data integrity issues. Collaborated across dev, QA, and infra teams to provision environments faster and meet delivery timelines.
ADP India
Jan 20256 mosJun 2025

Chennai

Diagnosed and fixed payroll calculation issues by analyzing application logic and SQL data flows. Performed deep SQL investigations to identify and resolve data inconsistencies across modules. Contributed to production stability by supporting live payroll systems with zero disruption. Documented recurring issues to reduce resolution time and improve team efficiency.

Education

Saveetha Engineering College

Bachelor of Engineering - BE, Computer Science and Engineering

Saveetha Engineering College

20214 yrs2025

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Headline

GET @ HCLTech | Backend-Focused Full Stack (MERN) | Building Scalable APIs & Real-Time Systems | Node.js, MongoDB, DB2 | Production-Grade Problem Solver

About

I specialize in fixing what breaks in production and building systems that don’t. Software Engineer with experience in enterprise production systems and backend development. At HCLTech, I handle critical system operations, resolving failures end-to-end, automating workflows (JCL, Control-M), and managing large-scale data in DB2 & IMS — ensuring zero downtime in high-stakes environments. Previously at ADP, I supported global payroll systems, resolving calculation issues, performing deep SQL investigations, and ensuring accurate, disruption-free processing across regions. Strengths: Backend development, system reliability, problem-solving, scalable design

Location

Chennai

Work experience

Graduate Engineer Trainee at HCLTech, Aug 2025 - Present · 11 mos, Chennai, Resolved critical production failures end-to-end (log analysis → root cause → fix), reducing downtime and ensuring uninterrupted delivery. Automated batch workflows using JCL & Control-M, improving system reliability and execution consistency. Managed large-scale data operations in DB2 & IMS (millions of records) with zero data integrity issues. Collaborated across dev, QA, and infra teams to provision environments faster and meet delivery timelines.

Software Engineer at ADP India, Jan 2025 - Jun 2025 · 6 mos, Chennai, Diagnosed and fixed payroll calculation issues by analyzing application logic and SQL data flows. Performed deep SQL investigations to identify and resolve data inconsistencies across modules. Contributed to production stability by supporting live payroll systems with zero disruption. Documented recurring issues to reduce resolution time and improve team efficiency.

Education

Bachelor of Engineering - BE, Computer Science and Engineering, Saveetha Engineering College

Mahesh S - Graduate Engineer Trainee in Chennai | Tal