---
title: "Shibaji Chakroborty - Reliability Engineer in Kolkata | Tal"
description: "Meet Shibaji Chakroborty, Reliability Engineer | Design for Reliability(DfR) | Physics of Failure (PoF) | DFMEA | Product Reliability and Quality assurance based in Kolkata. AI stack includes codex, opencode, and Devin."
image: "https://tal.club/meet/shibaji-chakroborty/share-image"
---

# Shibaji Chakroborty on Tal

## Headline

Reliability Engineer \| Design for Reliability\(DfR\) \| Physics of Failure \(PoF\) \| DFMEA \| Product Reliability and Quality assurance

## About

I am a Reliability Engineer with a strong interest in building products that last and perform reliably in the field\. With an M\.Tech in High Voltage Engineering from NIT Calicut and hands\-on experience at Enphase Energy, I work on ensuring product quality and reliability throughout the design and validation cycle\. My focus is on helping teams identify potential failure risks early and design solutions that improve product life and customer experience\. I do this through: Design for Reliability \(DfR\) and DFMEA\-driven planning Developing reliability test plans \(LTR, RDT\) suited to real\-world applications Using Physics of Failure principles, Weibull analysis, and reliability prediction tools Working closely with cross\-functional teams to address issues proactively Some of my recent work includes supporting multiple new product introductions and sustaining projects, reducing test time, improving component selection, and contributing to overall product robustness\. I’ve also had the opportunity to co\-author bankability reports for Li\-ion systems and hold a patent in transformer condition monitoring, which reflects my interest in practical innovation\. I enjoy collaborating with engineers and product teams to make designs more reliable and efficient\. Always open to sharing ideas and learning from others in the field\.

## Location

Kolkata

## AI stack

codex

opencode

Devin

## Work experience

Reliability Engineer at Enphase Energy, Jun 2025 \- Present · 1 yr 3 mos, Bengaluru, Karnataka, India

Associate Engineer at Enphase Energy, Jul 2023 \- Jun 2025 · 2 yrs, Bengaluru, Karnataka, India, Led reliability strategy for 4 New Product Introduction \(NPI\) projects and 5\+ sustaining projects, ensuring robust product performance from concept to launch\. Designed and executed reliability test plans \(LTR, RDT\) using statistical models, cutting test duration by 15–20% and accelerating time\-to\-market\. Performed BOM scrubbing with Relyence tools, reducing component weaknesses by 30% and saving $50 per unit through cost optimization\. Facilitated DFMEA workshops across design, hardware, and quality teams, implementing failure\-oriented validation strategies that decreased potential failure modes by 20%\. Identified and resolved 10\+ critical design issues during LTR/RDT by collaborating with Failure Analysis, Hardware, and Firmware teams, directly improving product stability\. Analyzed field data across 100\+ SKUs using Weibull\+\+, uncovering failure trends that informed warranty planning and design improvements for four quarters\. Authored DNV\-compliant bankability reports for Li\-ion battery systems, validating 15\-year design life for customer confidence and financial assurance\. Orchestrated eMMC failure mode validation, creating strategic test flows that strengthened gateway product robustness\. Improved supplier coordination, reducing design modification response time by 50% \(from two weeks to one\)\. Applied AEC\-Q, JEDEC, Telcordia, and MIL\-HDBK\-217 standards for component qualification and reliability compliance\. Delivered Design for Reliability \(DfR\) training to new leadership, strengthening organizational reliability culture\.

## Education

Master of Technology \- MTech, High Voltage Engineering, National institute of technology Calicut

Bachelor of Technology \- BTech, Electrical and Electronics Engineering, Kalyani Government Engineering college

[View the original profile](https://tal.club/meet/shibaji-chakroborty)

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