---
title: "Nilanjan Chakraborty - Principal Engineer in Bengaluru | Tal"
description: "Meet Nilanjan Chakraborty, Principal Engineer | Platform Engineering & Distributed Systems | Cloud-Native & Multi-Tenant Platforms | GenAI & Agentic AI based in Bengaluru. AI stack includes claude code, claude, and deepseek."
image: "https://tal.club/meet/nilanjan-chakraborty/share-image"
---

# Nilanjan Chakraborty on Tal

## Headline

Principal Engineer \| Platform Engineering & Distributed Systems \| Cloud\-Native & Multi\-Tenant Platforms \| GenAI & Agentic AI

## About

Principal Engineer and software architect with 18\+ years of experience designing, building, and scaling distributed systems, cloud\-native platforms, and data\-intensive applications\. At Walmart Global Tech, I provide architecture direction across a large enterprise merchandising platform spanning backend services, data\-processing pipelines, micro\-frontends, workflow, authentication and authorization, notifications, real\-time systems, and shared platform capabilities\. My focus is on creating reusable foundations that enable multiple product teams to move faster without repeatedly solving the same platform problems\. My technical depth spans Java/Spring Boot, distributed systems, microservices, event\-driven architecture, Kafka, gRPC, API and gateway architecture, multi\-tenancy, Kubernetes/GCP, security, workflow orchestration, real\-time/WebSocket systems, resiliency, and observability\. I have also architected and led data\-processing workloads using Airflow, Python/Pandas, Spark/Dataproc, Kafka, and BigQuery as part of broader platform solutions\. My platform work has delivered measurable outcomes including up to 85% reduction in API latency, \~30% lower cloud cost, up to 80% faster service onboarding, and \~60% lower MTTR\. I am currently driving architecture for the MerchOS platform unification, bringing proven Fusion capabilities into a common multi\-tenant architecture designed to support 13K\+ users across \~10 tenants/markets and 50\+ merchandising applications, with a target of sub\-500 ms API latency\. I combine architecture leadership with hands\-on engineering—authoring ADRs, influencing architecture review decisions, designing reference architectures, building shared platform foundations and SDKs, reviewing critical implementations, mentoring senior engineers, and working across organizational boundaries to shape long\-term technical strategy\. I also apply GenAI and Agentic AI to software engineering and SRE workflows, including architecture and design, development, testing, code review, quality and security remediation, and operational automation\.

## Location

Bengaluru

## AI stack

claude code

claude

deepseek

github copilot

langchain

langgraph

## Work experience

Principal Engineer at Walmart Global Tech India, Oct 2025 \- Present · 1 yr, Hybrid, 1\. Provide end\-to\-end technical architecture direction across a large enterprise merchandising platform spanning multiple engineering teams, backend services, data pipelines, micro\-frontends and shared platform capabilities 2\. Shape enterprise platform strategy and drive adoption of reusable capabilities across organizational boundaries, influencing architecture, platform standards, integration patterns and long\-term technology direction 3\. Author Architectural Decision Records \(ADRs\) and influence Architecture Review Board discussions, evaluating trade\-offs across scalability, resiliency, security, operability, developer experience and cost 4\. Lead cross\-cutting platform modernization across multi\-tenancy, authentication/authorization, event\-driven architecture, workflow orchestration, micro\-frontends, Java/Spring modernization and cloud\-native infrastructure 5\. Establish engineering\-excellence and production\-readiness practices around automated testing, quality/security gates, distributed tracing, observability, resiliency, performance engineering, RCA and release validation 6\. Drive GenAI and Agentic AI adoption across architecture, development, code review, testing and engineering operations, contributing to 30%\+ improvement in developer velocity

Staff Software Engineer at Walmart Global Tech India, May 2022 \- Oct 2025 · 3 yrs 6 mos, Hybrid, 1\. Led architecture and technical execution across multiple enterprise merchandising capabilities, helping scale the platform across numerous products and engineering teams 2\. Architected and evolved a centralized API/Gateway platform for routing, authentication, authorization and shared security patterns, reducing latency on critical APIs by up to 85% 3\. Designed reusable multi\-tenant platform foundations covering application bootstrapping, tenant\-aware data isolation, configuration, caching, database migrations, background jobs, security and runtime patterns 4\. Established reusable event\-driven and real\-time integration patterns using Kafka, Outbox processing, gRPC and WebSocket/Socket\.IO 5\. Architected reusable Task/Workflow, Notification and merchant\-platform capabilities, together with SDKs, security clients, starters and facades, enabling up to 80% faster onboarding/delivery 6\. Led cloud, reliability and observability improvements delivering up\-to \~20% cloud\-cost reduction, $10K\+ savings and 60% reduction in MTTR 7\. Drove architecture reviews, reusable engineering standards and mentoring across teams\. Completed 1k\+ PR reviews and coached engineers and senior engineers

Senior Software Engineer at Walmart Global Tech India, Dec 2020 \- Apr 2022 · 1 yr 5 mos, Bengaluru, 1\. Helped establish the backend and platform architecture for Sams merchandising ecosystem \- Fusion, designing & developing foundational microservices, APIs, gateways and reusable Java libraries 2\. Built core authentication/authorization, real\-time messaging, service integration and event\-driven capabilities using Java/Spring Boot, Spring Cloud Gateway, Redis and messaging technologies 3\. Established GCP data\-processing foundations using Dataproc, BigQuery and Cloud Composer and designed merchant planning/forecasting capabilities 4\. Created engineering foundations that subsequently evolved into shared platform capabilities used by multiple teams

Manager \- Projects at Cognizant, Oct 2018 \- Nov 2020 · 2 yrs 2 mos, Kolkata, West Bengal, India

Manager \- Technology Consulting at NRI \(Nomura Research Institute\), Mar 2016 \- Sep 2018 · 2 yrs 7 mos, Kolkata, West Bengal, India

Senior Associate platform Level 2 at Publicis Sapient, Sep 2015 \- Feb 2016 · 6 mos, Bengaluru, Karnataka, India

Assistant Vice President at Citi, Jun 2015 \- Sep 2015 · 4 mos, Chennai, Tamil Nadu, India

## Education

Bachelor of Technology \- BTech, Computer Science, Maulana Abul Kalam Azad University of Technology, West Bengal formerly WBUT

Bachelor's Degree, Computer Science, Sikkim Manipal University \- Distance Education

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

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