Saptarshi Dey

Software Engineer

Bengaluru, Karnataka, India10 yrs 4 mos experience

Most Likely To SwitchAI Enabled

Key Highlights

Expert in architecting scalable GenAI solutions.
Proven track record in improving self-service rates.
Strong leadership in cross-team project management.

Stackforce AI infers this person is a SaaS-focused Staff Software Engineer with expertise in GenAI and scalable web solutions.

Contact

saptarshidey13@gmail.com LinkedIn

Skills

Core Skills

GenaiGraphqlData EngineeringFrontend DevelopmentBackend DevelopmentChatbot DevelopmentSoftware ArchitectureWeb Analytics

Other Skills

AJAXAdobe AnalyticsAlgorithmsAngularJSAzure Cosmos DBAzure Kubernetes Service (AKS)BigQueryBootstrapCI/CDCSS3Data StructuresDebuggingDockerDrag and DropDynamic Loading

About

As a Staff Software Engineer at Walmart, I specialize in architecting and delivering high-impact, scalable solutions within the Customer Experience domain. My current focus is on advancing our GenAI-powered customer care chatbot and related HelpCenter initiatives. I drive the development of robust services designed to enhance self-service rates, improve user conversion, and achieve significant cost savings. Key responsibilities include building sophisticated GenAI services for our chatbot, utilizing devTools like Windsurf for accelerated development, and implementing rigorous evaluation methodologies for Large Language Model (LLM) output to ensure precision and effectiveness. With a keen eye for design, I am committed to developing pixel-perfect user interfaces, coupled with a deep focus on performance optimization, accessibility, and maintaining resilient production applications used by millions of customers. My expertise spans a comprehensive technology stack, including: Frontend: JavaScript, ReactJS, NextJS, Redux, React-query, TypeScript, JEST, HTML, CSS Backend: NodeJS, Python, GraphQL, Kafka, F# Databases: MongoDB, MySQL, Redis, MilvusDB DevOps & Observability: Docker, Kubernetes, Jenkins, Looper, Splunk, Grafana, OpenObserve Drawing from extensive industrial experience across startups and large product-based MNCs, I bring proven leadership in taking projects from ideation through to successful production deployment.

Experience

Walmart global tech india

Staff Software Engineer

Apr 2021 – Present · 4 yrs 11 mos · Bengaluru, Karnataka, India · Hybrid

Design and architected data offload pipeline using kafka and change feed from cosmosDB to BigQuery. This saved ~$60k annually.
Implemented GenAI RAG applications for summarization and in chatbot. ~7.2% improvement in self service rate.
Developed Developer experience tool - GenAI Studio. This helps in managing prompts, experiments, tools. Micro-frontend UI and python Fast api Backend.
Migrated backend for frontend REST to GraphQL. Pod profiling, auto-scaling and performance testing to serve 2000 TPS peak live traffic.
Reduced latency in Redis for GenAI service resulting in saving business cost.
Architected chatbot service to support multi tenant and develop client SDKs.
Improved self service rate of chatbot resulting in ~$300k annual cost reduction.
Improved Core Web Vitals and optimised initial load time of web pages.
CI/CD pipelines setup via docker and k8s (canary deployment).
Lead multiple impactful initiatives. Manages cross team communications, feasibility check for new features and estimation determination.

KafkaGraphQLGenAIDockerKubernetesRedis+2

Eka software solutions

2 roles

Lead Engineer

Promoted

Aug 2020 – Apr 2021 · 8 mos

Developed a Metadata and Workflow driven architecture, where multi tenant
applications can be generated based on generic configurations.
Created Reusable Widgets allowed to plug any component dynamically like
Data-tables, data-views, Complex Charts, Charts, dynamic Templates, Forms.
Developed a templating-engine for dynamic template injection.
Handled a team of 8 people and managed code reviews.

Metadata ArchitectureReusable WidgetsTemplating EngineSoftware Architecture

Senior Software Engineer

Dec 2018 – Aug 2020 · 1 yr 8 mos

Zowork

Software Development Engineer - II

Mar 2018 – Nov 2018 · 8 mos · Bengaluru Area, India

Created an admin dashboard for photographers for creating various portfolios.
Implemented infinite scroll for dynamic loading of photos, folder structure for maintaining photos, drag and drop functionality using React-DnD.
Enterprise application in react-native with dynamic UIs, push notification.

ReactDynamic LoadingDrag and DropFrontend Development