Hi, I'm Debraj Dhar

Full Stack Engineer @ Nike

I architect and build scalable, high-performance web applications end-to-end. With 5+ years of experience at companies including Nike, Wakefit, and TCS, I specialize in React, Next.js, FastAPI, and cloud architecture. Passionate about optimizing critical systems and delivering exceptional user experiences.

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Debraj Dhar - Full Stack Engineer

About Me

I'm a full stack engineer passionate about building beautiful, performant, and accessible web applications. I have worked at leading companies like Nike, Wakefit, and TCS, where I spearheaded end-to-end architecture, led migrations, and optimized critical systems. I specialize in React, Next.js, FastAPI, and cloud architecture, with expertise in web performance, microservices, and modern development practices.

I thrive on solving complex problems across the full stack. From architecting scalable microservices and optimizing data pipelines to building responsive frontends and designing cloud infrastructure. Currently at Nike, previously at Wakefit and TCS, working on high-impact projects that serve millions of users.

Frontend

React.jsNext.jsReduxReact QueryJotaitRPCTailwind CSSShadCNMaterial UIBootstrapPostCSS

Backend & Tools

FastAPIExpress.jsNode.jsGraphQLREST APIsWeb Security (CORS)

Specializations

  • Microservices
  • Cloud Architecture
  • Monorepo (Nx, Turborepo)

Experience

Software Engineer

July 2025 – Present

Nike

Spearheading end-to-end architecture and infrastructure optimization at Nike, focusing on orchestration pipelines and internal business platforms.

  • Architected single-point orchestration pipeline enabling 7+ internal teams to manage large-scale data backfills
  • Built PSA Airtalk - internal business chat query platform with React.js and FastAPI
  • Accelerated data processing by 67% for 49M+ records via Jenkins CI/CD pipeline with parallelization
  • Instituted reconciliation API ensuring 100% data completeness with eventual consistency
  • Engineered AI testing workflow using Claude Opus, achieving 84% test coverage with automated pytest generation

Software Engineer

July 2024 – July 2025

Wakefit

Led migration to modern stack and delivered core commerce features, significantly improving performance and user engagement.

  • Directed Next.js migration (T3 stack: TypeScript, tRPC, NextAuth, Tailwind) delivering 10+ commerce capabilities
  • Boosted engagement by 25% and retention by 15% through feature delivery (Wallet, Variant Edit, Infinite Scroll)
  • Accelerated frontend performance by 45% - reduced TBT from 12s to 3s, achieved CLS under 1s via SSR, Redis caching, CDN optimization
  • Revamped analytics infrastructure: integrated Strapi CMS, GraphQL across 60+ hierarchies, MoEngage & FB Conversion APIs for 50+ events
  • Instituted Playwright-based TDD achieving 70% test coverage

System Engineer

May 2019 – Sep 2022

Tata Consultancy Services

Developed full-stack solutions for enterprise clients with focus on monitoring systems and infrastructure management.

  • Developed React JS monitoring dashboard for 100+ Azure SQL servers improving incident detection by 40%
  • Administered 100+ SQL Server production/staging environments with clustering, failover, and backup strategies
  • Maintained 99.9% uptime SLA for P1 incidents via automated health checks and failover protocols

Education

Master of Engineering (M.E.) in Software Systems

BITS Pilani

2022 – 2024

Bachelor of Technology (B.Tech) in Computer Science and Engineering

University of Engineering & Management (UEM), Kolkata

2015 – 2019

Featured Projects

Nike Data Orchestration Pipeline

Single-point orchestration system enabling multiple internal teams to trigger and manage large-scale data backfills.

FastAPIJenkinsPythonGraphQLAWS

Enabled 7+ teams to manage data operations, 100% data completeness guarantee

PSA Airtalk - Internal Chat Platform

Business query chat platform built with modern frontend and robust backend infrastructure.

React.jsFastAPICustom CSSGraphQL

Internal platform serving multiple business teams with real-time query capabilities

Wakefit E-commerce Migration

Complete migration to Next.js T3 stack with 10+ core commerce features and 45% performance improvement.

Next.jsTypeScripttRPCNextAuthTailwind CSSRedis

45% frontend acceleration, 25% engagement boost, 15% retention improvement

Azure SQL Monitoring Dashboard

Real-time monitoring dashboard for 100+ Azure SQL servers with advanced incident detection.

React.jsAzure SQLWebSocketsRecharts

40% incident detection improvement, 60% reduction in manual monitoring effort