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Open to a few part-time engagements

Vishnu Vijayakumar

Technical Lead at Myntra · React, Next.js & React Native

I build high-scale web & mobile products as a Technical Lead at Myntra. Alongside that, I help startups ship production-ready products and features on a part-time basis.

Need senior engineering capacity without hiring another full-time engineer? I take on React / Next.js and React Native builds, SaaS and AI-powered product features, Next.js migrations, performance work and frontend architecture.

Remote, worldwide · How part-time engagements work

About Me

Technical Lead by day, product builder by night.

My Story

I'm a Technical Lead at Myntra with 6+ years of experience building web and mobile products at scale. I own the full frontend of home, SIS, PLP, and PDP pages used by millions of shoppers across India.

Before Myntra, I spent nearly four years at Codingmart Technologies as a Product Engineer — architecting backends, setting up CI/CD, and shipping full products for early-stage startups.

Outside work, I run side projects under Deviza Labs — an AI-powered visa planner and an LLM-based expense tracker. I also take on a small number of part-time freelance and contract projects alongside my role, for teams who need senior engineering capacity for fast, high-performance web & mobile apps. How that works.

React · React Native · Next.js · Node.js · GoLang · MongoDB · SQL

Performance First

FCP/LCP optimisation, lazy loading, Core Web Vitals — measurable wins at Myntra scale.

Cross-Platform

React Native apps shipped to millions; web + mobile parity is a given, not a goal.

Scalable Systems

Real-time content config across Myntra's entire consumer surface — home, SIS, PLP, PDP.

Work Experience

6+ years of impact across product, scale, and performance.

  1. Technical Lead in the Merchandising team — owning the full frontend of home, SIS, PLP, and PDP pages across Myntra app, mobile web, and internal tooling.

    Key Achievements

    • Built Algorithmic Store — reduced page deployment cycle from 1 month to 2 days, driving measurable CTR lift.
    • Shipped Mnow (hyperlocal 2-hour delivery) — led React Native + web frontend, implemented lazy loading on product racks, resolving SLA discrepancies and improving FCP/LCP.
    • Built Federator UI — real-time content configuration system with audience targeting across home, SIS, PLP, PDP.
    • Drove measurable FCP, LCP, and Core Web Vitals improvements across Myntra's consumer surfaces.

    Stack

    • React
    • React Native
    • Node.js
    • MongoDB
    • GoLang

Featured Projects

I don't just code tickets. I can take a product from idea to production. These three I built and shipped myself, under Deviza Labs.

Own Product

TravelVisaStack

AI travel platform

What it does

A visa-requirements checker with AI-generated visa guides and paid, AI-assisted trip itineraries, built under Deviza Labs.

What I built

The whole product: UI, API routes, database, AI content pipeline, payments and deployment.

Key decision

Pre-generates visa guides in scheduled AI batches instead of scraping government sites.

  • Next.js
  • TypeScript
  • Supabase
  • Gemini API
  • Razorpay
  • Resend
  • PostHog
  • Vercel
WIPOwn Product

Deviza Expense Tracker

AI-powered SaaS (web + mobile)

What it does

An expense tracker where you log spending in plain language, in the web app or on Telegram or WhatsApp, with a native mobile app in development. AI turns each message into categorised transactions.

What I built

A pnpm monorepo: Next.js web app, Expo mobile app, shared business logic, AI parsing, chat bots and billing.

Key decision

One shared AI-parsing package, so web, Telegram and mobile cannot drift apart.

  • Next.js
  • React Native (Expo)
  • TypeScript
  • Supabase
  • Gemini API
  • Telegram & WhatsApp APIs
  • Razorpay · Lemon Squeezy · RevenueCat
  • Sentry
  • pnpm monorepo
Own Product

Compete

Data aggregation platform

What it does

A race-discovery platform for India: runners and endurance athletes browse upcoming running, cycling, triathlon, Ironman and Hyrox events in one place, with a curator dashboard behind it.

What I built

Public race site, curator dashboard, Postgres schema and the API that an AI discovery pipeline posts to.

Key decision

AI proposes, a human approves: nothing goes public until reviewed.

  • Next.js
  • TypeScript
  • Drizzle ORM
  • Postgres (Supabase)
  • Auth.js
  • Zod
  • Resend
  • Tailwind + shadcn/ui
  • Framer Motion
  • Vercel

Client work

Problem, what I did, technology, outcome.

Technomanagers.in

Problem
A site built with Lovable needed a proper Next.js foundation and technical SEO.
What I did
Migrated it to Next.js and ran an SEO overhaul: structured data, sitemap, robots, og:image and Core Web Vitals work.
Technology
Next.js · TypeScript · Tailwind CSS · SEO
Outcome
Live on Next.js with structured data, sitemap, robots and OG images in place.

House of 30ML

Problem
A founder needed the web and mobile frontends for a bar-hopping platform in Pune.
What I did
Architected the entire frontend (React Native and React web) and worked directly with the founder.
Technology
React Native · React · Node.js
Outcome
Live in Pune.

Fanspace

What I did
Built the Display page for Esports Collective's Indian e-sports fan engagement platform (news, stats, tournaments) and bridged website modules into the app with a webview.
Technology
React Native · MobX
Outcome
Production app.

How I can help

All of it can be delivered as a part-time engagement, alongside my role as Technical Lead at Myntra.

Product Development

Build production-ready web products, SaaS applications and MVPs.

  • MVPs
  • SaaS
  • End to end
Learn more

React / Next.js Engineering

Build new features, applications, migrations and frontend architecture. Next.js migrations include the SEO groundwork: structured data, sitemaps, OG tags.

  • Features
  • Migrations
  • Architecture
Learn more

React Native

Build or extend cross-platform mobile applications, from greenfield apps to new screens in an existing codebase.

  • iOS & Android
  • Greenfield & brownfield
Learn more

AI-Powered Products

Integrate AI workflows, APIs and AI-driven product experiences, shipped as real products rather than demos.

  • LLM integrations
  • AI workflows
Learn more

Performance Engineering

Improve Core Web Vitals, rendering performance, bundle size and frontend architecture. Backed by real Myntra-scale experience improving FCP and LCP.

  • Core Web Vitals
  • Bundle size
  • Rendering
Learn more

Technical Consulting

Architecture reviews, frontend modernisation and technical direction.

  • Architecture reviews
  • Modernisation
Discuss it

Need senior engineering capacity without another full-time hire?

I take on a small number of part-time freelance and contract projects. Tell me what you're building.

Skills & Expertise

Technologies and tools I reach for on every project.

Frontend

  • React95%
  • React Native90%
  • Next.js92%
  • TypeScript88%
  • Tailwind CSS85%
  • Framer Motion80%

Backend

  • Node.js85%
  • GoLang65%
  • PostgreSQL78%
  • MongoDB80%
  • Prisma75%

SEO & Performance

  • Core Web Vitals92%
  • FCP / LCP Tuning90%
  • Next.js SEO88%
  • Lighthouse85%

Tools & Infra

  • Git / GitHub92%
  • GitLab CI/CD78%
  • NGINX72%
  • PM270%
  • AWS70%

Tell me about your project

Need senior engineering capacity without hiring another full-time engineer? Tell me what you're building.

I take on a small number of part-time freelance and contract projects alongside my role as Technical Lead at Myntra. Available for remote part-time engagements worldwide. Fill in the form and I'll respond within 24 hours.

Based in

Bengaluru, India · working remotely

Open to a few part-time engagements. Not available for full-time roles.

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