Hello, I'm

Pranav K S

Lead Frontend Developer

I build fast, scalable web experiences — from architecture to delivery.
7 years of shipping at scale.

Download Resume ↓

About Me

Pranav K S

I'm a Lead Frontend Developer with 7 years of experience building and scaling high-traffic web products. Most recently I led the frontend web team at SurveySparrow, where I owned everything from architecture and performance engineering to team leadership and hiring.

I've shipped full website migrations, driven Core Web Vitals from poor to 90–100 scores on a 1M+ monthly visitor site, built internal tooling, component libraries, and product websites from the ground up. I care deeply about performance, developer experience, and writing code that scales — both technically and as a team.

I've also conducted 200+ interviews and hired 10+ engineers. I've been writing code since well before the AI era — and now I use it to maximise what I can deliver.

Skills

Languages & Markup

HTML CSS JavaScript TypeScript

Frameworks & Libraries

React Next.js React Native Expo

Styling

Tailwind CSS SCSS Radix UI Bootstrap

State Management

Zustand Redux Toolkit Context API

Data Fetching

TanStack Query SWR

CMS & Backend

Strapi Payload CMS WordPress

Testing

Vitest Jest Playwright

Tooling & Build

Webpack Vite Turbopack ESLint Biome Storybook Lerna (Monorepo) & more

Performance & SEO

Core Web Vitals Lighthouse

AI

Claude Code Cursor MCPs

Work Experience

Jun 2022 – Apr 2026 SurveySparrow

Lead Frontend Developer

  • Led, managed, and mentored a 4-person frontend web team; owned sprint planning, technical architecture, code reviews, and performance reviews.
  • Architected and delivered a full migration of 3,000+ pages of surveysparrow.com from WordPress to React, Next.js, and Strapi CMS - leveraging Server Components, Streaming, and the App Router - including the project foundation.
  • Drove Technical SEO and Core Web Vitals optimisation across all tracked URLs - took every page from poor/needs improvement to good on a 1M+ monthly visitor website, with Lighthouse performance scores rising from 20-30 to 90-100.
  • Developed custom features and admin workflows across CMS dashboards, building complex client-side SPA interfaces with rich interactive UI.
  • Independently shipped 3 new product websites from scratch using React, Next.js, and Payload CMS - sparrowcrm.com, sparrowgenie.com, and peopleinsales.com.
  • Built internal tooling including component libraries, a website starter kit, and 3 Payload CMS plugins used org-wide by content teams.
  • Leveraged AI-assisted development tooling to increase delivery velocity across the team.
  • Implemented Internationalisation (i18n), enabling SurveySparrow's website to serve a global multilingual audience.
  • Owned release management, environment configuration, and CMS content modelling; set up A/B testing architecture and maintained technical documentation for team onboarding and knowledge sharing.
  • Participated in company-wide hiring: conducted 200+ interviews and hired 10+ frontend engineers across multiple teams.
  • Implemented app-level and CDN-level caching with cache revalidation strategies.
  • Handled security, compliance, and observability: implemented cookie consent manager for GDPR, enforced CSP headers, resolved security findings from VAPT audits and integrated SonarQube workflow; set up analytics and monitoring tooling.
  • Established team-wide coding standards, linting rules, style guides, and Git workflows; implemented pipelines for automated linting, testing, and security scans.
  • Built and maintained internal APIs and Server Actions to support website functionality.
  • Collaborated with marketing, design, sales, backend, DevOps, security, and legal teams to deliver high-quality, compliant web experiences.
  • Defined mobile app architecture for SparrowCRM product using React Native and Expo, laying the technical foundation ahead of its launch.
Dec 2021 – Jun 2022 SurveySparrow

Senior Frontend Developer

  • Owned SurveySparrow's marketing website end-to-end, leading delivery and continuous improvement across design, performance, and SEO.
  • Mentored junior frontend developers through regular code reviews and pair programming.
  • Delivered pixel-perfect, performant, and accessible pages including animated and interactive UIs; stack: Vanilla JavaScript, SCSS, and Bootstrap.
  • Built robust UI with proper error handling, loading states, and fallback experiences throughout the website.
  • Integrated third-party tools including chat widgets and marketing platforms.
Aug 2020 – Dec 2021 SurveySparrow

Frontend Developer

  • Built pixel-perfect, performant, responsive, and cross-browser compatible pages and reusable UI components with strong focus on performance and accessibility.
  • Developed HTML email templates with robust email client compatibility, including Outlook support.
Aug 2019 – Aug 2020 Genius Group Global

UI Developer

  • Developed dynamic web interfaces; optimised page load performance.
Early Work 2019 – 2020 · Personal & freelance projects from when it all started

These are projects from the beginning of my career. Building for fun was how I got here.

Video Gallery

Video Gallery

Vanilla JS

View Project
Form Validator

Form Validator

Vanilla JS

View Project
World Book of Records Event Website

World Book of Records Event

HTML · CSS

View Website
Business Website

Business Website

HTML · CSS

View Website
IIT Madras Research Park Event

IIT Madras Research Park Event

HTML · CSS

View Website
Website Template

Website Template

HTML · CSS · Sass · Bootstrap · JS

View Project
Application Form

Application Form

HTML · CSS · Sass · Bootstrap · JS

View Project
Student Portal

Student Portal

HTML · CSS · JS

View Project
Portfolio Website

Portfolio Website

HTML · CSS · Bootstrap

View Project
Blog Template

Blog Template

HTML · CSS · Bootstrap

View Project
Educational Institution Website

Educational Institution Website

HTML · CSS

View Website
Facebook UI Clone

Facebook UI Clone

HTML · CSS

View Project

Let's Work Together

Have a project in mind or want to talk? I'm open to freelance, consulting, or full-time opportunities.