Senior React and React Native Developer

Sandesh Vakale

Senior React Native Developer specializing in mobile performance, GraphQL data layers, TypeScript architecture, and product-focused delivery.

Key Achievements

Increased user retention by 20% through React Native performance work and new front-end features.

Delivered React Native features benefiting 500,000+ users across product, design and backend teams.

Led front-end work delivering 30% performance improvement post-launch.

Automated front-end testing across 100+ systems with 2,000 users for higher reliability.

Jan 2023 - Apr 2026

Witco / Paris, France

Built performant React Native (iOS & Android) apps in TypeScript for workplace productivity, integrated with GraphQL APIs via Apollo Client.
Developed the companion React (web) admin and tenant portals in TypeScript, sharing design tokens and business logic with the mobile app.
Implemented advanced Apollo caching (normalized cache, pagination, cache-first) to cut network calls and improve UI responsiveness.
Optimised GraphQL queries and fragments to minimise payload and enable seamless offline access through persistent Apollo cache.
Built reusable React hooks and context layers for type-safe GraphQL mutations, subscriptions and cache updates.
Partnered with backend on GraphQL schema design for smooth client-server integration.
Optimised app performance (startup time, list virtualization, re-render reduction) and shipped new front-end modules driving user engagement.

Jul 2022 - Jan 2023

Meetic / Paris, France

Developed React Native in-app purchase flows (Boost your profile, premium upgrades) with RevenueCat and native billing bridges.
Boosted revenue by shipping profile-visibility boosts, raising match rates and engagement among paying users.
Integrated dynamic React Native paywalls and pricing tiers with real-time A/B testing to optimise conversion funnels.
Correlated Sentry error logs with Amplitude analytics to identify user-impacting issues faster and reduce churn.
Partnered with product and growth on personalised offers and limited-time boosts, lifting conversion and ARPU.
Delivered React Native features used by 500,000+ users across cross-functional teams.

Dec 2021 - May 2022

Trace One / Paris, France

Migrated large-scale legacy web interfaces from HTML/CSS/JS to a modern React + TypeScript + Ant Design architecture.
Refactored reusable React UI components on Ant Design's system for consistent styling, accessibility and responsiveness.
Modularised legacy scripts into functional React components with hooks and TypeScript for maintainability.
Aligned new React features with existing REST APIs while preserving backward compatibility.
Improved front-end performance and build times via Webpack tuning, code-splitting, lazy loading and efficient state management.

Oct 2017 - Nov 2021

Netdevices SAS / Paris, France

Led front-end development of multiple React web and React Native mobile apps including CCE-Air-France, Basic-Fit and Fleetizen.
Owned component architecture, state management (Redux/MobX), performance optimisation and team mentoring across projects.
Built shared design-system components and React hooks reused across products to accelerate delivery.
Integrated REST and GraphQL APIs, push notifications, deep linking, analytics and crash reporting.

Aug 2014 - Sep 2016

Dassault Systèmes / Pune, India

Web automation across 100+ systems with 2,000 test users.
Worked on 3D modeling and design workflows.
Built automation tooling for deprecated API discovery and authored batch scripts for use-case automation.

ReactReact NativeTypeScriptJavaScriptGraphQLApollo ClientReduxMobXJestHTMLCSSGitHubJIRAiOS3D ModelingAutomation

2016 - 2018

EPITA International / Paris

2009 - 2013

University of Mumbai / Mumbai

Preview the attached resume directly on the page, or open the PDF in a new tab.