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I'm Nicolas Raillot, a mobile engineer specializing in React Native (Expo & Bare) with a strong focus on delivering production-ready apps used by thousands of users. I design scalable architectures, integrate enterprise SDKs, and bridge native iOS/Android code when needed. I build robust CI/CD pipelines and manage OTA releases, ensuring smooth delivery from first build to long-term maintenance. Based in Rouen, France, I collaborate closely with backend and product teams to ship high-quality code with strict TypeScript typing, while mentoring peers on best practices and maintainability.…I'm Nicolas Raillot, a mobile engineer specializing in React Native (Expo & Bare) with a strong focus on delivering production-ready apps used by thousands of users. I design scalable architectures, integrate enterprise SDKs, and bridge native iOS/Android code when needed. I build robust CI/CD pipelines and manage OTA releases, ensuring smooth delivery from first build to long-term maintenance. Based in Rouen, France, I collaborate closely with backend and product teams to ship high-quality code with strict TypeScript typing, while mentoring peers on best practices and maintainability.

Nicolas Raillot

Web Developer, Front-End Developer, Full Stack Developer, +4

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I'm Nicolas Raillot, a mobile engineer specializing in React Native (Expo & Bare) with a strong focus on delivering production-ready apps used by thousands of users. I design scalable architectures, integrate enterprise SDKs, and bridge native iOS/Android code when needed. I build robust CI/CD pipelines and manage OTA releases, ensuring smooth delivery from first build to long-term maintenance. Based in Rouen, France, I collaborate closely with backend and product teams to ship high-quality code with strict TypeScript typing, while mentoring peers on best practices and maintainability.…I'm Nicolas Raillot, a mobile engineer specializing in React Native (Expo & Bare) with a strong focus on delivering production-ready apps used by thousands of users. I design scalable architectures, integrate enterprise SDKs, and bridge native iOS/Android code when needed. I build robust CI/CD pipelines and manage OTA releases, ensuring smooth delivery from first build to long-term maintenance. Based in Rouen, France, I collaborate closely with backend and product teams to ship high-quality code with strict TypeScript typing, while mentoring peers on best practices and maintainability.

Available to hire

I’m Nicolas Raillot, a mobile engineer specializing in React Native (Expo & Bare) with a strong focus on delivering production-ready apps used by thousands of users. I design scalable architectures, integrate enterprise SDKs, and bridge native iOS/Android code when needed. I build robust CI/CD pipelines and manage OTA releases, ensuring smooth delivery from first build to long-term maintenance.

Based in Rouen, France, I collaborate closely with backend and product teams to ship high-quality code with strict TypeScript typing, while mentoring peers on best practices and maintainability.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

French

Fluent

Work Experience

Freelance React Native Mobile Lead Developer at Freelance

January 1, 2022 - Present

Designed and delivered production React Native apps for 50k+ users on iOS & Android. Built and automated CI/CD pipelines with EAS, Fastlane and GitHub Actions, enabling OTA updates and streamlined app store releases. Migrated Bare React Native apps to Expo managed workflow, simplifying maintenance and accelerating delivery. Integrated Salesforce Marketing Cloud and Piano Analytics; implemented CarPlay, Android Auto, and background audio. Collaborated with backend and product teams to ensure scalable architecture and reliable deployments.

React Native/React/Angular Developer at Glady

January 1, 2022 - September 21, 2025

Scaled React Native apps to 150k+ active users; implemented Apollo GraphQL integration; developed custom RN modules/packages. Built a Node.js push notifications microservice with Firebase Admin SDK. Co-created a shared Design System in Angular and strengthened reliability through unit testing (Jest).

React/React Native Developer at Proxiad Axe Seine

January 1, 2019 - September 21, 2025

Delivered React web apps and RN mobile apps from scratch for client projects. Managed state with Redux & Immutable.js and handled ongoing maintenance (TMA).

iOS/Swift Developer at DTT Multimedia

January 1, 2018 - September 21, 2025

Developed native iOS apps (Swift) across multiple projects in an Agile environment. Set up CI pipelines, contributed to UI/UX improvements, and collaborated within an international, English-speaking team.

Freelance React Native Mobile Lead Developer at Self-employed / Freelance

January 1, 2022 - Present

Designed and delivered React Native apps in production, supporting 50k+ users on iOS & Android. Built and automated CI/CD pipelines with EAS, Fastlane & GitHub Actions, enabling over-the-air updates and streamlined app store releases. Migrated Bare React Native apps to Expo managed workflow, simplifying maintenance and accelerating delivery cycles. Integrated enterprise SDKs such as Salesforce Marketing Cloud and Piano Analytics, and implemented advanced native features including CarPlay, Android CarPlay, Android Auto, and background audio. Collaborated closely with backend and product teams to ensure scalable app architecture and reliable deployment processes.

React Native/React/Angular Developer at Glady

January 1, 2022 - September 21, 2025

Scaled React Native apps to 150k+ active users, maintaining stability across iOS & Android. Implemented Apollo GraphQL integration and developed custom RN modules/packages. Built a Node.js push notifications microservice with Firebase Admin SDK (FCM). Co-created a shared Design System in Angular and strengthened reliability through unit testing (Jest).

React/React Native Developer at Proxiad Axe Seine

January 1, 2019 - September 21, 2025

Delivered React web apps and RN mobile apps from scratch for client projects. Managed state using Redux & Immutable.js and handled ongoing maintenance (TMA).

iOS/Swift Developer at DTT Multimedia

January 1, 2018 - September 21, 2025

Freelance React Native Mobile Lead Developer at Self-employed

January 1, 2022 - Present

Designed and delivered React Native apps in production for 50k+ users on iOS & Android. Built and automated CI/CD pipelines with EAS, Fastlane & GitHub Actions, enabling over-the-air updates and streamlined app store releases. Migrated Bare React Native apps to Expo managed workflow, simplifying maintenance and accelerating delivery cycles. Integrated enterprise SDKs such as Salesforce Marketing Cloud and Piano Analytics, and implemented advanced native features including CarPlay, Android Auto, and background audio. Collaborated closely with backend and product teams to ensure scalable app architecture and reliable deployment processes.

React Native/React/Angular Developer at Glady

January 1, 2022 - September 23, 2025

React/React Native Developer at Proxiad Axe Seine

December 31, 2019 - September 23, 2025

Delivered React web apps and RN mobile apps from scratch for client projects. Managed state using Redux & Immutable.js and handled ongoing maintenance (TMA).

iOS/Swift Developer at DTT Multimedia

December 31, 2018 - September 23, 2025