Lead Mobile Engineer - React Native

United States Digital Space LLC; Puteaux; Sur place; EUR 90 000 - 120 000; Plein temps

Résumé du poste

United States Digital Space LLC in Île-de-France seeks a Lead Mobile Engineer to spearhead the rebuild of our native mobile apps using React Native and AI-powered development tools. You will define the architecture, set up CI/CD pipelines, establish tooling and best practices, and scale the mobile scope beyond current capabilities.

This role demands hands-on leadership, deep RN expertise, and close collaboration with product, backend, and design to deliver a world-class mobile experience, while

Qualifications

• 8+ years of professional experience in mobile development.
• Proven React Native expert with deep ecosystem knowledge (navigation, state management, native modules, performance).
• Ability to start a mobile project from scratch: bootstrapping, architecture decisions, CI/CD setup, store deployment.
• Experience building and shipping production mobile apps on iOS and Android.
• Hands-on experience with AI-assisted development tools (Claude Code, Cursor, GitHub Copilot, or similar).

Responsabilités

• Lead the full rebuild of native mobile apps using React Native, from scratch.
• Define and implement scalable mobile architecture.
• Set up the complete CI/CD pipeline for mobile (build, test, distribution, store deployment).
• Leverage AI-powered tools to accelerate development and raise quality standards.
• Establish mobile engineering best practices: code structure, testing strategy, release management, monitoring.
• Collaborate with product managers, designers, backend engineers, and stakeholders to deliver a world-class mobile experience.
• Progressively extend the mobile scope beyond current features and bring more of the platform to mobile users.
• Mentor the mobile team as the project scales.
• Stay updated on React Native ecosystem evolutions and AI tooling advancements.

Connaissances

React Native

TypeScript

Mobile development

CI/CD

AI-assisted dev tools

Leadership

Communication

Outils

Fastlane

Bitrise

GitHub Actions

Claude Code

Copilot

Docker

Description du poste

Ready to be part of the Legal Tech revolution?As the leading SaaS publisher in Europe, the company is transforming legal departments worldwide with cutting-edge technologyOur Impact: From General Meeting reports to AI-assisted contract life management, our teams across France, Spain, Italy, Canada, Mexico, and MEA are the driving force behind our global successWe proudly support 2,300 customers in 50 countries, with 80% of them being CAC 40 companiesOur Ambition: To become the first French legal tech Unicorn, reaching a valuation of over €1 billionOur Recognition:the company is recognized for offering a positive and stimulating work environment We are proud recipients of the “Happy at Work” and “Tech at Work” labels since 2019As our Lead Mobile Engineer,you will spearhead the rebuild of our native mobile application using React Native and AI-powered development tools. This is a key strategic role: you will lay the foundations (architecture, CI/CD pipelines, tooling, and best practices) and then scale the mobile scope well beyond what we deliver today.

Missions:

• Lead the full rebuild of our existing native mobile applications using React Native, from scratch
• Define and implement the mobile architecture, ensuring scalability, performance, and maintainability
• Set up the complete CI/CD pipeline for mobile (build, test, distribution, store deployment)
• Leverage AI-powered tools (code generation, assisted testing, copilot-style workflows) to accelerate development and raise quality standards
• Establish mobile engineering best practices: code structure, testing strategy, release management, and monitoring
• Collaborate closely with product managers, designers, backend engineers, and stakeholders to deliver a world-class mobile experience
• Progressively extend the mobile scope beyond the current feature set, bringing more of the the company platform to mobile users
• Mentor the mobile team as the project scales
• Stay on top of React Native ecosystem evolutions, mobile platform changes, and AI tooling advancements

Your Profile:

• - 8+ years of professional experience in mobile development
• - Proven track record as a React Native expert, with deep knowledge of the ecosystem (navigation, state management, native modules, performance optimization)
• - Demonstrated ability to start a mobile project from scratch: bootstrapping, architecture decisions, CI/CD setup, and store deployment
• - Experience building and shipping production mobile apps on both iOS and Android
• - Hands‑on experience with AI-assisted development tools (Claude Code, Cursor, GitHub Copilot, or similar)

Technical Expertise:

• Expert‑level proficiency in React Native and TypeScript
• Strong understanding of native mobile platforms (iOS/Android) and bridging when needed
• Solid experience setting up and managing CI/CD pipelines for mobile (Fastlane, Bitrise, GitHub Actions, or equivalent)
• Experience with automated testing strategies for mobile (unit, integration, E2E)
• Familiarity with mobile performance profiling, crash reporting, and monitoring tools
• High standards for code quality, testing, and documentation

Leadership & Collaboration

• Ability to take full ownership of a technical domain and drive decisions autonomously
• Strong communication skills, able to articulate technical trade-offs to both engineers and non‑technical stakeholders
• Experience mentoring developers and establishing engineering practices within a team

Tech Stack

React Native, TypeScript, iOS, Android, UWP, PHP/Typescript REST APIs, PostgreSQL/MariaDB, Claude code, Docker, CI/CD, GCP

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