Lead Mobile Engineer - React Native à La Défense, France

Ready to be part of the Legal Tech revolution?

As the leading SaaS publisher in Europe, DiliTrust is transforming legal departments worldwide with cutting-edge technology

Our 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 success

We proudly support 2,300 customers in 50 countries, with 80% of them being CAC 40 companies

Our Ambition: To become the first French legal tech Unicorn, reaching a valuation of over €1 billion

Our Recognition:  DiliTrust 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 2019 

As 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 DiliTrust 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