React Native Engineer

Selby Jennings; Amsterdam; On-site; EUR 70,000 - 110,000; Full time

Job summary

Selby Jennings is seeking a Senior React Native Engineer to scale a mobile collaboration platform for teams. You will deliver high-quality React Native apps for iOS and Android, optimize performance, and contribute to architecture.

The role involves real-time features, native integrations, end-to-end security, and close collaboration with product, design, and backend teams to push the mobile platform forward.

Qualifications

• Strong commercial React Native experience.
• Hands-on experience with Expo.
• Advanced TypeScript development skills.
• Experience delivering production mobile applications.
• Strong understanding of mobile application architecture.
• Performance optimisation experience.
• Experience working with complex front-end systems.

Responsibilities

• Develop and maintain React Native applications for iOS and Android.
• Deliver high-quality user experiences across mobile devices.
• Contribute to technical architecture and engineering best practices.
• Collaborate with product, design, and engineering teams to deliver new features.
• Optimise application performance and responsiveness.
• Build smooth, highly interactive user experiences.
• Diagnose and resolve performance bottlenecks.
• Improve application stability and reliability.
• Develop features supporting real-time user interactions.
• Contribute to collaboration and communication functionality.
• Help build scalable mobile experiences for growing user bases.
• Work closely with iOS and Android platform capabilities.
• Implement and maintain native integrations where required.
• Understand how React Native interacts with native mobile layers.
• Collaborate on architecture decisions affecting platform performance and scalability.
• Support the development of secure communication features.
• Work with systems that utilize end-to-end encryption.
• Contribute to reliability, scalability, and platform resilience initiatives.

Skills

React Native

Expo

TypeScript

Production apps

Mobile architecture

Performance optimization

Real-time collaboration

Tools

Expo

Job description

Our client is building an AI-powered workspace platform that brings together chat, tasks, documentation, goals, and collaboration into a single product. The platform places a strong emphasis on mobile usability, security, and productivity, including end-to-end encrypted communications and a feature-rich mobile experience across iOS and Android.

The Opportunity

We're looking for a Senior React Native Engineer to help scale and evolve a highly interactive mobile application used for team collaboration and communication. This role goes beyond traditional mobile development. You'll work on performance-critical features, real-time collaboration experiences, secure communications, and native mobile integrations while helping shape the future of the company's mobile platform.

Responsibilities

Mobile Development

• Develop and maintain React Native applications for iOS and Android
• Deliver high-quality user experiences across mobile devices
• Contribute to technical architecture and engineering best practices
• Collaborate with product, design, and engineering teams to deliver new features

Mobile Performance

• Optimise application performance and responsiveness
• Build smooth, highly interactive user experiences
• Diagnose and resolve performance bottlenecks
• Improve application stability and reliability

Real-Time Collaboration Features

• Develop features supporting real-time user interactions
• Contribute to collaboration and communication functionality
• Help build scalable mobile experiences for growing user bases

Native Mobile Integration

• Work closely with iOS and Android platform capabilities
• Implement and maintain native integrations where required
• Understand how React Native interacts with native mobile layers
• Collaborate on architecture decisions affecting platform performance and scalability

Security & Reliability

• Support the development of secure communication features
• Work with systems that utilize end-to-end encryption
• Contribute to reliability, scalability, and platform resilience initiatives

Required Skills

Essential

• Strong commercial React Native experience
• Hands-on experience with Expo
• Advanced TypeScript development skills
• Experience delivering production mobile applications
• Strong understanding of mobile application architecture
• Performance optimisation experience
• Experience working with complex front-end systems

Preferred

• Experience with real-time messaging or collaboration products
• Understanding of native iOS and Android platforms
• Knowledge of threading, native modules, or mobile performance profiling
• Experience working on security-conscious products
• Background in productivity, communication, SaaS, or collaboration platforms

Ideal Candidate

You are a senior mobile engineer who enjoys solving complex technical challenges and understands how to build performant mobile applications at scale.

You'll likely have experience working on:

• Collaboration platforms
• Productivity tools
• Messaging applications
• SaaS products
• Mobile-first technology platforms

You'll be comfortable operating beyond the UI layer, understanding how mobile systems work under the hood, and contributing to both architecture and implementation decisions.