Redpoint

Mattermost is seeking a talented and passionate React Native Engineer to join our mobile engineering team and help deliver world-class mobile experiences for mission-critical industries like defense, intelligence, and critical infrastructure. You'll be responsible for building and maintaining our React Native applications that enable secure, real-time collaboration for organizations where reliability and security are non-negotiable.

As a React Native Engineer at Mattermost, you'll work closely with cross-functional teams to create mobile solutions that solve complex communication challenges in high-stakes environments. Your work will directly impact how critical organizations coordinate, share information, and respond to urgent situations. This role offers the unique opportunity to contribute to our open-source platform while building mobile applications that serve some of the world's most important missions.

Do you have a passion for designing and developing high-impact products? Do you want to work with a well-oiled, collaborative and highly senior team? Do you want to make an impact on open source? Help us build and grow one of the largest React Native and Go open-source projects.

Responsibilities Include:

• Design, develop, and maintain high-performance capabilities for the Mattermost React Native application for iOS and Android platforms
• Architect full-stack A/V systems spanning frontend media handling, backend streaming infrastructure, and network optimization
• Lead the strategic evolution of Mattermost's audio/video capabilities, evaluating and potentially integrating third-party platforms like LiveKit
• Collaborate directly with customer technical teams to understand deployment requirements, troubleshoot complex networking issues, and optimize performance
• Develop robust media streaming backends using Go, including SFU/MCU implementations, media processing pipelines, and real-time data handling
• Build responsive frontend experiences with TypeScript and React for seamless audio/video interactions across web and mobile platforms
• Contribute to open-source media streaming solutions through Mattermost's GitHub platform, advancing the broader developer ecosystem
• Implement comprehensive testing strategies for real-time media systems, including network simulation and performance benchmarking
• Optimize streaming performance across diverse network conditions and security constraints typical in defense and enterprise environments
• Mentor engineering team members on media streaming best practices and emerging A/V technologies
• Work with product managers and designers to translate complex technical capabilities into intuitive user experiences

Requirements:

• BS in Computer Science, Computer Engineering, or related field/experience
• 3+ years of professional experience developing mobile applications with React Native
• Strong proficiency in JavaScript/TypeScript and React ecosystem including hooks, state management, and component architecture
• Experience with native iOS and Android development concepts and the ability to write native modules when needed
• Solid understanding of mobile app deployment processes for both App Store and Google Play Store
• Proficiency with AI/LLM tools to improve and accelerate development
• Knowledge of mobile-specific patterns including navigation, offline functionality, and platform-specific UI guidelines
• Experience with state management libraries (Redux, Zustand, or similar) and async data handling
• Proficiency with reactive programming patterns using RxJS and experience with local database solutions like WatermelonDB
• Familiarity with mobile testing frameworks and debugging tools for React Native applications
• Understanding of mobile security best practices and secure coding principles
• Strong problem-solving skills and ability to work independently in a remote, distributed team environment
• Excellent written and verbal communication skills for collaborating across time zones
• For candidates residing in the U.S.: This role may require the ability to obtain and maintain a U.S. government security clearance in the future. As such, U.S. applicants must be U.S. citizens and eligible under applicable clearance requirements.
• Applicants must meet eligibility requirements for access to export-controlled information as defined by U.S. export control laws, including EAR and ITAR.

Preferences:

• Previous experience building end user products for enterprises or security-focused users
• Contributions to open-source projects
• Knowledge of accessibility standards and implementing inclusive mobile experiences
• Has worked fully remotely with global teams
• Expertise in defense, intelligence, or security-focused workflows
  

Mattermost takes a market-based approach to pay and pay may vary depending on your location. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future.