Mattermost
Senior React Native Engineer
United States · Senior
Sponsorship not specifiedDetected 28 days ago
JavaScriptTypeScriptReactReact NativeiOSAndroidWebSocketsIncident ResponseProject ManagementCollaborationMicrosoft OfficeMicrosoft Teams
About the role
- Teams operate across web, desktop, and mobile, with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365.
- Ranges may be updated as market conditions evolve.
Responsibilities
- Design offline-first storage and sync patterns, including conflict resolution strategies
- Drive performance improvements across network efficiency, package size, and memory consumption
- Own testing strategy for mobile platform-specific challenges
- This role sits at the intersection of mobile infrastructure, networking reliability, and offline-first architecture - building for users who operate in environments where connectivity is limited, security is non-negotiable, and the software they depend on has to work.
- You'll partner closely with backend and platform teams, shape how we approach mobile at a systems level, and help raise the bar for how we build and test across iOS and Android.
Requirements
- Demonstrated experience with React Native and JavaScript/TypeScript - you can speak to real tradeoffs you've navigated
- If you have strong outcomes to speak to in mobile engineering, we want to hear from you.
- Strong understanding of networking fundamentals: HTTP, WebSockets, connection lifecycle, and how to build resilient apps over unreliable networks
- Uphold security and compliance standards required by government and enterprise clients
Nice to have
- Experience with offline-first design - local persistence, sync strategies, and conflict resolution
- Familiarity with native iOS and/or Android development
- AI fluency and a track record of adapting to new tooling as the landscape evolves
- Experience with reactive programming patterns (e.g. RxJS) or mobile database solutions (e.g. WatermelonDB)
- Familiarity with the Expo framework, including migration from bare React Native
- Mobile security best practices in enterprise or regulated environments
- Background in defense, intelligence, or critical infrastructure products
- Experience improving mobile developer tooling or testing infrastructure
Compensation
- Salary range: $165,000 - $225,000
- Mattermost takes a market-based approach to pay.
- is determined based on skills, experience, qualifications, and work location.
- Ranges may be updated as market conditions evolve.
- U.S. Eligibility & Compliance
- This role may require obtaining and maintaining a U.S. government security clearance.
Benefits
- We do not tolerate discrimination against staff or applicants based on race, religion, national origin, age, disability, pregnancy status, veteran status, or other personal characteristics.
Company info
- What We're Looking For
- Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure.
- We are seeking a Senior React Native Engineer to take ownership of the Mattermost mobile experience for teams working in defense, intelligence, and critical infrastructure.
Equal opportunity
- Mattermost is an EEO Employer, we are a remote-first, open-source company.
Visa & Work Authorization
- government security clearance
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This listing is sourced directly from Mattermost's careers page and normalized into a canonical job model.