Senior React Native Engineer
M
MattermostDefense and Security
Location: United StatesFull-TimeSenior
Salary165,000 - 225,000 USD per year
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Job Details
- Required Skills
- AndroidJavascriptReact NativeTypeScriptNetworkingiOS
Requirements
- Demonstrated experience with React Native and JavaScript/TypeScript
- Understanding of networking fundamentals: HTTP, WebSockets, connection lifecycle
- Experience with offline-first design, local persistence, sync strategies, and conflict resolution
- Familiarity with native iOS and/or Android development
Responsibilities
- Architect and evolve the React Native application for deployment environments with limited or unreliable connectivity
- Define how the app handles WebSocket reliability and data synchronization across degraded network conditions
- Design offline-first storage and sync patterns, including conflict resolution strategies
- Shape mobile development tooling, code organization, and testing infrastructure
- Drive performance improvements across network efficiency, package size, and memory consumption
- Own testing strategy for mobile platform-specific challenges
- Mentor engineers on mobile architecture and best practices
- Contribute to the open-source codebase
- Uphold security and compliance standards required by government and enterprise clients
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