Senior React Native Engineer
Join Mattermost as a Senior React Native Engineer to enhance mobile experiences for teams in defense and critical infrastructure.
Posted by employer 3 months ago
First seen on Joblaze 1 week ago
Last verified on the company career page 3 days ago
Skills & Technologies
Not disclosed in this posting: years of experience, visa sponsorship.
Joblaze summary
The Senior React Native Engineer at Mattermost is responsible for enhancing the mobile experience for users in defense and critical infrastructure sectors, focusing on building resilient applications that function effectively in low-connectivity environments. Key skills include expertise in React Native, JavaScript/TypeScript, and a solid understanding of networking fundamentals, particularly in offline-first design. This role is ideal for experienced engineers with a background in mobile development and a strong grasp of security practices in regulated industries. Mattermost's commitment to open-source and remote-first collaboration further enriches the team dynamic.
Joblaze insights
- Listed 9 days ago on Joblaze — tracked directly from Mattermost's career page.
- Mattermost has 14 other open roles including Senior Full Stack Engineer, Senior Security Engineer, GRC Manager.
- 1940 active TypeScript roles on Joblaze right now.
- 1101 active JavaScript roles on Joblaze right now.
- 118 active React Native roles on Joblaze right now.
- Salary band is below the typical range for Mobile roles (median ~$190,000).
- Pays more than 43% of the 801 salaried TypeScript roles we track (median $172,000). See TypeScript salary trends
Quick facts
- Is the Senior React Native Engineer role remote?
- Yes — Mattermost lists this as a fully remote position.
- What's the salary range?
- Mattermost lists $165,000–$225,000 for this role.
- What's the tech stack?
- Joblaze extracted these technologies from the posting: Expo, HTTP, JavaScript, React Native, RxJS, TypeScript.
- What seniority level is this role?
- Mattermost targets senior candidates for this position.
- Is this full-time or contract?
- Full-time for this Senior React Native Engineer role at Mattermost.
From the original posting
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. 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.
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
- Uphold security and compliance standards required by government and enterprise clients
- Contribute to the open-source codebase
What We're Looking For
We care about what you've built and the problems you've solved — not how long you've been building. If you have strong outcomes to speak to in mobile engineering, we want to hear from you.
Required
- Demonstrated experience with React Native and JavaScript/TypeScript — you can speak to real tradeoffs you've navigated
- Strong understanding of networking fundamentals: HTTP, WebSockets, connection lifecycle, and how to build resilient apps over unreliable networks
- 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
Preferred
- 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
- Open-source contributions
- Experience in distributed or remote-first engineering teams
Compensation
Salary range: $165,000 – $225,000
Mattermost takes a market-based approach to pay. Compensation 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. Candidates must meet federal eligibility requirements to be considered. For more information visit Security Clearances — United States Department of State
Applicants must meet eligibility requirements for access to export-controlled information as defined by U.S. export control laws, including EAR and ITAR. For more information visit the Bureau of Industry and Security and the Directorate of Defense Trade Controls.