Senior Mobile Engineer

Mattermost

. Take ownership of the Mattermost mobile experience for defense, intelligence, and critical infrastructure teams .

Posted 10/31/2026full-timeRemote • United StatesSenior💰 $165,000 - $215,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates deep expertise in iOS and Android development, with a strong focus on mobile architecture, performance profiling, and reliability improvements. Capable of making architecture recommendations and mentoring engineers while ensuring compliance with security standards.

Highest-signal resume keywords

IOS DevelopmentAndroid DevelopmentMobile ArchitecturePerformance ProfilingAI Fluency

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Mobile Systems ReliabilityCrash Metrics AnalysisSynchronization TechniquesProduction DebuggingReal-Time CommunicationNative/Cross-Platform DevelopmentApp Lifecycle ManagementTelemetry UsageMobile Performance OptimizationArchitecture Recommendations

Soft Skills

MentoringCollaborationProblem-Solving

Tools & Technologies

React NativeTypeScriptMDMAppConfigIntune MAMWebRTCCallKitAndroid Audio APIs

Certifications & Qualifications

U.S. Government Security ClearanceEligibility for Export-Controlled Information

Industry Keywords

DefenseIntelligenceCritical InfrastructureOpen-Source ContributionsRegulated Environments

Tech Stack

Tools & technologies

AndroidiOSReactReact NativeTypeScript

About the role

Key responsibilities & impact

Take ownership of the Mattermost mobile experience for defense, intelligence, and critical infrastructure teams
Architect the app for DDIL and other constrained network environments
Improve reliability across connection lifecycle, synchronization, recovery, and failure scenarios
Own crash-free and release-health outcomes using telemetry to identify and resolve regressions
Profile and improve startup, networking, storage, rendering, memory, and battery performance
Own critical iOS and Android integrations and native/cross-platform boundaries
Maintain push notifications, background execution, secure storage, app lifecycle, and real-time communication capabilities
Build within App Store, enterprise, MDM, AppConfig, and Intune MAM deployment constraints
Diagnose production issues using native traces, telemetry, device profiling, and field logs
Make mobile architecture recommendations balancing near-term delivery and long-term platform direction
Mentor engineers on mobile architecture, reliability, performance, and platform best practices
Uphold security and compliance standards for government and enterprise customers
Contribute to the open-source codebase
Use AI coding tools effectively while maintaining reliability and quality
Partner with platform, feature, and customer-facing teams on field reports from constrained environments

Requirements

What you’ll need

Deep expertise in iOS or Android development, with strong working knowledge of the other platform
Strong understanding of mobile architecture, platform SDKs, lifecycle constraints, and networking fundamentals
Experience building reliable mobile systems through unreliable connectivity, local state changes, synchronization, and recovery
Strong mobile performance profiling and production debugging skills on real devices
Experience using production data, crash metrics, and release-health signals to drive reliability improvements
Experience making architecture recommendations and owning technical outcomes
Ability and willingness to work across native and cross-platform codebases
AI fluency and experience using coding agents to increase engineering output while applying judgment to ensure reliable outcomes
Must meet federal eligibility requirements for consideration
May require obtaining and maintaining a U.S. government security clearance
Must meet eligibility requirements for access to export-controlled information under U.S. export control laws, including EAR and ITAR
Preferred: Experience with React Native and TypeScript
Preferred: Experience with mobile persistence, synchronization, or offline-capable systems
Preferred: Experience with real-time communications or platform media frameworks such as WebRTC, CallKit, or Android audio APIs
Preferred: Experience with enterprise mobile distribution, MDM, AppConfig, or Intune MAM
Preferred: Experience building mobile software for security-sensitive, regulated, or operationally constrained environments
Preferred: Open-source contributions

Benefits

Comp & perks

Remote-first work environment
Medical coverage
Dental coverage
Vision coverage
Unlimited PTO
Company holidays
Work from home stipend
Annual learning and development budget for conferences, certifications, and courses
Paid parental leave for all parents
401(k) plan
Mission-driven work supporting secure collaboration for defense, intelligence, and critical infrastructure organizations
AI-forward environment
End-to-end ownership
Open-source developer community