Lead Mobile Application Developer

First Due

Mobile Application Lead Developer building offline-first iOS applications for First Due’s fire and EMS emergency-response software. Leading mobile architecture, CI/CD, quality practices, and developer mentorship.

Posted 8/19/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $185,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in native iOS application development using Swift, with a strong focus on building offline-first architectures and integrating RESTful APIs. Proven ability to mentor teams, establish CI/CD pipelines, and drive mobile technology initiatives in cross-functional environments.

Highest-signal resume keywords

Native iOS Application DevelopmentSwift 5.xOffline-First ArchitectureRESTful API IntegrationCI/CD Automation

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

SwiftKotlinMVVMClean ArchitectureDebuggingPerformance OptimizationMemory ManagementXCTestJSON ParsingData Synchronization

Soft Skills

MentoringCollaborationIndependent DeliveryCustomer Requirement Understanding

Tools & Technologies

XcodeGitFigmaTestFlightFastlaneGitHub ActionsLuciqFirebase

Industry Keywords

Mobile DevelopmentEmergency ResponseFire and EMS AgenciesCross-Functional TeamsEngineering Best Practices

Tech Stack

Tools & technologies

AndroidFirebaseiOSKotlinSwift

About the role

Key responsibilities & impact

Architect, design, and develop native iOS applications for First Due’s emergency response platform serving Fire and EMS agencies
Design and implement offline-first architectures for reliable performance in low-connectivity emergency environments
Collaborate with cross-functional teams across US and India time zones
Establish and maintain mobile CI/CD pipelines, coding standards, code review practices, and quality assurance processes
Mentor developers on mobile best practices and First Due’s technology stack
Drive sprint planning, technical estimations, velocity tracking, and contribute to the mobile technology roadmap

Requirements

What you’ll need

10+ years of hands-on experience in native iOS application development using Swift
Exposure to Android development using Kotlin, Jetpack Compose, or Android architecture components
Knowledge of delivering mobile applications to both iOS and Android based on shared code
Proven experience building mission-critical, offline-first mobile applications
Ability to work with PM to understand customer requirements and deliver independently
Ability to use Luciq/Firebase to troubleshoot and understand customer issues
Strong understanding of MVVM and Clean Architecture
Expertise integrating RESTful APIs, data synchronization, and secure authentication mechanisms
Strong debugging, performance optimization, and memory management skills
Swift 5.x, SwiftUI, UIKit, CoreData, CoreLocation, and Background Tasks
Xcode, Git, Figma, and TestFlight
Fastlane, GitHub Actions, or similar CI/CD automation tools
RESTful services, JSON parsing, authentication and authorization
XCTest and automated UI testing frameworks
Authorization to work for any US employer in the United States
Ability to pass a criminal background check
Demonstrated ability to lead mobile development initiatives and establish engineering best practices is good to have

Benefits

Comp & perks

Medical, dental, and vision coverage
FSA/HSA
401(k)
Flexible PTO
Fully remote workplace
Technology stipend
Opportunities for advancement
Other benefits and perks
Minimal travel expectations
Reasonable accommodation during employment and the interview process