Mobile Engineer

Mark43 • Boston, MA

5h • $140,000 - $180,000 • Remote

About The Position

Mark43’s mission is to empower communities and their governments with new technologies that improve the safety and quality of life for all. We build powerful, scalable, and elegant software that sets a new standard for the tools upon which our first responders rely. Our users are diverse, and we are therefore committed to embracing diversity of thought and experience within our team. We’re seeking a Mobile Engineer to join our Engineering team. This role will play a critical part in developing both the Android and iOS versions of our public safety software using Kotlin Multiplatform (KMP) and Compose Multiplatform (CMP). You’ll have the opportunity to help shape Mark43’s mobile platform strategy while gaining hands-on experience with emerging cross-platform technologies. This is a pivotal moment in the evolution of our mobile platform, as we lay the foundation for a shared codebase that will define how we build Android and iOS experiences going forward. What you can expect to work on: Learn, explore, engage with mobile cross platform technology Build new features on KMP/CMP across Android and iOS Help the team migrate existing iOS/Android logic to KMP/CMP Learning both iOS and Android development fundamentals with mentorship and support from senior engineers Building and maintaining automatic test cases for iOS and Android Contributing to the design and development of mobile-first features used daily by first responders such as police officers and fire fighters Collaborating with product managers and designers to translate user needs and technical constraints into clean, reliable features Publishing and maintaining applications and versions in mobile app stores Continuously improving our mobile engineering practices to deliver performant and responsive applications

Requirements

• 2+ years of professional mobile development experience
• Experience in cross-platform mobile development, ideally with KMP (Kotlin Multiplatform) or CMP ( Compose Multiplatform)
• Ideal background in either Android (Kotlin) or iOS (Swift, SwiftUI ) with a willingness to learn the other platform
• Experience with Java backend is a plus
• Exposure to or interest in mobile testing strategies

Nice To Haves

• A strong sense of ownership and accountability
• Willingness to learn and work across platforms (especially Android-to-iOS growth or vice versa)
• Collaborative mindset with a passion for supporting mission-driven work

Responsibilities

• Learn, explore, engage with mobile cross platform technology
• Build new features on KMP/CMP across Android and iOS
• Help the team migrate existing iOS/Android logic to KMP/CMP
• Learning both iOS and Android development fundamentals with mentorship and support from senior engineers
• Building and maintaining automatic test cases for iOS and Android
• Contributing to the design and development of mobile-first features used daily by first responders such as police officers and fire fighters
• Collaborating with product managers and designers to translate user needs and technical constraints into clean, reliable features
• Publishing and maintaining applications and versions in mobile app stores
• Continuously improving our mobile engineering practices to deliver performant and responsive applications

Benefits

• Mentorship and support from experienced engineers and technical leaders
• Opportunities to grow personally and professionally through impactful projects
• A collaborative and mission-aligned team environment
• The chance to build software that directly improves the lives and safety of first responders and their communities
• health insurance
• paid time off
• 401(k) with a company match

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed
• Number of Employees: 251-500 employees