Principal Software Engineer, Mobile
$167,200–$209,000 year
On-site · Cambridge, Massachusetts, United States
Job Summary
CMT is seeking a Principal Software Engineer focusing on Android SDK development, requiring deep technical ownership and cross-functional tech leadership. Responsibilities include project planning in collaboration with product managers, owning significant components of the mobile technical stack, mentoring developers, leading code and design reviews, and improving development standards. Candidates must have 7+ years of experience, proficiency in Java and Kotlin, familiarity with Android JetPack libraries, and experience in Agile methodologies. The position offers a competitive salary range of $167,200 to $209,000, equity awards, and comprehensive benefits.
Required Qualifications
- Bachelor’s degree or equivalent years of experience and/or certification in a related field
- 7+ years of relevant professional experience
- Ability to do general development tasks on Linux and MacOS
- Fluency in a scripting language, like Python or Ruby
- Understanding of Agile development methodologies
- Experience with different application architectures
- Experience consuming and/or designing REST APIs
- Experience building, developing and delivering Android or iOS mobile applications and SDKs
- Basic understanding of end-to-end technical solutions
- Experience with continuous deployment and test-driven development
- Proficient in both Java and Kotlin
- Experience with Android JetPack libraries
- Fluency with the Gradle build system for Android
- Proficient in both Swift and Objective-C
Desired Qualifications
- Actively uses AI coding tools in development work
- Previous experience developing and maintaining SDKs or mobile platforms
- Experience with mobile observability practices
- Experience with background processing and battery optimization on Android
- Demonstrated history of technical leadership without authority
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