Principal Android Engineer (Platform Architecture & Technical Leadership)

cosmo technologies • Canada

Remote

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AI Summary

Lead the technical direction of COSMO’s Android platform as a Principal Engineer, defining architecture, security, and performance standards while mentoring engineers and solving cross-layer technical challenges. Requires 8+ years of Android expertise, 6+ years of leadership, and deep domain knowledge in critical platform domains like GNSS, networking, or system services. Drive org-wide engineering processes and influence product roadmaps in a fast-growing, remote-first company.

Key Highlights

Set technical strategy and architecture for Android platform across teams and products

Act as the deep technical authority in critical domains (e.g., GNSS, calling, networking) and mentor engineers at all levels

Lead end-to-end technical design, tradeoff evaluation, and cross-functional alignment for complex, ambiguous problems

Key Responsibilities

Define and own the technical strategy, architecture, reliability, performance, and security of the Android platform across teams and products

Serve as the deep technical authority in one or more critical domains (e.g., GNSS, calling, networking, connectivity) and resolve hard-to-diagnose system failures

Lead technical design end-to-end, including scoping ambiguous problems, evaluating tradeoffs, producing/reviewing design docs, and aligning stakeholders on approaches

Own AIDL interfaces, hardware-driver integration, and cross-layer issues spanning hardware, system services, performance, battery, memory, and applications

Define and model engineering processes (PR hygiene, unit testing, code review) and mentor engineers at all levels, including onboarding new hires

Act as the senior technical point of contact for hardware, firmware, product, design, and QA teams, translating technical requirements across disciplines

Drive platform-wide standards, tooling, and best practices, and influence the technical roadmap beyond single areas

Set direction on AI-assisted development and drive adoption where it improves quality or productivity

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Technical Skills Required

Android (SDK, Framework, System Services) Kotlin/Java AIDL/Binder

Benefits & Perks

Competitive salary

100% employer-paid supplemental medical policy

Remote working environment

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Nice to Have

Deep experience with smartwatches, wearables, or embedded Android

Experience with Linux drivers, JNI, C/C++, Soong, or AOSP build system

Published Android applications or open-source contributions

Experience with design systems and global product releases

Familiarity with responsible AI-assisted development practices

Job Description

At COSMO, we inspire kids through innovative technology and a supportive community. Our family-centric products, such as the award-winning JrTrack Kids Smartwatch, enhance children's independence and confidence. This all-in-one device functions as a phone, GPS tracker, and music player, managed via the Mission Control Parent App, which allows parents to set safety alerts and manage contacts. Recognized as a top kids' wearable by PCMag and others, Cosmo is on the rise.

Department: Engineering

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