
Senior Android Engineer
Colossus Technologies Group
Job description
We're partnering with a fast-growing consumer technology company building an innovative product at the intersection of mobile software, connected hardware, data, and health & wellness.
The Android application is a primary way customers interact with the company's product—controlling and configuring their hardware while gaining personalized insights from their data. We're looking for a Senior Android Engineer who combines deep technical expertise with a strong eye for product quality and user experience.
What You'll Do:
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Build and ship high-quality features for a native Android application.
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Own features from technical design through development, testing, release, and iteration.
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Build polished, responsive user experiences using Jetpack Compose.
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Design scalable, maintainable, and testable Android architecture.
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Optimize application performance, reliability, and stability.
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Conduct code reviews and help maintain a high engineering-quality bar.
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Partner closely with Product and Design to create intuitive, polished mobile experiences.
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Collaborate with backend, firmware, hardware, and ML engineers on features spanning the technology stack.
What We're Looking For:
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8+ years of native Android development experience.
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Deep expertise in Kotlin.
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Strong production experience with Jetpack Compose.
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Strong knowledge of Coroutines & Flow.
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Experience with MVVM and/or MVI.
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Experience building scalable, testable, production-grade Android applications.
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Strong understanding of modern Android architecture and engineering best practices.
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Experience shipping polished consumer-facing mobile products.
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Ability to move quickly while maintaining a high bar for stability and code quality.
Bonus Points:
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Building custom UI components in Jetpack Compose.
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Connected hardware, IoT, Bluetooth/BLE, or peripheral integrations.
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Health, fitness, wellness, or medical technology.
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Experience developing software that interacts with physical products.
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High-growth startup or consumer technology experience.
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Mobile performance optimization and application reliability.
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CI/CD, automated testing, and mobile release engineering.