Android Developer (IoT & Java+Kotlin Focus)

*About Byte Technology* Byte provides smart unattended retail solutions that help foodservice teams offer fresh and frozen food, snacks, beverages, and grab-and-go meals 24/7. Our platform combines smart fridges, freezers, ambient kiosks, and software to help operators launch and scale modern retail programs in hospitals, universities, and workplaces. *Role Overview* We are seeking a highly skilled Android Developer to lead the architecture, development, and scaling of our mobile applications. In this role, you will leverage your deep expertise in native Android development (Java/Kotlin) to build high-performance applications that interface directly with our custom hardware and IoT ecosystem. You will act as a technical pillar for the mobile team, bridging the gap between native Android environments and connected physical devices. If you excel at solving complex architectural challenges, optimizing mobile-to-hardware communication, and mentoring engineers, we want you on our team. *Key Responsibilities* * *IoT & Hardware Integration:* Design and implement robust, low-latency communication layers between our mobile applications and custom hardware components using protocols like Bluetooth Low Energy (BLE), Wi-Fi Direct, NFC, MQTT, or USB OTG. * *Architect and Build:* Design, maintain, and optimize high-performance, reusable code across both native Android (Java/Kotlin) and React Native environments. * *Technical Leadership:* Serve as a subject matter expert for Android development and hardware integration. Drive technical decisions, establish best practices for mobile architecture (e.g., MVVM, Clean Architecture), and enforce code quality through rigorous reviews. * *Performance Optimization:* Profile and optimize applications for speed, memory usage, and battery life, ensuring that background hardware communication does not degrade the user experience. * *Cross-Functional Collaboration:* Work closely with firmware engineers, hardware designers, product managers, and backend engineering teams to deliver robust, scalable connected solutions from conception to deployment. *Required Qualifications* * *Native Android Mastery:* Deep, extensive knowledge of Java and the Android SDK. Strong proficiency in Kotlin and modern Android development practices (Coroutines, Jetpack components). * *Hardware/IoT Expertise:* Proven track record of integrating Android applications with external hardware, connected sensors, or IoT devices. Experience with the Android Bluetooth/BLE stack, background processing, and connected device lifecycles. * *System Design:* Solid understanding of mobile system design, RESTful APIs, offline storage, concurrency, and performance tuning. * *Tooling & DevOps:* Experience with mobile CI/CD pipelines (e.g., Bitrise, GitHub Actions), Gradle, and automated testing frameworks (JUnit, Espresso, Jest). * *Version Control:* Expert-level proficiency with Git. *Work Requirements* * 5+ years of professional software development experience, with a primary focus on native Android development. * Must be based in the San Francisco Bay Area, preferably the North Bay. Our office is located in Petaluma. * Must be legally authorized to work in the United States. *Good Fits* * Team-oriented with excellent communication skills. Proactive and comfortable contributing ideas. * Data-driven decision-maker. * Enjoys working with small, agile development teams. Pay: From $120,000.00 per year Benefits: * 401(k) * Dental insurance * Flexible schedule * Health insurance * Vision insurance Experience: * Android development: 4 years (Preferred) Ability to Commute: * Petaluma, CA 94954 (Preferred) Work Location: In person