Sandboxx
Senior Android Engineer (AI-Accelerated)
Location: Middleburg, VA Type: Full-time Sandboxx is seeking a Senior Android Engineer who thrives in product-focused teams and is passionate about delivering seamless, secure, and delightful mobile experiences. You'll lead the development of our Android app used by thousands of military families, service members, and veteransand help shape how we incorporate AI to accelerate our engineering workflow and user experience. We're a mission-driven team building products that matter. If you're motivated by purposeful work, enjoy end-to-end ownership, and have experience leveraging AI coding tools to move faster and build smarter, this role is for you. What You'll Do
Build and evolve our flagship Android app using Kotlin and modern architecture patterns (MVVM, MVI, Clean Architecture). Translate Figma designs and functional specs into performant, pixel-perfect Android code. Integrate AI-enhanced features to support personalization, intelligent notifications, and natural-language interactions. Use AI coding tools (e.g., GitHub Copilot, Cursor) to streamline development, testing, and debugging workflows. Collaborate across product, design, and backend engineering to ship fast and learn faster. Maintain a high-quality codebase with well-structured tests and automated pipelines. Participate in code reviews, pair programming, and mentorship to elevate the team. Monitor performance and crashes, and iterate quickly on improvements. About You
5+ years of experience building production Android apps at scale, ideally in high-growth environments. Deep fluency with Kotlin and the Android SDK. Bonus points for experience with Jetpack Compose. Hands-on experience using AI-assisted development tools in your workflow. Strong foundation in Android Architecture Components (ViewModel, Room, Navigation, Lifecycle). Comfortable with asynchronous programming using Kotlin Coroutines and Flow. Experience integrating REST APIs and working with GraphQL is a plus. Prior experience deploying features via CI/CD pipelines (e.g., GitHub Actions, Bitrise, CircleCI). Passion for clean code, maintainable systems, and delightful UX. Familiarity with data privacy, mobile security best practices, and compliance requirements. Self-directed and proactiveespecially in a remote environment. Bonus: Experience with Firebase, Compose Multiplatform, or AI/ML SDKs on-device. Tech Stack
Languages & Frameworks: Kotlin, Jetpack Compose, Android SDK, XML Architecture: MVVM, MVI, Clean Architecture, Dependency Injection (Hilt/Koin) Networking: Retrofit, OkHttp, Apollo GraphQL AI & ML: ML Kit, Firebase ML, OpenAI (ChatGPT), TensorFlow Lite Testing: JUnit, Espresso, MockK, Robolectric CI/CD: GitHub Actions, Bitrise, Fastlane, Gradle Crash & Performance Monitoring: Firebase Crashlytics, Android Profiler, LeakCanary Tooling: GitHub Copilot, Android Studio (Giraffe+), Lint, ktlint, Detekt 3rd Party Libraries: Coil, Lottie, Moshi, Coroutines, Navigation Component Interview Process
Application Review
Assessed by our hiring manager. CTO Chat
30-minute intro focused on team fit and values. Technical Deep Dive
1-hour discussion with our Lead Android Engineer. In-depth Coding Session
A 4-hour real-world programming exercise focused on architectural thinking, clean code, and testing. Done in a collaborative format. Virtual Panel Interview
2 hours with team stakeholders. Includes a real-world Android coding exercise (we'll share context beforehand). Offer Stage
If it's a match, we move fast. Benefits & Perks
Competitive salary + equity options 100% company-paid health, dental, and vision (employee-only plans) 401(k) with company match Unlimited PTO + 11 company holidays + year-end holiday break 12 weeks paid parental leave for all parents $1,500/year learning & development budget $1,000/year wellness stipend Mission-driven team, startup autonomy, and the opportunity to improve lives in the military community At Sandboxx, we believe technology should serve peoplenot replace them. Come help us shape the future of how service members stay connected, informed, and empoweredwhile building with the tools of tomorrow.
Location: Middleburg, VA Type: Full-time Sandboxx is seeking a Senior Android Engineer who thrives in product-focused teams and is passionate about delivering seamless, secure, and delightful mobile experiences. You'll lead the development of our Android app used by thousands of military families, service members, and veteransand help shape how we incorporate AI to accelerate our engineering workflow and user experience. We're a mission-driven team building products that matter. If you're motivated by purposeful work, enjoy end-to-end ownership, and have experience leveraging AI coding tools to move faster and build smarter, this role is for you. What You'll Do
Build and evolve our flagship Android app using Kotlin and modern architecture patterns (MVVM, MVI, Clean Architecture). Translate Figma designs and functional specs into performant, pixel-perfect Android code. Integrate AI-enhanced features to support personalization, intelligent notifications, and natural-language interactions. Use AI coding tools (e.g., GitHub Copilot, Cursor) to streamline development, testing, and debugging workflows. Collaborate across product, design, and backend engineering to ship fast and learn faster. Maintain a high-quality codebase with well-structured tests and automated pipelines. Participate in code reviews, pair programming, and mentorship to elevate the team. Monitor performance and crashes, and iterate quickly on improvements. About You
5+ years of experience building production Android apps at scale, ideally in high-growth environments. Deep fluency with Kotlin and the Android SDK. Bonus points for experience with Jetpack Compose. Hands-on experience using AI-assisted development tools in your workflow. Strong foundation in Android Architecture Components (ViewModel, Room, Navigation, Lifecycle). Comfortable with asynchronous programming using Kotlin Coroutines and Flow. Experience integrating REST APIs and working with GraphQL is a plus. Prior experience deploying features via CI/CD pipelines (e.g., GitHub Actions, Bitrise, CircleCI). Passion for clean code, maintainable systems, and delightful UX. Familiarity with data privacy, mobile security best practices, and compliance requirements. Self-directed and proactiveespecially in a remote environment. Bonus: Experience with Firebase, Compose Multiplatform, or AI/ML SDKs on-device. Tech Stack
Languages & Frameworks: Kotlin, Jetpack Compose, Android SDK, XML Architecture: MVVM, MVI, Clean Architecture, Dependency Injection (Hilt/Koin) Networking: Retrofit, OkHttp, Apollo GraphQL AI & ML: ML Kit, Firebase ML, OpenAI (ChatGPT), TensorFlow Lite Testing: JUnit, Espresso, MockK, Robolectric CI/CD: GitHub Actions, Bitrise, Fastlane, Gradle Crash & Performance Monitoring: Firebase Crashlytics, Android Profiler, LeakCanary Tooling: GitHub Copilot, Android Studio (Giraffe+), Lint, ktlint, Detekt 3rd Party Libraries: Coil, Lottie, Moshi, Coroutines, Navigation Component Interview Process
Application Review
Assessed by our hiring manager. CTO Chat
30-minute intro focused on team fit and values. Technical Deep Dive
1-hour discussion with our Lead Android Engineer. In-depth Coding Session
A 4-hour real-world programming exercise focused on architectural thinking, clean code, and testing. Done in a collaborative format. Virtual Panel Interview
2 hours with team stakeholders. Includes a real-world Android coding exercise (we'll share context beforehand). Offer Stage
If it's a match, we move fast. Benefits & Perks
Competitive salary + equity options 100% company-paid health, dental, and vision (employee-only plans) 401(k) with company match Unlimited PTO + 11 company holidays + year-end holiday break 12 weeks paid parental leave for all parents $1,500/year learning & development budget $1,000/year wellness stipend Mission-driven team, startup autonomy, and the opportunity to improve lives in the military community At Sandboxx, we believe technology should serve peoplenot replace them. Come help us shape the future of how service members stay connected, informed, and empoweredwhile building with the tools of tomorrow.