Android Developer

SMARTFOX; United States; On-site; USD 90,000 - 140,000; Full time

Job summary

SMARTFOX in the United States is seeking an experienced Android Developer to design, build, and ship native Android apps using Kotlin and modern Jetpack components. You will turn product ideas and Figma designs into polished features for a wide range of devices, from budget phones to tablets.

You will own the release process on Google Play, implement robust architectures (MVVM/MVI/Clean), integrate REST/GraphQL/SDKs, and ensure performance, accessibility, and localization.

Qualifications

• Solid knowledge of Kotlin and Android app lifecycle.
• Hands-on experience with Jetpack libraries and modern architectures.
• Experience with REST, GraphQL, and offline-first design.
• Familiarity with Git, code review, and agile workflows.
• Bachelor's degree or equivalent experience in CS/SE.
• Authorization to work in the United States.

Responsibilities

• Design, build, and ship native Android apps.
• Turn product ideas and Figma designs into high-performance features.
• Own app releases on Google Play and manage feature flags.
• Ensure accessibility and localization across devices.
• Collaborate with product, design, iOS, backend, and QA teams.

Skills

Kotlin

Android lifecycle

Jetpack components

Networking

Concurrency

Git workflows

Agile teamwork

Communication

Problem solving

Product mindset

Education

Bachelor's degree in Computer Science, Software Engineering, or related field

Tools

Git

CI/CD tooling

Gradle

Job description

• Design, build, and ship native Android apps in Kotlin and Jetpack Compose that run smoothly on everything from budget phones to foldables and tablets
• Turn product ideas and Figma designs into polished, accessible, high-performance features, from first prototype to Google Play release
• Build clean, testable architecture using MVVM, MVI, or Clean Architecture, with modular, multi-module codebases that scale across teams
• Integrate REST and GraphQL APIs, WebSockets, Firebase Cloud Messaging, and third-party SDKs, and handle offline sync, background work, and error states gracefully
• Use Kotlin Coroutines and Flow, Hilt or Koin, Room, DataStore, WorkManager, Retrofit, and Jetpack libraries to keep code simple and reliable
• Write unit, UI, and screenshot tests (JUnit, Espresso, Compose Testing, MockK, Paparazzi) and keep CI/CD pipelines healthy with GitHub Actions, Bitrise, CircleCI, or Jenkins
• Profile and tune startup time, memory, battery, and rendering with Android Studio Profiler and Baseline Profiles, and track stability in Firebase Crashlytics, Sentry, or Datadog
• Own Google Play Console releases, staged rollouts, feature flags, A/B tests, and Play policy compliance
• Build with accessibility (TalkBack), localization, dark mode, and Material Design 3 in mind
• Support security and compliance needs such as Keystore, biometrics, encrypted storage, certificate pinning, and, where relevant, HIPAA, PCI-DSS, or SOC 2
• Use AI-assisted tools (Gemini in Android Studio, Copilot, Claude, or similar) carefully to speed up boilerplate, tests, and debugging, with your own judgment and code review on everything you ship
• Review pull requests, share knowledge, and collaborate daily with product, design, iOS, backend, and QA teammates
• Stay current with new Android releases, Google I/O announcements, and emerging tech like Kotlin Multiplatform, Wear OS, Android Auto, and on-device AI
• Level Typical experience What you’ll own
• Android Developer I / Junior - 0-2 years : Well-scoped features, bug fixes, tests, and UI polish, learning with a dedicated mentor and a clear path to mid-level
• Android Developer II - 2-5 years : Owning features end to end, contributing to architecture decisions, improving app performance and quality, and mentoring newer developers
• Senior Android Developer - 5+ years : Setting app architecture and standards, leading major initiatives and releases, driving technical decisions across teams, and growing the Android practice

Promotion criteria are written down at every level, with regular career conversations. Many of our Android developers have moved into staff engineer, mobile architect, engineering manager, and product engineering roles.

What you bring

Must have :-

• Solid knowledge of Kotlin, the Android app lifecycle, and core Jetpack components, plus understanding of data structures, networking, and concurrency
• Hands-on experience from a job, internship, bootcamp, open-source work, or apps you built yourself (Play Store apps, side projects, and hackathon builds count)
• Familiarity with Git, code review, and agile team workflows
• A product mindset: you care how the app feels in a real user’s hands, on real devices and real networks
• Clear communication in writing and in team discussions
• Bachelor’s degree in Computer Science, Software Engineering, or a related field, or equivalent experience. We care about what you can build
• Authorization to work in the United States

Nice to have (not required) :-

• Experience with Jetpack Compose, Kotlin Coroutines and Flow, or multi-module architecture
• Published apps on Google Play or a GitHub portfolio you can walk us through
• Experience with CI/CD, automated testing, Gradle build optimization, and release management
• Knowledge of performance profiling, accessibility, or mobile security best practices (OWASP MASVS)
• Experience with Room, offline-first design, GraphQL, or Bluetooth and sensor integrations
• Familiarity with Swift, React Native, Flutter, or Kotlin Multiplatform, and an interest in cross-platform collaboration
• Experience with on-device ML (ML Kit, TensorFlow Lite), Wear OS, Android Auto, or Android TV
• Contributions to open-source Android projects, technical blogs, or conference talks
• Industry background in [fintech, healthcare, e-commerce, media and streaming, travel, social, gaming, logistics, enterprise SaaS, etc.]
• Spanish fluency, an asset for bilingual products and teams [if applicable]
• Security clearance or willingness to obtain one [if applicable]