Senior Android Developer / Platform

Lever, Inc.; Fatih; On-site; TRY 350,000 - 500,000; Full time

Benefits offered by this job

Private health insurance

Meal and commute support

Relocation support

Flexible working options

Job summary

AppNation is seeking a Senior Android Developer to scale AI-powered mobile apps. You will own architecture, optimize performance, and ship native Android features across a Flutter-based portfolio.

Join a fast-moving team focused on quality, observability, and ownership, with opportunities to shape technical standards and drive product impact.

Qualifications

• 5+ years of professional Android development with production apps on Google Play.
• Kotlin and Jetpack Compose expert with strong architecture knowledge.
• Solid understanding of Android lifecycle, modular design, and platform APIs.
• Experience with memory management, performance profiling and ANRs.
• Familiarity with Gradle, CI/CD, app signing, and Google Play release processes.
• Willingness to learn Flutter and connect native Android with cross-platform code.
• English proficiency in a professional setting.

Responsibilities

• Build and maintain scalable Android apps using Kotlin and Jetpack Compose.
• Own native Android layer in Flutter apps, including architecture and integrations.
• Develop Android-native features like widgets, notifications, and Google Play Billing.
• Integrate AI capabilities on the native side with ML Kit and on-device models.
• Design maintainable architectures and boundaries between native and Flutter.
• Debug production issues: crashes, memory leaks, ANRs, and performance problems.
• Profile startup, memory, rendering, battery, and responsiveness with tools.
• Ensure apps run reliably across devices, OEMs, OS versions, and form factors.
• Improve testing, code review, CI/CD, release processes, and observability.
• Mentor Flutter developers for Android proficiency and share guidelines.
• Monitor Android platform updates and translate into technical proposals.

Skills

Kotlin

Jetpack Compose

Android architecture

Performance profiling

CI/CD practices

Mentoring

Android threading & concurrency

Mobile observability

Education

Bachelor's degree in Computer Engineering, CS or related field

Tools

Gradle

Android Studio Profiler

Perfetto

Firebase

Play Console / Google Play release

Flutter (willingness to learn)

Job description

About AppNation

We build AI-powered mobile apps that reach millions of users worldwide.

Since 2021, AppNation has been creating products across AI, productivity, and mobile experiences. Our apps, including Genie, Translate AI, and Arch, have reached 90M+ users globally and ranked among the top apps in 30+ countries.

We are a team of builders, designers, and engineers who move fast, take ownership, and create products used by millions.

About the Role

We're looking for a Senior Android Developer to help us build and scale world-class mobile experiences.

You'll work across our portfolio of AI-powered and consumer mobile apps, taking ownership from architecture decisions to production releases. You'll solve challenging engineering problems, improve app performance, and help shape the technical standards of our mobile team.

What You'll Do

• Build and maintain scalable, high-quality Android applications using Kotlin and Jetpack Compose
• Take ownership of the native Android layer in our Flutter apps, including architecture, integrations and platform-specific capabilities
• Build and ship Android-native features in our apps, such as home screen widgets with Glance, Live Updates and rich notifications, push notifications with FCM, Credential Manager and Sign in with Google, Google Play Billing and modern Material 3 experiences
• Bring AI capabilities to the native side where they make sense, using technologies such as ML Kit, on-device models with LiteRT, Gemini Nano through AICore, and Android speech and camera APIs
• Design and evolve maintainable Android architectures, reusable components and clear boundaries between native and Flutter layers
• Debug and resolve Android-specific production issues such as crashes, ANRs, memory leaks, performance regressions, networking problems and Flutter engine behavior on Android
• Profile and optimize app startup time, memory usage, rendering performance, battery usage and responsiveness using Android Studio Profiler and production monitoring tools
• Ensure our apps run reliably across the Android device ecosystem, including different OEMs, OS versions, screen sizes, tablets and foldables
• Improve engineering practices around testing, code review, CI/CD, release processes and mobile observability
• Act as the team's Android mentor by reviewing native code, writing internal guidelines, running knowledge-sharing sessions and helping our Flutter developers become confident on Android
• Keep a close eye on Android platform updates and Google Play requirements, such as target SDK deadlines and platform policy changes, and turn relevant developments into concrete technical and product proposals

What We're Looking For

• At least 5 years of professional Android development experience, including apps you have shipped and maintained in production on Google Play.
• Strong proficiency in Kotlin and hands-on production experience with Jetpack Compose
• Strong knowledge of Android application architecture, application and process lifecycle, modular design and platform APIs.
• Strong knowledge of the Android platform beyond the main app, including app widgets, services, WorkManager, push notifications, Google Play Billing, permissions and background execution.
• A solid understanding of Kotlin Coroutines, Flow, structured concurrency and thread safety.
• Strong understanding of Android memory management, lifecycle-related leaks and performance profiling.
• Comfortable using Android Studio Profiler, Perfetto and production diagnostics to identify and resolve performance, memory and ANR issues.
• Hands-on experience with Gradle configuration, dependency management, app signing, CI/CD and the full Google Play release process.
• Experience connecting native Android code with a cross-platform framework, or a strong willingness to learn Flutter.
• Familiarity with iOS and Swift is a plus.
• Experience working with Java or legacy Android codebases is a plus.
• Experience with Wear OS, Android TV or other Android form factors is a plus.
• Experience with Firebase, crash reporting, analytics, Play Integrity or mobile observability tools is a plus.
• Working proficiency in English.
• A bachelor's degree in Computer Engineering, Computer Science or a related field, or equivalent practical experience.

Why AppNation?

• Build and scale products reaching millions of users globally.
• Work with talented people in a fast-moving AI-first environment.
• Take ownership and see your impact directly in the products you build.
• Grow quickly with opportunities to lead projects and shape technical decisions.
• Enjoy competitive compensation and benefits, including private health insurance, meal and commute support, relocation support, and flexible working options.

Our Hiring Process

Application Review → Interview → Technical Assessment → Final Interviews

At AppNation, we set ambitious goals and challenge ourselves to build products that reach millions of people. We value curiosity, ownership, and continuous growth. If this role excites you and you're ready to make an impact, we'd love to hear from you.