Senior Android Developer

Paybis is a global fintech company in the crypto and payments space, founded in 2014. As of 2026: 6.8M+ users, 180+ countries, $5B+ in lifetime transaction volume, $2B in volume in 2025 alone (+266% YoY). Recognised as Best Crypto Payments Provider at AIBC Awards Dubai 2026. Self-funded, profitable.

Mobile is our primary growth channel. We are building a native iOS/Android app as the core user-facing product — and we are hiring a Senior Android Developer to join the team.

You will work on a native Android application that processes real financial transactions for real users. You will take full ownership of features end-to-end — from architecture decisions to production release — and contribute to the quality and reliability of the Android codebase as a whole.

Security, reliability, and code quality are non-negotiable — not aspirational.

• Design, develop and ship production-ready Android features in Kotlin — Jetpack Compose and XML Views in production
• Make and defend architectural decisions within your scope — MVVM + Clean Architecture / MVI: know when to use what and why
• Build and maintain Android CI/CD pipelines: GitLab CI, Fastlane, or Bitrise
• Contribute to Google Play lifecycle: app signing, keystore management, release tracks, Play Console
• Write clean, performant, testable Kotlin code — uphold code quality standards in review
• Implement mobile security requirements: Android Keystore, EncryptedSharedPreferences, biometric auth, root detection, SSL/certificate pinning
• Configure and own Jetpack suite: ViewModel, StateFlow, Navigation, Room, WorkManager
• Collaborate with Backend, Product, Design, and QA — represent Android in cross-team conversations
• Create technical documentation for Android components you own
• Participate in sprint planning, product design sessions, and roadmap discussions

Must have:

• 4+ years of commercial Android development in Kotlin — idiomatic Kotlin, not Java-in-Kotlin
• Jetpack Compose in production — real screens shipped to users, not demos
• Strong XML/View system foundation alongside Compose
• Good command of architectural patterns: MVVM + Clean Architecture — can articulate trade-offs vs MVI
• Kotlin Coroutines and Flow — used in production
• Memory management: solid understanding, can identify and fix leaks
• Networking: Retrofit + OkHttp, interceptors, token refresh, robust error handling
• Android security: EncryptedSharedPreferences, Android Keystore, biometric auth, root detection, SSL/certificate pinning
• Dependency injection: Hilt/Dagger — production experience
• Android CI/CD: GitLab CI, Bitrise or Fastlane — has worked with pipelines
• Google Play lifecycle: app signing, release tracks, Play Console — end-to-end experience
• Testing: JUnit, Mockk — writes testable code
• English B2+ — PRs, tickets, async communication
• Ownership mindset — drives tasks to completion without micromanagement

Nice to have:

• Experience in fintech, crypto, payments or banking Android apps
• KYC SDK integration (Sumsub, Onfido or similar) on Android
• Payment SDK integration at Android level (Checkout.com, Stripe, etc.)
• Real-time data: WebSocket or SSE for live crypto prices or order status
• Firebase suite: Analytics, Crashlytics, Remote Config, A/B testing
• Multi-module Android architecture — feature modules experience
• Performance profiling with Android Studio Profiler
• Kotlin Multiplatform Mobile (KMM) — any exposure
• Detekt or other static analysis tooling
• AI tools in daily development (GitHub Copilot, Cursor, etc.)

Kotlin · Jetpack Compose · Coroutines & Flow · MVI · MVVM + Clean Architecture · Hilt / Dagger · Retrofit + OkHttp · WorkManager · Android Keystore · EncryptedSharedPreferences · Root Detection · SSL Pinning · KYC SDK integration · REST · WebSocket · GitLab CI/CD

First 30 days — Onboarded into the codebase and team processes. First features in development. Understand team architecture and stack.

First 90 days — Shipping features independently. Actively contributing to code review and technical discussions. Trusted member of the Android team.

First 6 months — Consistent delivery of high-quality production features. Proactively identifies and improves areas of the codebase. Acts as a reliable technical contributor in cross-functional discussions.

1. Technical interview
2. Cultural fit interview with HRD
3. Final interview with Engineering leadership

• Ownership of features end-to-end — from architecture to production
• Real product at scale: 6.9M users, $5B+ lifetime volume — your code runs in production
• Product company, not an agency — you own what you build, end to end
• Modern, clean stack: Kotlin, Jetpack Compose, native Android — no Java legacy
• Fintech + crypto domain: technically demanding, non-trivial security and UX challenges
• Remote-first, high autonomy, minimal micromanagement
• Self-funded, stable company — no investor pressure

• Fast pace and shifting priorities — adaptability is not optional
• High bar for quality, security, and reliability — real user money is at stake
• Compliance constraints shape some engineering decisions

Paybis is an equal opportunity employer. We welcome engineers who write Kotlin every day and take ownership seriously.