Senior Android Engineer (Web3)

TL;DR

Senior Android Engineer (Kotlin/Web3): Developing and optimizing high-performance crypto wallet features for a non-custodial ecosystem with an accent on security, reliability, and multi-chain integration. Focus on building scalable Android architecture, integrating complex blockchain SDKs, and ensuring high code quality through automated testing.

Location: Global Remote

Company

Leading non-custodial cryptocurrency wallet serving over 200 million users worldwide.

What you will do

• Own end-to-end development, maintenance, and migration of Android features.
• Collaborate on solution architecture and contribute to high-impact technical decisions.
• Work closely with backend, blockchain, and product teams to ship secure client-server features.
• Ensure code quality through rigorous tests, design reviews, and performance improvements.
• Stay updated with Android and Web3 technologies to drive their adoption within the product.

Requirements

• Minimum 5 years of professional Android development experience using Kotlin.
• Strong proficiency in Jetpack Compose, Coroutines, Flow, and Android Architecture Components.
• Experience with DI frameworks (Hilt/Koin) and modular architecture.
• Solid understanding of multithreading, concurrency, and REST/gRPC/WebSockets.
• Experience with local storage (Realm, SQLite, Room) and writing automated tests.
• Must have the right to work for the country you are based in.

Nice to have

• Active participation in the Web3 ecosystem as a crypto user.
• Experience with blockchain SDKs, key management, and cryptography.
• Knowledge of app security, secure storage, and sensitive data handling.
• Experience with Kotlin Multiplatform (KMP) for iOS and JS.
• Background in architecting SDKs and open-source libraries.

Culture & Benefits

• Fully remote work with flexible working hours.
• Opportunity to work within a world-leading blockchain ecosystem.
• Collaborative environment with diverse, world-class global talent.
• Flat organizational structure promoting learning and rapid career growth.
• Competitive salary and benefits package.