Blockchain Kotlin Engineer (Senior / Expert)

About the company

Trust Wallet is the world’s most inclusive, chain-agnostic, self-custody wallet, serving over 100 million users globally. It offers a secure, seamless, and intuitive gateway to Web3, enabling users to send, receive, stake, swap, and store over 10 million cryptocurrencies across 100+ blockchains, including Bitcoin, Ethereum, Solana, BNB Smart Chain, and many more. Trust Wallet also supports a diverse developer community, helping them reach millions of users, build their own wallets, and drive crypto adoption.

Job Description

As a Blockchain Kotlin Engineer, you’ll be part of one of our product squads, primarily focusing on the development of Wallet Kit — our cross-platform SDK that unifies blockchain logic for iOS, Android/JVM, and Web/JS platforms.

While your main responsibility will be advancing Wallet Kit’s capabilities, you will also actively contribute to our business logic SDK, helping deliver product features across both iOS and Android apps. Your work will span core blockchain functionality and product-layer integrations, ensuring seamless developer experience and cross-platform consistency.

Qualifications

• Minimum 4 years of software engineering experience, with a strong focus on Kotlin and SDK/Library development.

• Solid understanding of blockchain technology, smart contracts, and decentralized applications. Familiarity with the intricacies of blockchain integrations and how they interact with various SDKs.

• Strong problem-solving skills and the ability to work autonomously within a fast-paced, high-stakes environment.

• Excellent communication skills, with a proactive approach to client support and team collaboration.

• Adept in modern development practices, including automated testing and continuous integration for library development.

Responsibilities

• SDK Development: Spearhead the design, development, and optimization of Kotlin Multiplatform SDKs for blockchain wallets.

• System Architecture: Design robust architectures ensuring that the SDK integrates seamlessly with various blockchains and third-party systems.

• Feature Innovation: Take the lead in enhancing and expanding the capabilities of the SDK, making it adaptable to the ever-evolving blockchain landscape. Explore blockchain innovation to bring to the SDK and our clients.

• Collaboration and Documentation: Craft clear, comprehensive documentation for SDK. Offer proactive support to developers, guiding seamless integration and troubleshooting potential issues to safeguard user assets.

Nice to have:

• Previous engagement in blockchain-specific projects, especially related to wallet development.

• Open-source contributions and long-term engagements

• Experience with iOS/Android/Web platforms

• Deep understanding of distributed systems and cryptographic principles.

• Proficiency in working with different blockchain protocols and standards.

• Previous experience in Golang, Rust or Solidity is a plus.

Working at Trust Wallet

• Do something meaningful; Be a part of the future of finance technology and the no.1 company in the industry

• Fast moving, challenging and unique business problems

• International work environment, flat organization, flexible working hours

• Great career development opportunities in a growing compan

Additional Information

You must have the right to work for the country you are based.

Why work at Trust Wallet?

• Be a part of the world’s leading blockchain ecosystem that continues to grow and offers excellent career development opportunities.

• Work alongside diverse, world-class talent, in an environment where learning and growth opportunities are endless.

• Tackle fast-paced, challenging and unique projects.

• Work in a truly global organization, with international teams and a flat organizational structure.

• Enjoy competitive salary and benefits.

• Balance life and work with flexible working hours and casual work attire.

Apply today to join our team in building the world’s most trusted and secure crypto wallet

and enable a decentralized future for everyone.