Senior Blockchain Engineer

Summary

Join Tether, a leader in digital finance, and become a Senior Blockchain Engineer. You will contribute to the development of a wallet development kit, an open-source tool for integrating various cryptocurrency primitives into diverse projects. This role requires strong experience in building non-custodial cryptocurrency wallets and deep understanding of blockchain principles. You will design and implement modular wallet libraries, develop and integrate wallet modules, and create reliable payment processing systems. The position offers the opportunity to work remotely as part of a global team and contribute to cutting-edge technology in the fintech space.

Requirements

• Strong experience building non-custodial cryptocurrency wallets and key management systems
• Deep understanding of blockchain principles like the UTXO model
• Hands-on experience running and maintaining blockchain nodes (Bitcoin, Ethereum, etc.)
• Deep understanding of P2P networking concepts and distributed systems
• Strong focus on security best practices and cryptographic principles
• Advanced JavaScript/Node.js expertise, including: Modern ES6+ features and async programming
• Advanced JavaScript/Node.js expertise, including: Buffer handling and cryptographic primitives
• Advanced JavaScript/Node.js expertise, including: WebSocket/REST/RPC API interactions
• Test-driven development practices
• Understanding of Node.js runtime architecture

Responsibilities

• Design and implement modular non-custodial wallet libraries with support for multiple cryptocurrencies for mobile, web and server using Javascript
• Develop and integrate wallet modules for various blockchain protocols with focus on security and key management
• Create reliable payment processing systems that interface directly with blockchain nodes

Preferred Qualifications

• Experience with hardware wallet integration
• Familiarity with P2P technologies like Bitorrent/DHT/Holepunch
• Knowledge of BIP standards (BIP32, BIP39, BIP44, etc.)
• Familiarity with Layer 2, token, DeFi protocols

Benefits

Remote work