Senior Blockchain Engineer, Madrid

hace 4 días

España Tether A tiempo completo

Senior Blockchain EngineerJoin Tether and Shape the Future of Digital FinanceAt Tether, we’re not just building products; we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses from exchanges and wallets to payment processors and ATMs to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally—all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction.Innovate with TetherTether Finance: Our innovative product suite features the world’s most trusted stablecoin, USDT, relied upon by hundreds of millions worldwide, alongside pioneering digital asset tokenization services.But that’s just the beginningTether Power: Driving sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in state-of-the-art geo-diverse facilities.Tether Data: Fueling breakthroughs in AI and peer-to-peer technology, we reduce infrastructure costs and enhance global communications with cutting-edge solutions like KEET, our flagship app that redefines secure and private data sharing.Tether Education: Democratizing access to top-tier digital learning, we empower individuals to thrive in the digital and gig economies, driving global growth and opportunity.Tether Evolution: At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways.Why Join Us?Our team is a global talent powerhouse working remotely from every corner of the world. If you’re passionate about making a mark in the fintech space, this is your opportunity to collaborate with some of the brightest minds pushing boundaries and setting new standards. We’ve grown fast, stayed lean, and secured our place as a leader in the industry.If you have excellent English communication skills and are ready to contribute to the most innovative platform on the planet, Tether is the place for you. Are you ready to be part of the future?TasksThe Senior Blockchain Engineer will work on a wallet development kit, an open-source tool for integrating various cryptocurrency primitives like payments, smart contract applications, and L2 into various projects like payments app and AI agent integrations.Key ResponsibilitiesDesign 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 a focus on security and key management.Create reliable payment processing systems that interface directly with blockchain nodes.RequirementsStrong 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.Buffer handling and cryptographic primitives.WebSocket/REST/RPC API interactions.Test-driven development practices.Understanding of Node.js runtime architecture.Nice to haveExperience with hardware wallet integration.Familiarity with P2P technologies like BitTorrent/DHT/Holepunch.Knowledge of BIP standards (BIP32, BIP39, BIP44, etc.).Familiarity with Layer 2 token DeFi protocols.javaScript, Node
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