P2P Node.js Engineer - Holepunch (100% Remote, Worldwide)

Location: Lugano, Switzerland; Lausanne, Switzerland; Geneve, Switzerland; Chiasso, Switzerland; Berne, Switzerland; Stockholm, Sweden; Colombo, Sri Lanka; Madrid, Spain; Barcelona, Spain; Seoul, South Korea; Johannesburg, South Africa Workplace: remote Join Tether and Shape the Future of Digital Finance At 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 Tether Tether 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 beginning: Tether 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? About the job P2P Node.js Engineer (Remote) We're big fans of Node.js — Holepunch is built on it. During this next growth phase, we could use your help to expand and strengthen our core P2P networking and storage primitives. Our P2P technology covers a wide surface area, so if the parts of this following tech profile fits you, we’d love to talk to you. Requirements Extensive knowledge of P2P protocols (Kademlia, BitTorrent, libp2p, hypercore) Demonstrable experience optimizing network protocols for performance Advanced JavaScript skills for implementing high-performance networking code Deep understanding of UDP and TCP/IP networking, including NAT traversal techniques Experience implementing custom binary protocols and serialization formats Familiarity with cryptographic primitives for secure P2P communication Experience with performance profiling and optimization of networked systems Preferred Qualifications 5+ years experience building production P2P systems or distributed systems Experience optimizing JavaScript for low-latency networking applications Knowledge of V8 internals and JavaScript performance characteristics Experience with libuv and asynchronous I/O in C Contributions to open-source P2P projects or networking libraries Experience building reliable systems on unreliable networks Experience with Node.js native addons and bridging between JS and C