P2P Node.js Engineer - Holepunch

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a P2P Node.js Engineer - Holepunch based in Switzerland.

This is a fully remote engineering opportunity focused on advancing high-performance peer-to-peer networking and distributed <systems.You>’ll work on core P2P networking and storage primitives built around Node.js and modern decentralized technologies.The role offers the chance to solve challenging problems involving unreliable networks, low-latency communication, and scalable distributed <architectures.You>’ll contribute to technologies spanning protocols, networking, cryptography, serialization, and system performance.The environment is highly technical, autonomous, and globally distributed, with a strong emphasis on engineering excellence.Your work will directly influence the reliability, efficiency, and capabilities of next-generation P2P applications.This is an ideal opportunity for an experienced engineer passionate about networking, open-source technologies, and deep systems-level challenges.

Accountabilities

• Design, develop, and strengthen core peer-to-peer networking and storage primitives using Node.js and JavaScript.
• Implement and optimize P2P protocols and networking mechanisms, including technologies such as Kademlia, BitTorrent, libp2p, and hypercore.
• Develop high-performance networking code and optimize protocols for throughput, latency, reliability, and resource efficiency.
• Work with TCP/IP and UDP networking, including NAT traversal and communication across challenging network environments.
• Design and implement custom binary protocols, serialization formats, and secure communication mechanisms.
• Apply cryptographic primitives to support secure and reliable peer-to-peer communications.
• Profile, diagnose, and optimize networked systems to identify performance bottlenecks and improve overall efficiency.
• Contribute to the evolution of distributed systems designed to operate reliably across unreliable networks.
• Collaborate with engineering teams on technically complex problems and contribute to robust, production-ready solutions.

Requirements

• Extensive knowledge of peer-to-peer protocols and distributed networking, particularly Kademlia, BitTorrent, libp2p, or hypercore.
• Advanced JavaScript and Node.js development skills, with experience building high-performance networking applications.
• Strong understanding of UDP, TCP/IP, networking fundamentals, and NAT traversal techniques.
• Proven experience optimizing network protocols and distributed systems for performance and low latency.
• Experience implementing custom binary protocols and serialization formats.
• Familiarity with cryptographic primitives and their application in secure P2P communication.
• Strong experience with performance profiling, debugging, and optimization of networked systems.
• 5+ years of experience building production-grade P2P or distributed systems is preferred.
• Knowledge of V8 internals, JavaScript performance characteristics, libuv, or asynchronous I/O in C is highly valued.
• Experience with Node.js native addons and bridging JavaScript with C is an advantage.
• Contributions to open-source P2P projects or networking libraries are a plus.
• Strong problem-solving skills, technical curiosity, and the ability to work independently in a fully remote environment.
• Excellent English communication skills and the ability to collaborate effectively with distributed engineering teams.

Benefits

• 100% remote position with the flexibility to work from anywhere.
• Opportunity to work on challenging P2P networking, distributed systems, and Node.js technologies.
• International, remote-first environment with a globally distributed engineering team.
• Opportunity to contribute to innovative peer-to-peer applications and infrastructure.
• Exposure to advanced networking, cryptography, performance optimization, and decentralized technologies.
• High degree of autonomy and ownership over technically challenging engineering work.
• Opportunity to contribute to open-source technologies and projects.
• Collaborative environment focused on technical excellence and continuous innovation.