P2P Node.js Engineer - Holepunch

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.