Senior Software Engineer (C++ / Distributed Systems / Blockchain Core)

<div style="text-align: justify;">We are looking for a <strong>Senior Software Engineer</strong> with strong modern C++ expertise to help design and evolve the distributed engine powering a global blockchain ledger. This role sits at the core protocol layer, working on high-impact distributed systems that secure consensus, transaction processing, and network performance. You will contribute directly to performance optimization, peer-to-peer networking, decentralization mechanisms, and security hardening against adversarial conditions. The position requires strong systems thinking and experience building reusable, extensible, production-grade components. You will engage deeply in technical design discussions, code reviews, and protocol-level architecture decisions. This is an opportunity to work on real-world, globally utilized blockchain infrastructure at scale.</div><div><br></div><div><strong>Details</strong></div><div><strong>Location: New York or San Francisco (relocation considered)</strong></div><div>Work Model: Hybrid</div><div>Employment Type: Full-time</div><div>Seniority Level: Senior</div><div>Industry: Blockchain / Distributed Systems</div><div>Start Date: ASAP</div><div><br></div><div><strong>Key Responsibilities</strong></div><div>Design, implement, and optimize core distributed ledger components</div><div>Contribute to consensus mechanism improvements and simulation models</div><div>Enhance performance, scalability, and decentralization of the core protocol</div><div>Improve peer-to-peer networking and resilience against coordinated attacks</div><div>Write high-performance, production-grade C++ code</div><div>Participate actively in architecture design, technical reviews, and protocol discussions</div><div>Build reusable, modular components aligned with long-term protocol evolution</div><div>Collaborate with engineers, researchers, and ecosystem stakeholders</div><div><br></div><div><strong>Requirements</strong></div><div>4+ years of professional software engineering experience</div><div>BS or MS in Computer Science or related field</div><div>Strong expertise in modern C++ (production environment experience required)</div><div>Solid understanding of distributed systems and networking concepts</div><div>Strong knowledge of software design patterns and modular architecture</div><div>Excellent communication skills and ability to lead technical discussions</div><div>Direct experience contributing to blockchain, decentralized ledger, DeFi, or crypto protocol projects — or demonstrated active engagement in Web3 ecosystems</div><div><br></div><div><strong>Nice to Have</strong></div><div>Experience with Rust</div><div>Experience contributing to open-source blockchain projects</div><div>Experience modeling or simulating distributed consensus systems</div><div>Background in cryptography or protocol-level security</div><div><br></div><div><strong>Interview Process</strong></div><div>Recruiter Interview</div><div>Three-part Take-Home Assessment</div><div>Hiring Manager Conversation</div><div>Virtual Onsite (technical + collaborative components)</div><div>Final Onsite in San Francisco with CTO / Head of Engineering</div>