Senior Software Engineer; C++​/Distributed Systems​/Blockchain Core

We are looking for a Senior Software Engineer 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.

Location:

New York or San Francisco (relocation considered)

Work Model:
Hybrid

Employment Type:

Full-time

Seniority Level: Senior

Industry: Blockchain / Distributed Systems

Start Date:

ASAP

• Design, implement, and optimize core distributed ledger components
• Contribute to consensus mechanism improvements and simulation models
• Enhance performance, scalability, and decentralization of the core protocol
• Improve peer-to-peer networking and resilience against coordinated attacks
• Write high-performance, production-grade C++ code
• Participate actively in architecture design, technical reviews, and protocol discussions
• Build reusable, modular components aligned with long-term protocol evolution
• Collaborate with engineers, researchers, and ecosystem stakeholders

• 4+ years of professional software engineering experience
• BS or MS in Computer Science or related field
• Strong expertise in modern C++ (production environment experience required)
• Solid understanding of distributed systems and networking concepts
• Strong knowledge of software design patterns and modular architecture
• Excellent communication skills and ability to lead technical discussions
• Direct experience contributing to blockchain, decentralized ledger, DeFi, or crypto protocol projects — or demonstrated active engagement in Web3 ecosystems

• Experience with Rust
• Experience contributing to open-source blockchain projects
• Experience modeling or simulating distributed consensus systems
• Background in cryptography or protocol-level security

• Recruiter Interview
• Three-part Take-Home Assessment
• Hiring Manager Conversation
• Virtual Onsite (technical + collaborative components)
• Final Onsite in San Francisco with CTO / Head of Engineering