Dear applicants, please keep in mind that applications without provided salary expectations and active LN profile will not be considered. Hope for your understanding.
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.
Details
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
Key Responsibilities
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
Requirements
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
Nice to Have
Experience with Rust
Experience contributing to open-source blockchain projects
Experience modeling or simulating distributed consensus systems
Background in cryptography or protocol-level security
Interview Process
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