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.

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