Blockchain Engineer

About This Role

Building and scaling the core chain architecture on institutional settlement infrastructure is the focus of this senior engineering role. It involves working on node infrastructure, consensus mechanisms, cross-chain systems, and protocol-level design, with hands-on engineering on production systems. This position is suitable for an experienced blockchain engineer with a strong background in Rust, Go, or comparable languages.

Responsibilities

• Design, build, and maintain blockchain node infrastructure and settlement protocol architecture
• Implement and optimize consensus mechanisms (PoA, PoS, BFT variants) for enterprise-grade performance and deterministic finality
• Architect cross-chain communication and bridging systems for multi-network interoperability
• Drive security, scalability, and reliability across all chain-level systems, and identify and mitigate the risks they carry
• Debug and harden production systems: consensus edge cases, node performance, and on-chain security
• Lead technical research on emerging protocols, L1/L2 architectures, and settlement patterns, and translate it into shipped code
• Collaborate with smart contract, application, and banking-integration teams to deliver integrated settlement solutions
• Own the RFCs, architecture decision records, and implementation standards engineering builds against, and mentor engineers through code and design review
• Spend approximately 80% of time coding, 10% strategizing and coordinating, and 10% documenting

Requirements

• 5+ years of software engineering, with 3+ years focused on blockchain development
• Deep hands-on experience with blockchain node infrastructure, consensus algorithms, and protocol-level system design
• Strong proficiency in one or more of Rust, Go, Solidity, Java, or Python, and the flexibility to switch stacks as the roadmap moves
• Production experience with Ethereum, Cosmos, Hyperledger, Canton, or comparable L1/L2 networks
• Track record of shipping production blockchain infrastructure, not just smart contracts
• Command of cryptographic primitives, key management, and on-chain security practices
• Cloud infrastructure (AWS, GCP, or Azure) and containerization (Docker, Kubernetes)
• Startup work ethic and heavy use of productivity and coding tools to multiply your own output and the team’s
• Ability to take a three-bullet brief and execute without hand-holding

Nice to have:

• Stablecoin systems, CBDC infrastructure, or RWA tokenization
• Cross-chain and interoperability protocols
• Financial services, payments, or regulated settlement background
• Digital asset compliance and regulatory requirements