Senior Blockchain Developer
Role details
Job location
Tech stack
Job description
We're hiring a Senior Blockchain Developer to join our blockchain infrastructure team. This is a hands-on, full-time engineering role focused on building and scaling our core chain architecture. You'll work directly on node infrastructure, consensus mechanisms, cross-chain systems, and protocol-level design alongside our application team.
What You'll Do
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Design, build, and maintain blockchain node infrastructure and settlement protocol architecture
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Implement and optimize consensus mechanisms (PoA, PoS, BFT variants) for enterprise-grade performance and finality
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Architect cross-chain communication and bridging systems for multi-network interoperability
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Collaborate with smart contract and application teams to deliver integrated blockchain solutions
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Drive security, scalability, and reliability across all chain-level systems
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Lead technical research on emerging protocols, L1/L2 architectures, and settlement patterns
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Provide technical guidance and mentorship to developers across the engineering organization
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Own documentation for blockchain architecture decisions, RFCs, and implementation standards
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Participate in code reviews and establish best practices for infrastructure development
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Identify and mitigate potential risks associated with blockchain solutions
Requirements
5+ years of software engineering experience, with 3+ years focused on blockchain development
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Deep hands-on experience with blockchain node infrastructure, consensus algorithms, and protocol-level system design
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Strong proficiency in one or more: Rust, Go, Solidity, Java, or Python
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Working knowledge of blockchain platforms such as Ethereum, Cosmos, Hyperledger, or comparable L1/L2 networks
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Solid understanding of cryptographic primitives, key management, and on-chain security practices
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Experience with cloud infrastructure (AWS, Azure, or GCP) and containerization (Docker, Kubernetes)
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Track record of shipping production blockchain infrastructure-not just smart contracts
Nice to Have
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Experience with stablecoin systems, CBDC infrastructure, or RWA tokenization
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Familiarity with cross-chain protocols
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Background in financial services, payments, or regulated settlement systems
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Understanding of regulatory and compliance requirements in digital asset markets, Applicants must be authorized to work in the United States. We are not able to provide visa sponsorship for this role. This is an on-site position based in Miami, FL.