Senior Blockchain Architect — Onsite in Miami

Global Settlement Network; Miami (FL); On-site; USD 170,000 - 210,000; Full time

Job summary

Global Settlement in Miami, FL is seeking a Senior Blockchain Developer to join our in-person infrastructure team. This full-time role focuses on building and scaling core chain architecture, node operations, consensus, and cross-chain systems, with collaboration across application teams.

You will work on designing blockchain solutions, leading development of blockchain services, and ensuring security, performance, and reliability across the stack, while mentoring engineers and documenting

Qualifications

• 5+ years of software engineering experience, including 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: Rust, Go, Solidity, Java, or Python
• Working knowledge of blockchain platforms such as Ethereum, Cosmos, Hyperledger, or comparable L1/L2 networks
• Solid grasp of cryptographic primitives, key management, and on-chain security practices
• Experience with cloud infrastructure (AWS, Azure, or GCP) and containerization (Docker, Kubernetes)
• A track record of shipping production blockchain infrastructure—not just smart contracts

Responsibilities

• Design and architect blockchain solutions that meet business and technical requirements
• Lead the development and implementation of blockchain-based applications and services
• Partner with cross-functional teams to integrate blockchain technology into Global Settlement's payment platform
• Ensure the security, scalability, and performance of blockchain solutions
• Conduct research and stay current with the latest advancements in blockchain technology
• Offer technical guidance and mentorship to development teams
• Build and maintain documentation for blockchain architectures and implementations
• Identify and mitigate potential risks tied to blockchain solutions
• Take part in code reviews and uphold best practices and coding standards
• 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 finality
• Architect cross-chain communication and bridging systems for multi-network interoperability
• Work with smart contract and application teams to deliver integrated blockchain solutions
• Drive security, scalability, and reliability across all chain-level systems
• Lead technical research on emerging protocols, L1/L2 architectures, and settlement patterns
• Provide technical mentorship to developers across the engineering organization
• Own documentation for blockchain architecture decisions, RFCs, and implementation standards
• Participate in code reviews and set best practices for infrastructure development

Tools

Docker

Kubernetes

AWS

Azure

GCP

Job description

Global Settlement in Miami, FL is seeking a Senior Blockchain Developer to join our in-person infrastructure team. This full-time role focuses on building and scaling core chain architecture, node operations, consensus, and cross-chain systems, with collaboration across application teams.

You will work on designing blockchain solutions, leading development of blockchain services, and ensuring security, performance, and reliability across the stack, while mentoring engineers and documenting