Fireblocks Implementation Specialist – Blockchain Infrastructure Engineer

Hiring Now Fireblocks Implementation Specialist - Blockchain Infrastructure Engineer

Contract Opportunity | Multiple Openings

We are looking for senior engineers with strong experience in Fireblocks, HSM/MPC-based signing infrastructure, and large-scale blockchain application design to support enterprise‑grade digital asset custody and transaction platforms.

This is a highly technical backend/infrastructure-focused role — ideal for candidates with experience building secure blockchain systems in production environments.

• Hands-on experience with Fireblocks APIs, SDKs, and webhooks
• Strong understanding of HSM-based signing and secure key management
• Experience implementing MPC (Multi‑Party Computation) workflows
• Proven ability to design and support large-scale blockchain applications
• Strong backend engineering skills in Java, Python, Node.js, or Go
• Experience with REST APIs, microservices, and distributed systems
• Deep understanding of blockchain transaction lifecycle (
  Bitcoin / Ethereum
  )
• Experience with AWS, Docker, Kubernetes, CI/CD pipelines

• Build and support secure digital asset custody infrastructure
• Develop wallet management and transaction orchestration services
• Implement secure signing workflows and approval policies
• Design scalable blockchain transaction systems with high availability
• Troubleshoot production blockchain transaction and API integration issues
• Collaborate with Dev Ops, Security, and Product teams on enterprise deployments
• Support compliance and audit processes (SOC 2, ISO 27001, PCI)

• Crypto exchanges / fintech / digital asset custody platforms
• High-throughput transaction systems
• Smart contracts / Solidity exposure

This role requires deep backend and blockchain infrastructure experience. Candidates with only frontend Web3 or basic dApp development experience may not be the right fit.