Fireblocks Implementation Specialist – Blockchain Infrastructure Engineer
Hiring Now Fireblocks Implementation Specialist – Blockchain Infrastructure Engineer Dallas, TX / San Francisco, CA(Remote/Hybrid) 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. Core Requirements * 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 Key Responsibilities * 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 DevOps, Security, and Product teams on enterprise deployments * Support compliance and audit processes (SOC 2, ISO 27001, PCI) Preferred Background * Crypto exchanges / fintech / digital asset custody platforms * Fireblocks, BitGo, Coinbase Custody, MPC infrastructure * Blockchain infrastructure engineering * High-throughput transaction systems * Smart contracts / Solidity exposure Important: 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.