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Job Title: Fireblocks Custody infrastructure Specialist – Developer
Location: Dallas or San Francisco(remote/hybrid)
Employment Type: Contract
Job Summary
We are seeking a highly skilled Fireblocks Implementation Specialist – Developer to lead the integration and development of secure digital asset infrastructure using Fireblocks. This role requires strong backend engineering expertise, API integration experience, and deep knowledge of blockchain technologies and cryptographic security.
You will play a critical role in building secure, scalable systems for digital asset custody, transfers, and transaction workflows.
Key Responsibilities
- Design and implement integrations with Fireblocks APIs, SDKs, and webhooks
- Develop backend services for wallet management, transaction orchestration, and automation workflows
- Implement secure key management solutions leveraging MPC (Multi-Party Computation)
- Configure transaction policies, role-based access controls, and approval workflows
- Build monitoring, alerting, and reporting tools for digital asset operations
- Troubleshoot and resolve issues related to blockchain transactions and API integrations
- Collaborate with DevOps, Security, and Product teams to deploy scalable solutions
- Ensure adherence to U.S. compliance and security standards (SOC 2, ISO 27001, PCI where applicable)
- Support audit processes and maintain proper documentation
Required Qualifications
- 4+ years of software development experience (Java, Python, Node.js, or Go)
- Strong experience with REST APIs, webhooks, and microservices architecture
- Hands-on experience with Fireblocks or similar custody platforms (e.g., Coinbase Custody, BitGo)
- Solid understanding of blockchain protocols (Bitcoin, Ethereum, etc.)
- Knowledge of cryptography and key management (MPC, wallets, digital signatures)
- Experience with cloud platforms (AWS preferred, Azure/GCP acceptable)
- Familiarity with CI/CD pipelines, Docker, Kubernetes
- Strong debugging and system design skills
Preferred Qualifications
- Experience in fintech, crypto exchanges, or Web3 companies
- Knowledge of smart contracts (Solidity)
- Experience with HSMs (Hardware Security Modules)
- Understanding of U.S. regulatory environment (FinCEN, SEC considerations for digital assets)
- Prior experience working in client-facing or implementation roles
What does a Node.js developer in web3 do?
A Node developer in web3 is a software developer who specializes in creating and maintaining applications built on the Node.js platform and using web3 technology
Web3 is a term that refers to the collection of technologies and protocols that make up the decentralized web, also known as the Internet of value
This includes blockchain technology, peer-to-peer networking, and other technologies that enable users to exchange value and data in a decentralized manner
As a Node developer in web3, some of the responsibilities might include:
- Developing and maintaining web3 applications using Node.js
- Writing and testing code for smart contracts on blockchain platforms
- Implementing security measures to protect the integrity and confidentiality of data on the decentralized web
- Collaborating with other team members to design and implement web3 solutions
- Troubleshooting and debugging issues with web3 applications
- Staying up-to-date with the latest developments and best practices in the web3 ecosystem.