Fireblocks · 2 days ago
Senior Full Stack Engineer
United States
Full-time
Remote
Mid, Senior Level
3+ years expFireblocks is a leading company in the digital assets ecosystem, providing secure infrastructure for financial institutions and fintech companies. The Senior Full Stack Engineer will design and implement frontend experiences and backend services for Fireblocks' wallet infrastructure, collaborating closely with cross-functional teams to deliver high-impact features.
BlockchainCryptocurrencyCyber Security
Responsibilities
Design and implement rich frontend experiences and scalable backend services that power Fireblocks’ wallet infrastructure through the Dynamic platform
Own features across the stack: from technical design and architecture through implementation, testing, deployment, and ongoing optimization
Build and maintain backend services and APIs supporting authentication, wallets, and payments infrastructure
Develop user-facing features and frontend tooling for both end-user and developer-facing applications
Collaborate closely with Product, Design, and other engineering teams to deliver robust, high-impact features
Contribute to performance, reliability, and scalability improvements across the platform
Help uphold engineering best practices through code reviews, testing, documentation, and knowledge sharing
Qualification
Required
3–5 years of experience building and shipping production-grade, full-stack web applications
Strong experience with React and TypeScript on the frontend
Experience building backend systems and APIs using Node.js (and frameworks such as Express)
Comfort working across frontend and backend systems in complex, evolving codebases
A strong appreciation for clean, maintainable code and system performance
Experience collaborating cross-functionally with product and design partners
Curiosity about fintech and Web3, and interest in building infrastructure used at global scale
Preferred
Experience with blockchain technologies (e.g., EVM chains, wallets, on-chain integrations)
Solidity experience – writing, deploying, testing, or interacting with smart contracts in production environments
Experience maintaining, testing, and securing smart contract systems post-deployment
Experience with a variety of state management solutions in production React applications
Experience with security products or other high-sensitivity domains
Company
Fireblocks
Fireblocks is a blockchain security service provider for moving, storing, and issuing digital assets.
501-1000 employees
H1B Sponsorship
Fireblocks has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (4)
2024 (1)
2023 (4)
2022 (3)
Funding
Current Stage
Late StageTotal Funding
$1.04BKey Investors
Paradigm
2024-06-01Secondary Market
2023-02-01Series Unknown
2021-12-01Series E· $550M
Leadership Team
Michael Shaulov
CEO, co-founder
Idan Ofrat
Chief Product Officer & Co-Founder
Recent News
2025-12-24
Crowdfund Insider
2025-12-19
2025-12-18
Company data provided by crunchbase