Staff Full Stack Engineer

Fireblocks; New York (NY); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Flexible vacation policy

Job summary

Fireblocks, located in New York, NY, is looking for engineers to innovate in the fintech space. Join a dynamic team focused on developing secure and scalable applications, where you will design and implement both frontend and backend solutions. Ideal candidates should have 3-5 years of experience with Node.js, React, and a keen interest in blockchain technologies.

With flexible vacation policies, this position offers the chance to shape the future of financial applications in an exciting, collaborative environment.

Qualifications

• 3–5 years of experience building and shipping production-grade web applications.
• Strong experience with React and TypeScript.
• Experience with blockchain technologies and smart contracts.

Responsibilities

• Design and implement rich frontend experiences for Fireblocks’ wallet infrastructure.
• Own features across the tech stack from design to optimization.
• Collaborate closely with Product and Design to deliver high-impact features.

Skills

Node.js

React

TypeScript

Blockchain technologies

Smart contracts

Cross-functional collaboration

Job description

Responsibilities

• The team operates with a strong product mindset and deep focus on security, reliability, scalability, and exceptional developer experience. Engineers at Dynamic build secure‑by‑default systems and approach their work with a strong customer focus, balancing technical excellence with real‑world user needs.
• You will be joining a passionate group that moves fast, works with the biggest names in payments and fintech, and is defining how the next generation of financial applications are built.
• 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.

Qualifications

• Experience building backend systems and APIs using Node.js (and frameworks such as Express).
• Curiosity about fintech and Web3, and interest in building infrastructure used at global scale.
• Comfort working across frontend and backend systems in complex, evolving codebases.
• Experience collaborating cross‑functionally with product and design partners.
• 3–5 years of experience building and shipping production‑grade, full‑stack web applications.
• Strong experience with React and TypeScript on the frontend.
• A strong appreciation for clean, maintainable code and system performance.
• 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.

Benefits

• Flexible vacation policy