Full Stack Blockchain Engineer

Fireblocks•New York, NY

18h•$177,000 - $230,000

About The Position

The Wallet Flows team is leading a strategic transformation of Fireblocks' core infrastructure. We're methodically redesigning and rewriting major system components to create next-generation architecture that enhances security, scalability, and performance. Our team blends industry veterans and rising talent, united by excellence and a results-driven mindset. We value seasoned expertise alongside fresh perspectives, fostering an environment where pragmatic solutions and innovation thrive together. We are looking for a Full Stack Engineer with a strong blockchain foundation. In this role, you will work across the entire stack from user-facing interfaces to backend services and on-chain integrations to build and evolve the systems that power institutional digital asset operations. You will serve as a technical bridge between raw blockchain capabilities and the polished wallet experiences delivered to customers. This means diving into protocol-level details one day and refining a transaction workflow UI the next. Your blockchain expertise will directly inform how we design, build, and ship features that handle billions in transaction volume.

Requirements

5+ years of full stack development experience with modern frontend frameworks (TypeScript) and backend services ( Go, or Python)
3+ years of hands-on experience in the blockchain ecosystem — working with protocols, on-chain data, smart contracts, or wallet infrastructure
Knowledge of consensus mechanisms, cryptographic primitives, and distributed systems
Strong understanding of microservices architecture, API design, and modern frontend patterns
Demonstrated ability to apply AI tools for programming with experience in vibe coding
Strong verbal and written communication skills and a collaborative mindset
Experience working in cross-functional teams and fast-paced environments
A curious mind, willing to learn, including new coding languages and tech stacks.

Nice To Haves

Experience building blockchain solutions for enterprise or institutional use cases
Understanding of security best practices for smart contracts and blockchain systems
Experience with MPC, multi-signature wallets, or other advanced cryptographic techniques
Experience with institutional DeFi, staking protocols, or custody solutions
Experience modernizing and transforming mission-critical production systems with minimal disruption
Bachelor's degree in Computer Science, Engineering, or related field; Master's degree preferred

Responsibilities

Design and build end-to-end features across frontend, backend, and blockchain layers that power Fireblocks' wallet infrastructure
Architect and deliver mission-critical components while maintaining 24/7 operations with zero disruption to live transaction volume
Research and integrate blockchain technologies including Layer 2 solutions, cross-chain bridges, staking protocols, and DeFi integrations into the Fireblocks platform
Develop intuitive, responsive interfaces that surface complex blockchain operations in a clear and actionable way for institutional users
Collaborate with blockchain foundations, vendors, builders, and customers to understand protocol design, tooling, and integration requirements
Balance pragmatism with vision - make smart trade-offs to deliver incremental value while steadily advancing toward next-generation architecture goals
Collaborate with product, engineering, and security teams to define technical requirements and deliver cohesive solutions
Mentor and guide other engineers on blockchain technologies, full stack patterns, and best practices