Senior Full-Stack Engineer, DX
Fireblocks
Posted: February 17, 2026
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Quick Summary
The Senior Full-Stack Engineer at Fireblocks is responsible for designing, developing, and deploying high-performance blockchain applications, ensuring seamless integration with their distributed ledger technology. The ideal candidate will have experience in building scalable and secure blockchain-based systems, with a strong background in programming languages, particularly JavaScript, and experience with containerization (kubernetes).
Required Skills
Job Description
The world of digital assets is accelerating in speed, magnitude, and complexity, opening the door to new ways for leveraging the blockchain. Fireblocks’ platform and network provide the simplest and most secure way for companies to work with digital assets and it trusted by some of the largest financial institutions, banks, globally-recognized brands, and Web3 companies in the world, including BNY Mellon, BNP Paribas, ANZ Bank, Revolut, and thousands more.
About the job
The world of digital assets is accelerating in speed, magnitude, and complexity, opening the door to new ways for leveraging the blockchain. Fireblocks’ platform and network provide the simplest and most secure way for companies to work with digital assets and it trusted by some of the largest financial institutions, banks, globally-recognized brands, and Web3 companies in the world, including BNY Mellon, BNP Paribas, ANZ Bank, Revolut, and thousands more.
About the Team
The Developer Experience (DX) team at Fireblocks is dedicated to building infrastructure and tools that empower developers to seamlessly integrate with our platform.
We’re seeking a seasoned full-stack developer to join our team and play a key role in shaping the developer journey by creating scalable, reliable, and developer-friendly solutions.
What You’ll Do
• Design, implement, and maintain robust microservices supporting high-throughput and low-latency operations.
• Build and optimize backend systems that enable developer-facing products such as SDKs, APIs, and webhooks.
• Work with both relational and NoSQL databases to ensure data consistency, scalability, and performance.
• Collaborate with cross-functional teams to design systems that meet operational and business requirements.
• Research and implement cloud-native architectures to support Fireblocks’ growth and scalability.
• Contribute to the creation of developer tools and standards that improve the usability of our APIs and SDKs.
About You
• You have 5+ years of experience in backend development, with a strong focus on scalable infrastructure.
• Proficiency in Node.js and TypeScript is required; additional experience with other backend languages is a plus.
• Strong expertise in relational and NoSQL databases, including schema design, query optimization, and troubleshooting.
• Proven experience designing and deploying microservices-based architectures in production environments.
• Hands-on experience with cloud providers (AWS, GCP, Azure) and container orchestration tools (e.g., Kubernetes, Docker).
• Solid understanding of system design principles, distributed systems, and scalability.
• Experience with monitoring and logging frameworks (e.g. Datadog, Prometheus, Grafana, ELK stack).
• Deep understanding of REST APIs and event-driven architectures
• Advantage - Familiarity with AWS, Servers-less
• Strong problem-solving skills, with the ability to troubleshoot production issues effectively.
• Ability to manage multiple priorities and thrive in a service-oriented, fast-paced environment.
Bonus Points
• Hands-on experience in designing developer-friendly SDKs and APIs.
• Hands-on experience using LLMs in development workflows (e.g., GPT, Claude, or similar) for code generation, refactoring, documentation automation, test generation, or debugging assistance.
• Knowledge of CI/CD pipelines and best practices for automated testing and deployment.
• Experience building modern web applications using React and TypeScript.
Why Join Fireblocks?
• Be at the forefront of blockchain innovation, shaping the future of finance and Web3.
• Collaborate with a passionate team of professionals in a dynamic, inclusive environment.
• Work on cutting-edge infrastructure that impacts thousands of developers globally.
• Enjoy opportunities for professional growth and continuous learning.
If you’re a full-stack developer passionate about building scalable systems and enhancing developer experiences, we’d love to hear from you!
Fireblocks' mission is to enable every business to easily and securely access digital assets and cryptocurrencies. In order to do that, we strongly believe our workforce should be as diverse as our clients, and this is why we embrace diversity and inclusion in all its forms.
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