1,468 Blockchain Engineer jobs in the United States

• Lead the design, development, and implementation of blockchain-based applications and smart contracts.
• Develop and optimize smart contracts using languages such as Solidity, Vyper, or Rust.
• Architect and build decentralized applications (dApps) on various blockchain platforms (e.g., Ethereum, Polygon, Solana).
• Integrate blockchain technologies with existing systems and front-end interfaces.
• Conduct thorough code reviews, security audits, and performance optimizations for smart contracts and dApps.
• Collaborate with product managers, designers, and other engineers to define project requirements and deliver high-quality solutions.
• Stay ahead of the curve on emerging blockchain technologies, protocols, and industry trends.
• Mentor and guide junior blockchain developers, fostering a culture of technical excellence.
• Troubleshoot and resolve complex technical issues related to blockchain network performance and smart contract execution.
• Ensure the security, scalability, and efficiency of all blockchain solutions.

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• Minimum of 6 years of professional software development experience, with at least 3 years focused specifically on blockchain technology.
• Proven experience developing and deploying smart contracts on major blockchain platforms.
• Proficiency in smart contract programming languages (Solidity is essential; Vyper, Rust are a plus).
• Strong understanding of blockchain architecture, consensus mechanisms, and cryptography.
• Experience with decentralized application frameworks and tools (e.g., Truffle, Hardhat, Web3.js).
• Familiarity with various blockchain networks and their unique characteristics.
• Experience with version control systems like Git.
• Excellent problem-solving, debugging, and analytical skills.
• Strong communication and leadership abilities, crucial for managing a remote team.
• Experience with security best practices for smart contracts and blockchain applications.

• Design, develop, and deploy smart contracts and decentralized applications (dApps) using languages like Solidity.
• Architect and implement secure, scalable, and efficient blockchain solutions.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Integrate blockchain technology with existing enterprise systems and third-party applications.
• Conduct thorough code reviews and contribute to maintaining high code quality standards.
• Research and implement new blockchain technologies and protocols.
• Troubleshoot, debug, and upgrade existing systems.
• Mentor junior blockchain developers and share knowledge within the team.
• Contribute to the overall technical strategy and roadmap for blockchain initiatives.
• Ensure the security and integrity of blockchain-based systems.

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• 5+ years of experience in software development, with at least 3 years focused on blockchain technologies.
• Proficiency in smart contract development using Solidity or similar languages.
• Strong understanding of blockchain concepts, cryptography, and distributed ledger technologies.
• Experience with popular blockchain platforms (e.g., Ethereum, Polygon, Solana).
• Familiarity with Web3.js, Ethers.js, or similar libraries.
• Experience with backend development (Node.js, Python, Go) and RESTful APIs.
• Excellent problem-solving and analytical skills.
• Strong communication and collaboration abilities, essential for a remote role.
• Ability to work independently and manage time effectively in a remote-first environment.

• Competitive compensation, including base pay and annual incentive
• Comprehensive health and life insurance and well-being benefits, based on location
• Pension / Retirement benefits
• Paid Time Off and Personal/Family Care, and other leaves of absence when needed to support your physical, financial, and emotional well-being.
• DTCC offers a flexible/hybrid model of 3 days onsite and 2 days remote (onsite Tuesdays, Wednesdays and a third day unique to each team or employee).

• Design, develop, test, and deploy smart contracts.
• Collaborate with frontend and backend developers to integrate smart contracts with web applications.
• Rigorously review code to uphold standards of quality and functional robustness.
• Maintain and improve existing smart contracts based on evolving needs.
• Stay ahead of the curve by updating knowledge on cryptographic and blockchain advancements, ensuring potential security threats are preempted and neutralized.
• Work closely with product managers and partners to crystallize technical needs and system architecture.
• Offer your blockchain and smart contract expertise to a diverse team audience, catering to both technical and non-technical members.
• Stay updated with the latest developments in the Blockchain ecosystem and adapt solutions accordingly.
• Aligns risk and control processes into day to day responsibilities to supervise and mitigate risk; escalates appropriately

• Minimum of 2 years of related experience
• Bachelor's degree in Computer Science, Engineering, or a related STEM field.

• Proven experience with Solidity.
• Strong understanding of blockchain security practices and potential vulnerabilities.
• Proficiency in using tools like Truffle, Hardhat, Foundry, and Remix
• Experience with Solidity security testing tools like Slither, Mythril, Echidna
• Practical experience with scripting languages like Javascript or Typescript
• Ability to craft unit and integration tests ensuring code longevity.
• Familiarity with GitHub and Jira.
• Experience translating requirements into concrete work.
• Demonstrated ability for the best development practices, data structures, algorithms, and methodologies.
• Passion for encouraging a world class organizational culture and a dedication to continuous learning.
• Excellent debugging and fixing skills.
• Strong written and verbal communication skills.
• Self-motivated with the ability to work in a fast-paced, evolving environment.
• Self-starter and complete projects with minimal direction

• Development background in sectors such as banking, finance, or trading, paired with a comprehensive grasp of financial instruments and systems.
• Experience working with financial infrastructure around collateral, lending, and balance sheet management.
• Familiarity with Rust.
• Advanced degree or equivalent experience in a STEM field.
• Hands-on experience with containerization technologies, notably Docker and Kubernetes.
• Experience working with Azure, AWS, and other cloud frameworks.
• Solid understanding of CI/CD principles and associated platforms
• Experience with Hyperledger.
• Prior engagement with DeFi platforms, including but not limited to Aave, Uniswap, and MakerDAO.
• Exposure to Layer2 protocols, off-chain computations, and oracles.
• Experience with The Graph and subgraph development
• Contributions to the open-source blockchain ecosystem.
• Certifications in blockchain or Ethereum development.

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 Role

We're building our Blockchain Engineering presence in our New York City office to spearhead blockchain technology initiatives and establish foundational infrastructure for our expanding product suite. This is a unique opportunity to shape blockchain engineering practices at a market-leading company while working on cutting-edge solutions that power institutional digital asset operations.

As a Blockchain Engineer, you will be instrumental in the research and integration of blockchain technologies into the Fireblocks platform. Your responsibilities will include collaborating closely with foundations and developers to gain a deep understanding of blockchain protocols and on-chain projects. This knowledge will then be applied to implement new features within the Fireblocks platform.

You will be focusing equally on external protocol integration patterns and internal wallet infrastructure. This role serves as a technical bridge between raw on-chain integrated capabilities and the valuable wallet features delivered to customers.

This role will report into our Senior Director, Wallet Technology.

Our team works in a hybrid model with three days in our NYC office.

What You'll Do

• Research and prototype new blockchain features including Layer 2 solutions, cross-chain bridges, and DeFi protocols
• Design and implement secure, scalable blockchain solutions that integrate with Fireblocks' existing infrastructure
• Represent the company's interests and provide structured feedback to foundations on protocol design, tooling, and support.
• Advocate for features or changes that would benefit the wallet infrastructure and its users.
• Establish strong partnerships with blockchain foundations, vendors,,builders, and customers to address challenges, implement solutions, and ensure we are building the right blockchain integrations
• Collaborate with product, engineering, and security teams to define technical requirements for blockchain initiatives
• Mentor and guide other engineers on blockchain technologies and implementations
• Stay current with emerging blockchain technologies, protocols, and industry developments

What You'll Bring

• 4+ years of hands-on blockchain development experience
• 4+ years of backend development experience in modern languages (Go, Python, JavaScript/TypeScript)
• Strong verbal and written communication skills and a collaborative mindset.
• Knowledge of consensus mechanisms, cryptographic primitives, and distributed systems
• Understanding of microservices architecture and API design
• Experience working in cross-functional teams and fast-paced environments
• Strong problem-solving skills and attention to detail
• Previous experience in the blockchain ecosystem

Preferred:

• Experience building blockchain solutions for enterprise or institutional use cases
• Understanding of security best practices for smart contracts and blockchain systems
• Demonstrated ability to apply AI tools for programming with experience in vibe coding
• Excellent technical communication skills for both technical and non-technical stakeholders
• Experience with institutional DeFi, staking protocols, or custody solutions
• Understanding of MPC, multi-signature wallets, or other advanced cryptographic techniques
• Bachelor's degree in Computer Science, Engineering, or related field
• Experience with Docker, Kubernetes, and Helm

Success Criteria & Impact:

• The team is never surprised by a technical change in a core protocol.
• Your research is consistently used as the foundation for architectural decisions.
• You are considered subject matter experts by internal engineering teams.
• You provide the foundational knowledge needed to make informed,long-term strategic decisions, de-risk new integrations, and stay ahead of the technology curve.
• Consistent contribution to Fireblocks system by pushing impactful design and code to production.

For employees hired to work from our NYC HQ, Fireblocks is required by law to include a reasonable estimate of the compensation range for this role. This range is specific to New York City, and takes into consideration a wide range of factors that are reviewed when making a hiring decision, such as years of experience, skills, and other business needs.

It is not typical for a candidate to be hired at or near the top of the pay range and each compensation decision is dependent on each individual case. A reasonable base salary range estimate for this position is $177,000 to $230,000. The base salary is one component of the total compensation package, which for some roles may include a target bonus, a very competitive equity grant, and very generous benefits. While we believe competitive compensation is a critical aspect of you deciding to join us, we do hope you also spend time considering why our mission and culture are right for you. We are creating something transformational here, and we hope you are as excited about the future as we are.

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.

About the job Blockchain Engineer

Responsibilities

Lead the research, design, implementation, deployment, and monitoring of the blockchain client/infrastructure.

Conduct blockchain technology research and make partner and technology recommendations.

Own the internal and external technical communication of the blockchain technology.

Provide first-line engineering support for both internal and external infrastructure partner integration.

Establish and iterate on best practices for maintaining a secure and modular infrastructure.

Qualifications

Strong Passion for Blockchain: Demonstrate a deep passion and robust interest in blockchain and cryptocurrency technologies.

Advanced Blockchain Expertise: Possess extensive knowledge and hands-on experience in the blockchain ecosystem, including but not limited to Layer 1 and Layer 2 technologies, smart contract development and deployment, blockchain bridges, oracles, indexers, decentralized finance (DeFi), and non-fungible tokens (NFTs).

Educational Background: Hold a Bachelor's or Master's degree in Computer Science, Engineering, or a related technical field.

Experienced in System Development: Bring 3-5 years of experience in low-level system development and managing scalable infrastructure operations.

Blockchain Development Skills: Have at least 2 years dedicated to blockchain development, with a strong understanding of peer-to-peer networking, consensus algorithms, virtual machines, and storage subsystems. Proficiency in Golang and/or Rust is highly desirable.

Communication and Problem-Solving: Exhibit exceptional communication skills, an eagerness to learn, and a proactive approach to identifying and solving problems effectively.

• Design, develop, and deploy smart contracts and dApps.
• Implement secure and efficient blockchain protocols.
• Write high-quality, well-tested code in languages like Solidity, Go, or Rust.
• Collaborate with cross-functional teams on blockchain projects.
• Conduct code reviews and ensure adherence to security best practices.
• Optimize blockchain network performance and scalability.
• Stay updated with emerging blockchain technologies and trends.
• Contribute to the technical architecture and roadmap.

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• 5+ years of software development experience, with at least 3 years focused on blockchain technology.
• Proficiency in smart contract development (e.g., Solidity) and blockchain platforms (e.g., Ethereum, BSC).
• Strong understanding of cryptography, distributed systems, and consensus algorithms.
• Experience with APIs, databases, and cloud infrastructure.
• Excellent problem-solving and debugging skills.
• Strong communication and teamwork abilities.
• Familiarity with security principles in blockchain development.