Principal Digital Assets Engineer

The Role

As a Principal Crypto Engineer at Fidelity Labs, you will lead the development of innovative, customer-facing crypto products for a greenfield project. You will architect and build secure, scalable, and user-centric digital asset solutions from the ground up, driving the crypto vision for Fidelity Labs’ crypto initiatives. Collaborating with product managers, designers, and cross-functional teams, you will design and implement cutting-edge blockchain-based systems focused on FinTech use cases, ensuring robust security, performance, and seamless user experiences. Additionally, you will mentor engineers, contribute to open-source communities, and represent Fidelity Labs’ crypto startup as a thought leader in the crypto space.

The Expertise and Skills You Bring

• 2+ years of hands-on experience in digital asset development, including cryptocurrencies, blockchain protocols, and decentralized applications (dApps)
• 8+ years of proven track record of architecting and building secure, scalable crypto systems, including wallets, smart contracts, or trading platforms
• Deep expertise in blockchain technologies (e.g., Ethereum, Bitcoin, or other layer-1/layer-2 protocols) and cryptographic principles (e.g., public-key cryptography, zero-knowledge proofs)
• Significant contributions to open-source crypto projects, with publicly verifiable work on platforms like GitHub
• Strong programming skills in languages such as TypeScript, Solidity, Rust, Go, or Python, with experience in low-level systems programming for blockchain nodes or protocols
• Hands-on experience with customer-facing crypto products, such as wallets, exchanges, or DeFi platforms, and a focus on usability and security
• Proficiency in designing and implementing secure APIs, smart contracts, and system integrations for blockchain-based applications
• Experience with agile development, rapid prototyping, and iterative feature validation in a fast-paced, innovative environment
• Strong knowledge of decentralized finance (DeFi) and consensus mechanisms (e.g., PoW, PoS, DPoS)
• Demonstrated ability to mentor and guide engineering teams, fostering technical excellence and innovation
• Excellent communication skills, with the ability to articulate complex cryptographic and blockchain concepts to technical and non-technical stakeholders
• Bachelor’s degree in Computer Science, Cryptography, Engineering, or a related field (preferred but not required)
• Passion for staying at the forefront of crypto innovation, with a proactive approach to exploring emerging blockchain technologies and trends

The Team

We are Fidelity Labs, Fidelity Investments’ in-house software incubator and digital studio. Founded in 2005, Fidelity Labs has played a critical role in driving growth and innovation for the firm. The Fidelity Labs organization has a portfolio of new businesses and is constantly prototyping concepts for Fidelity’s next new ventures.

Fidelity Labs is a dynamic workplace that combines the best parts of startup life—building from scratch, adapting quickly, and moon-shot ambition—with the scale and stability of an industry leader. Learn more at labs.fidelity.com.

Placement in the range will vary based on job responsibilities and scope, geographic location, candidate’s relevant experience, and other factors.

Base salary is only part of the total compensation package. Depending on the position and eligibility requirements, the offer package may also include bonus or other variable compensation.   

We offer a wide range of benefits to meet your evolving needs and help you live your best life at work and at home.  These benefits include comprehensive health care coverage and emotional well-being support, market-leading retirement, generous paid time off and parental leave, charitable giving employee match program, and educational assistance including student loan repayment, tuition reimbursement, and learning resources to develop your career.  Note, the application window closes when the position is filled or unposted.

Please be advised that Fidelity’s business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.

Most roles at Fidelity are Hybrid, requiring associates to work onsite every other week (all business days, M-F) in a Fidelity office. This does not apply to Remote or fully Onsite roles.