Data Scientist

Smart Contract Engineer/Data Science Associate | Boston, MA | Hybrid | $140,000 - $285,000

We're working with Fidelity Investments on this exciting opportunity.

This is a unique opportunity to join Fidelity Digital Asset Management, where you'll be instrumental in architecting and deploying cutting-edge blockchain solutions and smart contracts. You'll work with advanced technologies across EVM, Solana, and Cosmos SDK platforms, contributing to quantitative models that support research, trading, risk, and operations.

Key Responsibilities:

• Architect and oversee the development of blockchain-based systems and smart contracts across EVM, Solana, and Cosmos SDK platforms.

• Lead technical design and implementation of crypto infrastructure, including secure deployment pipelines, testing frameworks, and audit processes.

• Collaborate with quant researchers and data scientists to integrate blockchain data into predictive models, optimization engines, and trading algorithms.

• Conduct deep technical reviews and audits of smart contracts, ensuring security, scalability, and compliance with DeFi standards.

• Evaluate and implement emerging technologies, protocols, and tooling to enhance Fidelity's digital asset capabilities.

• Serve as a technical liaison across engineering, trading, and risk teams to ensure seamless integration of blockchain systems into core workflows.

What You'll Need:

• 4+ years of hands-on experience in blockchain engineering, smart contract development, or crypto infrastructure, with a strong track record of technical delivery.

• Deep understanding of EVM/SVM architecture, token standards (ERC-20, ERC-721, SPL), and DeFi primitives.

• Proficiency in multiple programming languages including Python, Solidity, and JavaScript/TypeScript.

• Experience with smart contract frameworks and tools such as Hardhat, Truffle, OpenZeppelin, Mythril, and Ganache.

• Strong background in quantitative modeling, data science, or financial engineering, with experience applying models to trading or risk systems.

• Proven ability to lead complex technical projects and mentor senior engineers in a collaborative, high-performance environment.

What's On Offer:

• Comprehensive health care coverage and emotional well-being support.

• Market-leading retirement, generous paid time off, and parental leave.

• Charitable giving employee match program.

• Educational assistance including student loan repayment, tuition reimbursement, and learning resources to develop your career.

Apply via Haystack today