DeFi Quant Developer

Fidelity • Boston, MA

1d

About The Position

As a quant developer, you will research protocols, primitives, and on-chain strategies using scientific modeling, machine learning, and other quantitative methods. You will design, develop, and implement quantitative research infrastructure, apply an engineering mindset to implement and test research, and deliver projects that support competitiveness in the DeFi marketplace.

You will research financial data and emerging DeFi infrastructure to identify patterns, trends, and yield-generating opportunities; develop and maintain quantitative models; and collaborate with researchers, technologists, analysts, and other stakeholders to integrate DeFi strategies into the broader research framework.

The team builds Fidelity Digital Assets’ decentralized finance capabilities and expands its technical blockchain and DeFi ecosystem expertise. Its work informs research and new product development. Fidelity Digital Assets provides institutional digital-asset services, including custody, trading, and support, as well as retail crypto offerings.

Requirements

• Strong Python programming skills and experience with libraries such as Pandas, NumPy, and Scikit-Learn.
• Working knowledge of machine-learning principles, classification models, time-series regression, and stochastic calculus.
• Understanding of relational database concepts and experience writing SQL queries.
• Working knowledge of Git.
• Strong written and verbal communication skills.
• Ability to work independently while collaborating across teams.
• 3–5 years of experience in digital assets, DeFi, fintech, crypto-native organizations or research firms, or a related field.
• BSc, MSc, or PhD degree in Mathematics, Physics, Computer Science, or another quantitative field.
• Existing knowledge of public blockchains and DeFi protocols such as DEXs, lending, or derivatives platforms, and a desire to become a subject-matter expert.

Nice To Haves

• Background or experience in algorithmic trading.
• Familiarity with programming in Rust.

Responsibilities

• Research financial data and emerging DeFi infrastructure to identify exploitable patterns, trends, and yield-generating opportunities.
• Use quantitative techniques, machine learning, and related data science methods to process large financial datasets.
• Collaborate with quant researchers and DeFi analysts to turn research findings into actionable insights.
• Design, implement, and maintain quantitative models for various use cases.
• Research, evaluate, and explore risk-management and optimization algorithms.
• Develop software in Python and other programming languages to process, analyze, and predict market behaviors.
• Retrain and backtest models based on market performance and new data.
• Work with quantitative researchers, technologists, and other stakeholders to integrate DeFi strategies into the broader research framework.
• Participate in meetings, code sharing, and cross-functional collaboration to align research with business objectives.
• Research protocols, primitives, and on-chain strategies, and develop and implement quantitative research infrastructure.

Benefits

• Comprehensive health care coverage and emotional well-being support.
• Market-leading retirement benefits.
• Generous paid time off and parental leave.
• Charitable-giving employee match program.
• Educational assistance, including student loan repayment, tuition reimbursement, and learning resources.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level