At a Glance
- Tasks: Research and develop innovative strategies in DeFi markets using cutting-edge technology.
- Company: Join Fidelity Digital Assets, a leader in digital finance innovation.
- Benefits: Competitive salary, remote work options, and opportunities for professional growth.
- Other info: Collaborative team environment with a focus on continuous learning and development.
- Why this job: Make a real impact in the evolving world of decentralised finance.
- Qualifications: Strong programming skills in C++/Rust and Python; experience in DeFi is a plus.
The predicted salary is between 70000 - 90000 £ per year.
We are seeking a Quantitative Developer with strong engineering skills to join our London-based team. This role is ideal for a technically strong developer who combines deep experience in DeFi markets and on-chain analytics with the ability to adapt and extend backtesting systems for DeFi as well as ideate on scalable strategies.
You will work closely with quant researchers and analysts to build research infrastructure, design, test, and deploy strategies that capitalize on opportunities across decentralized markets.
Key Responsibilities- Strategy Research & Implementation
- Research and develop yield-generating strategies across DeFi protocols (staking, LPs, lending, re-staking, etc.)
- Extract, clean, and analyze on-chain data to identify inefficiencies, arbitrage opportunities, and risk-adjusted return profiles
- Design and execute robust backtests to validate strategy performance
- System Adaptation
- Work with existing research frameworks to integrate DeFi-specific functionality
- Extend and optimize components for on-chain analysis, risk management, and simulated connectivity to decentralized venues
- Implement enhancements in Rust and Python for performance, reliability, and security
- Monitoring & Troubleshooting
- Develop metrics and dashboards to monitor strategy performance and market conditions
- Troubleshoot unexpected behaviors and refine strategies based on real-time feedback
- Continuously iterate on models and assumptions to adapt to evolving DeFi ecosystems
- Cross-Team Collaboration
- Work closely with the Head of Quant Strategies to align strategy development with business goals
- Present research findings and performance metrics to team and internal stakeholders
- Contribute to thought leadership and internal knowledge sharing on DeFi trends and innovations
- Technical Expertise
- Strong proficiency in a systems language such as C++/Rust etc.
- Advanced skills in Python, relational databases and SQL/Snowflake
- Experience working with blockchain data (e.g., The Graph, Dune, custom node queries) and trading platforms
- Strong understanding of portfolio construction, risk modeling, and statistical analysis
- DeFi & Market Knowledge
- Deep experience with DeFi protocols, protocol mechanics, and smart contracts
- Understanding of liquidity provisioning, staking, lending, and governance mechanisms
- Experience with systematic trading or investment strategies in digital assets
- Analytical & Research Skills
- Ability to design statistically sound experiments and backtests
- Skilled at extracting signal from noisy, imperfect datasets
- Structured approach to hypothesis generation, model building, and validation
- Professional Experience
- Typically, 5+ years of experience in quantitative development/research
- Prefer 2+ years of experience in digital assets and/or DeFi
- Advanced degree (MSc or PhD) in a quantitative discipline (e.g., Mathematics, Computer Science, Physics, Statistics)
- Experience working in a collaborative, cross-functional environment
- Preferred Qualifications
- Prior experience adapting or extending trading systems
- Familiarity with MEV, gas optimization, and Layer 2 scaling solutions
- Experience with trading infrastructure and execution in decentralized markets
- Demonstrated initiative in research, strategy development, and process improvement
Fidelity Digital Assets is dedicated to building products and services that help institutions adopt digital assets and innovate within the increasingly digital world of finance. Fidelity Investments began researching blockchain technology and digital assets solutions in 2014, and years of research and development have provided us with the deep expertise necessary to build the future of finance.
Come join the Quantitative Strategies team within Fidelity Digital Assets to help grow our business initiatives within DeFi and contribute to our research and product capabilities using your insights.
Quant Developer in London employer: Soteria Reinsurance Ltd.
Fidelity Digital Assets is an exceptional employer, offering a dynamic work environment in London where innovation meets collaboration. With a strong focus on employee growth, we provide opportunities for professional development and the chance to work alongside industry experts in the rapidly evolving DeFi space. Our culture promotes creativity and knowledge sharing, ensuring that every team member can contribute meaningfully to our mission of transforming the future of finance.
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