Quant Developer

Job Description:The RoleWe 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 ResponsibilitiesStrategy Research & ImplementationResearch 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 profilesDesign and execute robust backtests to validate strategy performanceSystem AdaptationWork with existing research frameworks to integrate DeFi-specific functionalityExtend and optimize components for on-chain analysis, risk management, and simulated connectivity to decentralized venuesImplement enhancements in Rust and Python for performance, reliability, and securityMonitoring & TroubleshootingDevelop metrics and dashboards to monitor strategy performance and market conditionsTroubleshoot unexpected behaviors and refine strategies based on real-time feedbackContinuously iterate on models and assumptions to adapt to evolving DeFi ecosystemsCross-Team CollaborationWork closely with the Head of Quant Strategies to align strategy development with business goalsPresent research findings and performance metrics to team and internal stakeholdersContribute to thought leadership and internal knowledge sharing on DeFi trends and innovationsThe Expertise and Skills You BringTechnical ExpertiseStrong proficiency in a systems language such as C++/Rust etc.Advanced skills in Python, relational databases and SQL/SnowflakeExperience working with blockchain data (e.g., The Graph, Dune, custom node queries) and trading platformsStrong understanding of portfolio construction, risk modeling, and statistical analysisDeFi & Market KnowledgeDeep experience with DeFi protocols, protocol mechanics, and smart contractsUnderstanding of liquidity provisioning, staking, lending, and governance mechanismsExperience with systematic trading or investment strategies in digital assetsAnalytical & Research SkillsAbility to design statistically sound experiments and backtestsSkilled at extracting signal from noisy, imperfect datasetsStructured approach to hypothesis generation, model building, and validationProfessional ExperienceTypically, 5+ years of experience in quantitative development/researchPrefer 2+ years of experience in digital assets and/or DeFiAdvanced degree (MSc or PhD) in a quantitative discipline (e.g., Mathematics, Computer Science, Physics, Statistics)Experience working in a collaborative, cross-functional environmentPreferred QualificationsPrior experience adapting or extending trading systemsFamiliarity with MEV, gas optimization, and Layer 2 scaling solutionsExperience with trading infrastructure and execution in decentralized marketsDemonstrated initiative in research, strategy development, and process improvementThe TeamFidelity 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.Certifications:Category:Information Technology