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Head of Quantitative Trading

Pacaya HR Experts · Sofia, Bulgaria

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We are looking for an exceptional Head of Quantitative Trading to build and lead the quantitative trading function of an international B2B technology company operating in the sportsbook industry.This is a senior leadership role with a highly hands-on quantitative focus. You will own the development of advanced pricing and risk models, build the quant team, and work closely with Trading and R&D leadership to drive the transition toward increasingly automated, model-driven trading.What You’ll Own:Build and lead the quantitative trading team across pre-match and in-play pricing, risk and liability modelling, and trading automation.Develop and own advanced pricing models supporting key sportsbook capabilities, including bet builder / same-game pricing, cash-out valuation, personalisation, and market availability.Define the trading automation roadmap together with Trading and R&D leadership, determining which markets, sports, and processes should be automated first.Establish clear validation criteria before models progress into live production.Own model quality across key metrics including margin, hold, price accuracy, and market availability.Work closely with R&D trading teams to productionise quantitative models and develop the supporting data infrastructure.Drive the evolution of trading operations toward a model-driven environment, with human traders increasingly focused on supervision and exception management.Establish rigorous measurement and monitoring processes for models running in production.What Success Looks Like:During the first year, you will be expected to:Bring autonomous in-play football pricing into production for an initial set of markets.Implement automated risk and liability limits with appropriate human oversight and auditability.Build a clear, evidence-based automation roadmap across additional sports and markets.Deliver highly competitive bet builder and cash-out pricing.Improve pricing quality and market availability.Help redesign the trading operating model around increased automation.What We’re Looking For:Proven experience building or running automated pricing and risk models at scale.Experience in sportsbook quantitative trading or high-frequency trading is strongly preferred.Deep quantitative background in areas such as statistics, machine learning, and stochastic modelling.Strong hands-on modelling capabilities.Experience taking pricing models from research through to live production environments.Strong understanding of model validation, monitoring, and performance measurement.Experience working at the intersection of quantitative modelling, engineering, and trading operations.An AI-first approach to modelling, research, and development.Ability to communicate and collaborate effectively with both traders and engineers.Leadership capabilities combined with a willingness to remain deeply involved in the quantitative work.