Quantitative Research Engineer positions offered by Citadel Americas Services LLC (New York, New York). Collaborate with research teams to design and implement quantitative tools and strategies for trading innovations across asset classes. Develop and enhance financial risk models, alpha models, transaction cost models and other numerical algorithms. Design and optimize tools for strategy back-testing. Design and develop scalable data platforms for processing, storage and retrieval of large data sets. Perform large-scale data analysis to identify features used in the investment research process. Provide day-to-day support for applications and the underlying infrastructure.Requires a Masters degree or foreign equivalent degree in Computer Science, Statistics, Artificial Intelligence, Engineering, Mathematics, Physics or a related field. Must have demonstrated proficiency in the following: o Programming in C++, Python, or Ro Program or tool development for trading strategies and analysiso Algorithmso Risk, statistical and data analysiso Advanced statistical and mathematical modelling techniques o Model, Regression, and Machine Learning/Deep Learning based analysis; and o Big Data Experience may be, but need not be, acquired concurrently.*We are offering a salary range of $280,000 - $320,000. Please submit resume to citadelrecruitment@citadel.com. Reference Job ID: 10147493.