Trader (Citadel Americas Services LLC Greenwich, CT); Multiple Position Available. Monitor and analyze incoming market information, economic news & trading activity to manage portfolio risk, identify investment opportunities & make trading decisions. Full Time. Requires a Master's degree (or foreign equivalent) in Finance, Economics, Applied Math, Engineering, Computer Science, Physics or a related quantitative field plus 2 years experience in job offered or working in data-driven quantitative trading or investment environment. In lieu of Master's & 2 years experience, will accept Bachelor's Degree in stated fields plus 5 years experience in data-driven quant trading or investment environment. Requires 2 years experience in: Financial and statistical modeling including time-series analysis; Working in financial markets with derivative pricing; Functionalities in MS Excel including VBA; Programming and scripting languages including Python, R, C++ or similar; Statistical tools including R, Matlab or similar; and, analyzing large data sets. Experience may be gained concurrently.