C/C++, Python, and Matlab; Big data/NoSQL/database technologies; Software engineering: software design, algorithm implementation, and software analysis, testing, and optimization; Machine learning: supervised and unsupervised learning, clustering, and classification; Applied mathematics: differential equations, linear algebra, optimization, statistics, and random processes; Engineering: controls, estimation theory, and digital signal processing. This third-party service provider provides risk-intelligence services that may include analysis of sanctions and watchlists, adverse media, public-record information, and other lawful open-source or commercial data sources.