- Analyzing and optimizing real-time bidding strategies and online auction mechanics;
- Developing new or improving existing models of event predictions;
- New feature engineering for multiple machine learning models:
- User embeddings and clustering; fraud detection, etc.
- Cross-device user identification, cookieless mechanisms development;
- Mining different data sources;
- Supporting existing codebase for data integration and production support for our core models.
- India, Netherlands, UK: we can hire as FTE
- Other countries: we can hire as long-term contractor
- Advanced knowledge of Python using standard DS packages (numpy/pandas/scikit, etc.); Being able to optimize and speed-up code.
- 3+ years of RTB Auction or similar online technologies.
- Algorithms and Data Structures (e.g., sorting, search tree, binary heap, trie; time & mem complexities of algorithms)
- Probability and Statistics (e.g., hypothesis testing; Markov process and its stationary distributions, stochastic matrix and its properties; Bayesian inference)
- ML & DS (e.g., dimensionality reduction, geometry of PCA / SVD and of L1 / L2 regularisation, Decision trees and their ensembles, collaborative filtering, Thompson sampling / MCMC, Neural Networks, etc.)
Skills Required
- At least 5 years of experience in machine learning or data science
- At least 3 years of experience with real-time bidding auctions or similar online technologies
- Advanced Python skills using standard data science packages such as NumPy, pandas, and scikit-learn
- Ability to optimize and speed up code
- Strong knowledge of algorithms and data structures, including computational complexity
- Strong knowledge of probability and statistics, including hypothesis testing, Markov processes, and Bayesian inference
- Strong machine learning and data science knowledge, including dimensionality reduction, regularization, decision trees, collaborative filtering, sampling, and neural networks
- Knowledge of Python, algorithms, optimization, NLP, data mining, statistical analysis, neural networks, generalized linear regression, multiclass classification, Java, and R
What We Do
Our Company: WebMD is a leading provider of health information services to consumers, physicians, healthcare professionals, employers and health plans. Our Business: WebMD is the leading provider of health information and services to consumers and healthcare professionals. The online healthcare information, decision-support applications and communications services that we provide: help consumers take an active role in managing their health by providing objective healthcare information and lifestyle information. make it easier for physicians and healthcare professionals to access clinical reference sources, stay abreast of the latest clinical information, learn about new treatment options, earn continuing medical education credits and communicate with peers. enable employers and health plans to provide their employees and plan members with access to personalized heath and benefit information and decision support technology that helps them make informed benefit, provider and treatment choices.





