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Katia Hayati, United States

Member since October 24, 2016

Katia has worked for twelve years as an engineer, hands-on engineering manager, and consultant. She has worked at companies of all sizes, from tiny two-person startups to major enterprises including Groupon and Microsoft. She specializes in data processing, data-rela... Click to continue

Data Analyst Perl SQL Data Science Machine Learning

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Aljosa Bilic, Switzerland

Member since May 30, 2016

Aljosa is a data scientist and developer who has more than eight years of experience building statistical/predictive machine learning models, analyzing noisy data sets, and designing and developing decision support tools and services. He joined Toptal because freelan... Click to continue

Data Analyst Python MATLAB Flask Machine Learning Algorithmic Trading Data Science Pandas

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Oliver Holloway, United Kingdom

Member since March 6, 2016

Oliver is a versatile data scientist and software engineer combining 8 years of professional experience and a postgraduate mathematics degree from Oxford. Career assignments have ranged from building machine learning solutions for startups to leading project teams an... Click to continue

Data Analyst Python AngularJS Pandas

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Benjamin Wilson, Ph.D., Germany

Member since August 27, 2016

Ben is a Ph.D. mathematician and computer scientist with exceptional practical skills and extensive experience with machine learning systems. He has worked extensively with large clients in real-time bidding, recommender systems, knowledge management, and NLP (from r... Click to continue

Data Analyst Python Pandas Sklearn Data Science Machine Learning PostgreSQL

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Darin Erat Sleiter, Brazil

Member since September 13, 2016

Darin is a data scientist and engineer with a PhD in physics from Stanford. He's passionate about data and machine learning and has worked on data science projects across numerous industries and applications. Darin's co-founded an AI company and led a team of data sc... Click to continue

Data Analyst Python C#SQL Pandas Sklearn Git Linux Machine Learning Data Science Deep Learning Artificial Intelligence (AI)

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Eva Bojorges Rodriguez, Mexico

Member since October 16, 2014

Eva is a skilled back-end developer and machine learning engineer with experience in scalability issues, system administration, and more. She has a flair for well-structured, readable, and maintainable applications and excellent knowledge of Python, Ruby, and Go. She... Click to continue

Data Analyst Python Flask Google App Engine Machine Learning REST APIs Data Science

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Pedro Alves Nogueira, Portugal

Member since January 13, 2015

Pedro is a senior researcher and prototype developer with a PhD in AI, human-computer interaction, and affective computing. His background in academic and startup environments give him an edge in implementing state-of-the-art, elegant, and efficient custom-built solu... Click to continue

Data Analyst Python R OpenCV Machine Learning Data Science Project Management

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Christopher Karvetski, United States

Member since June 22, 2016

Dr. Karvetski has ten years of experience as a data and decision scientist. He has worked across academia and industry in a variety of team and client settings, and has been recognized as an excellent communicator. He loves working with teams to conceive and deploy n... Click to continue

Data Analyst R SQL SAS iOS Oracle Data Science

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Renee Ahel, Croatia

Member since June 24, 2018

Renee is a data scientist with over ten years of experience, and five years as a full-stack software engineer. For over ten years, he has worked in international environments, with English or German as a working language. This includes 2.5 years working remotely for ... Click to continue

Data Analyst SQL R Machine Learning Data Science Oracle SQL Databases Company Databases