Hire the top 3% of freelance data engineers.

Toptal is a marketplace for top data engineers. Top companies and start-ups choose Toptal Data Engineer freelancers for their mission-critical software projects.
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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

Charles Bordet, France

Member since November 29, 2017
Charles is an experienced data scientist with a strong background in programming, machine learning, and statistics. He has helped a variety of clients in various industries, such as academic researchers, web startups, and Fortune 500 companies. His work spans from ex... Click to continue

Radek Ostrowski, Australia

Member since July 25, 2014
Radek is a certified Toptal Blockchain Engineer particularly interested in Ethereum and smart contracts. In the fiat world, he is experienced in big data/machine learning projects. He is a triple winner in two different international IBM Apache Spark competitions, co... Click to continue

Pavel Vydra, Czech Republic

Member since August 31, 2016
Pavel has over a decade of experience in data science and product development, especially focusing on product, project, and process management. With a strong data background, his focus has been on finding the right balance between the key value-add features and cost-... Click to continue

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

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

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

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