Hire the top 3% of freelance
Machine Learning engineers.

Toptal is a marketplace for top Machine Learning engineers. Top companies and start-ups choose Toptal Machine Learning freelancers for their mission critical software projects.
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Hire Machine Learning engineers

João Filgueiras, Portugal

Member since February 22, 2014
João is an accomplished researcher and prototype developer with a special talent for breaking down large problems into solvable pieces. His background in R&D gives him the edge in implementing efficient, effective, and sophisticated yet clean solutions. Click to continue

Vlad Gutnyk, United States

Member since March 20, 2013
Vlad is very good at finding efficient solutions to software problems. Having experience with many different web technologies, he excels at choosing the best way to turn ideas into well-designed applications. Click to continue

Daniel Michulke, Luxembourg

Member since June 27, 2014
An accomplished developer, entrepreneur, and researcher with a background in mathematics and science, Daniel develops large and flexible applications with the broad vision of an architect and the risk-taking of an entrepreneur. Click to continue

Mahmud Ridwan, Bangladesh

Member since December 31, 2013
Mahmud is a software developer with a knack for efficiency, scalability, and stable solutions. With years of experience working with a wide range of technologies, he is still interested in exploring, encountering, and solving new and interesting programming problems. Click to continue

Carlos Guerreiro, Finland

Member since March 9, 2013
Carlos is an exceptional data generalist who brings a vast amount of experience in the design, implementation, and validation of data-intensive systems to all of his projects, along with deep expertise in machine learning and real-time stream processing. Click to continue

Ivan Makeev, United Kingdom

Member since October 28, 2013
Ivan is an algorithm developer and research scientist (PhD) with a strong mathematical and algorithmic background. He is interested in complex projects related to various aspects of computer science, especially in the fields of computer vision, video analytics, and machine learning. Click to continue

Hermina Petric Maretić, Croatia

Member since August 4, 2014
Hermina is a developer with proven skills in data mining, machine learning, and mathematical optimization. When building a project, she gives special attention to algorithm efficiency, putting an emphasis on creating quick and optimized software. Click to continue

Andre Dieb Martins, Brazil

Member since September 26, 2012
Andre has a wealth of engineering experience with an extensive software background and a university background in electrical engineering. He excels at swiftly learning and adapting to new technologies and work environments. He specializes in Python and Django. He is fluent in English and Portuguese. Click to continue

Jano Suchal, Slovakia

Member since January 29, 2014
Jano is a full stack developer with strong database skills and a passion for clean code. He handles performance tuning for back-ends and enhances usability in front-ends. He has a serious background in machine learning, recommendation systems, and search. Click to continue

Rafael Carrascosa, Argentina

Member since May 29, 2014
A disciplined developer with a scientific background, Rafael is a true specialist in machine learning and natural language processing. He has excellent communication skills and loves to work in teams. Rafael is always proactively thinking of ways to add more value to his clients. Click to continue
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Co-Founder & CTO @ maxMantra
“It has been wonderful to work with Fabian for the past two years. He is an expert in JavaScript development and has built our embeddable widget and video player. He is a quick study and is able to learn how to integrate new technologies, which is so critical for a startup. He even took the extra effort to teach others on the team. He is super responsive and often went above and beyond to help us meet deadlines (including working on weekends). Thank you Fabian. Thank you Toptal for making it so easy to find and work with amazing talent.”
Natasha Mohanty
“I can't say enough about how happy and confident I am in working with Enrique. He brings an enthusiasm to his profession that is very refreshing, constantly surprising us with his depth of knowledge and his capability to not only complete the task, but to surpass our expectations. He presents us with solutions that we would not have thought about ourselves, and sees the problem better than we can explain it.”
Chad Berryman
Senior Technical Lead @ Zoomedia
“We had a great experience with Toptal. They paired us with the perfect developer for our application and made the process very easy. It was also easy to extend beyond the initial time frame, and we were able to keep the same contractor devoted to the project. We definitely recommend Toptal for finding high quality talent quickly and seamlessly.”
Ryan Morrissey
CTO @ Applied Business Technologies, LLC
“While looking for a high-level Python/Django developer, I found Toptal via a simple Google search, and that was a stroke of luck for our company. We needed a expert engineer who could start on our project immediately as we had a tight deadline. We were introduced to Simanas and immediately knew he was a great choice who had already been vetted... and he exceeded our expectations with his work. Not having to interview and chase down an expert developer was an excellent time-saver and made everyone feel more comfortable with our choice to switch platforms to utilize a more robust language. Toptal made the process easy and convenient, and we are extremely happy with the results. Toptal is now the first place we look for expert-level help.”
Derek Minor
Senior VP of Web Development @ NetWorldMediaGroup
“We recently launched our app with the help of Toptal and Nikola, an iOS developer. I was immediately impressed with the constant communication, detail, and level of talent that Nikola brought to the table. More importantly, when the project was underway, Nikola proactively provided creative workarounds for unforeseen hurdles and challenges. I couldn't be happier with our engagement and would highly recommend Nikola and Toptal.”
Chip O'Toole
Founder @ Humans Helping Robots LLC
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Barbara Karpf
President @ DecoratorsBest
“Sergio was an awesome developer to work with. Top notch, responsive, and got the work done efficiently.”
Dennis Baldwin
Chief Technologist and Co-Founder @ PriceBlink
“Working with Marcin is a joy, I can't find a better word. He is competent, professional, flexible, and extremely quick to understand what is required -- and to implement it -- even if the source code that's given to him is, shall we say, less than optimally elegant and clear. Oh and he has the same sense of humour as me. ;)”
André Fischer
CTO @ App Promotions
“Dario was recently assigned to our company in order to help with PHP and JW Video player refinements. He listens extremely well and offers common sense suggestions that save both time and money. He speeds up the process by asking great questions, and he just delivered our first project on time. His redesigned player offers a very pleasing appearance and delivers functions that are both elegant and intuitive.”
Dennis B. Jacobs
President @ College TV Ticket
“Our experience with Toptal was very good. We had an open ended development project when we got started and the programmer from Toptal was very helpful, working with us on everything from the top level outline all the way down to development and delivery of functioning code." ”
Michael Milton
VP of Engineering @ SLANTRANGE
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