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Hire Data Scientists

Richard Rozsa, Netherlands

Member since June 12, 2013
Richard Rozsa offers a vision of data as a self formatting entity. For more than 30 years, he's delivered top quality technical architecture, programming, testing and solutions for complex problems--on-time and within budget. He's extremely flexible and able to integrate as a standalone freelancer or within teams. Click to continue

Carl Dunham, United States

Member since January 20, 2014
Carl has a lifelong passion for building software, systems, and teams. He caught the bug in college, began working with a startup the summer before graduation, and hasn't stopped since. He loves learning new languages and technologies, and most of all, he like using them to build large, interesting things. Click to continue

Yaakov Belch, Israel

Member since May 26, 2014
Yaakov is a top engineer with proven ability to develop efficient, scalable, and fault-tolerant full-stack solutions for complex problems. He has extensive experience and skills with all levels of software and architecture. He has a PhD from Cambridge University. Yaakov is developing the Yomo library (yomojs.com) that combines Redux and Mobx on both client and server. Click to continue

Mojmir Vinkler, Czech Republic

Member since April 17, 2014
Mojmir is a full-stack data scientist with strong development skills, allowing him to handle model design, data collection, and final implementation of software. He has a strong background in statistics, machine learning, business, computer science, and predictive modeling of big data sets. Click to continue

Benjamin Hopfer, Malta

Member since November 22, 2013
Benjamin is an algorithmic problem solver with a strong background in C# and C++. His university education emphasized Computer Graphics and Computer Vision. He is looking to strengthen his presence in other areas, especially ASP.NET and Android development. Click to continue

Peter James Row, Australia

Member since May 21, 2014
Peter has 5 years of Python experience in a scientific research environment. He has also been coding for iOS for 1 year, and has made two personal apps on the App Store: a physics-based game using Cocos2D (the predecessor to SpriteKit) and an educational app. Click to continue

George-Bogdan Ivanov, Romania

Member since December 15, 2013
George-Bogdan is a software engineer and aspiring entrepreneur with a passion for artificial intelligence, natural language processing, and related areas like machine learning and data mining. He loves developing adaptive and smart web applications making use of intelligent algorithms. Click to continue

Victor Tyutyunov, Ukraine

Member since February 2, 2014
Victor is a successful lead engineer with extensive experience in the development of high-loaded distributed systems, data processing, and data analysis. Click to continue
Data Scientists
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Testimonials
“With the pressure on and millions watching the Cleveland Cavaliers during the NBA Playoffs, Toptal delivered the talent and expertise needed to launch a brand new fan engagement platform.”
Conor Kenney
Director of Professional Services @ Cleveland Cavaliers
“I'm incredibly impressed with the caliber of the Toptal developers I have worked with - they have proven themselves to be both dedicated and highly talented. We will most definitely continue to work with Toptal. ”
Savannah de Savary
Founder @ Industry Hub
“Toptal makes finding a candidate extremely easy and gives you peace-of-mind that they have the skills to deliver. I would definitely recommend their services to anyone looking for highly-skilled developers.”
Michael Gluckman
Data Manager @ Mxit
“One of our biggest and most time consuming problems is finding qualified staff. We need to find the correct platform to advertise on, create a proper ad, filter through tons of useless applications to try and find the small gems, interview and test the capabilities of applicants to see if they fit our profile and finally take a risk by hiring. This was the old way of doing things! The new way: describe the job position to our Toptal account manager, interview a few qualified applicants, hire with a risk-free trial! Much faster, a lot easier and with incredible end results.”
Catalin S. Balaci
Owner @ EvoBits Information Technology SRL
“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
“Toptal makes finding qualified engineers a breeze. We needed an experience ASP.NET MVC architect to guide the development of our start-up app, and Toptal had three great candidates for us in less than a week. After making our selection, the engineer was online immediately and hit the ground running. It was so much faster and easier than having to discover and vet candidates ourselves.”
Jeff Kelly
Co-Founder @ Concerted Solutions
“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
“Toptal has helped my business tremendously by finding, vetting, and recruiting the talent I need, at the right time. I’d definitely recommend it to others.”
Xavier Xicay
CEO & Creative Director @ Tuatara Corp
“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
“Toptal is amazing! Sourcing and interviewing candidates has always been incredibly cumbersome and difficult - and usually takes weeks or months to find the right people. With Toptal, we had 5 candidates in 2 days that were all perfect for the job. They made the scheduling of interviews easy and straightforward and we were working with a top-level bad-ass developer within 2 weeks. I love you, Toptal.”
Ian Fosbery
CTO @ NMRKT
“Robert was such a breath of fresh air! I’m used to working with developers who don’t speak good English, don’t understand my needs, and are bad communicators in general. But Robert was not only an EXCELLENT communicator, he knew exactly what I was looking for and made it better than I thought possible. Now I have a website that works better than I thought it could for less than the cost it would have taken other developers, and in half the time. Robert is as good as they come, and a true professional. Anyone thinking of working with him, stop thinking about it and hire him. You won’t regret it.”
Matthew Bennett
CEO @ Winning Social
“I really enjoyed my experience with Toptal. Searching for a developer was both painless and engaging, and the first match was a perfect fit! Toptal is a fantastic way to find talented developers for small or large aspects of your project.”
Willem Shepherd
Creative Director @ Mookieyams
“Back in July '12, FundedByMe needed to quickly scale our development team to create the equity crowdfunding leg of our operation. Working with a small budget, we couldn't spend time on vetting candidates, so we turned to Toptal. They identified a stellar developer that truly set the bar when it came to delivering product.”
Arno Smit
CTO @ FundedByMe.com
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My team is going to personally help you find the best candidate to join your team.

Alvaro Oliveira
VP of Talent Operations