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Hire the best data scientists near San Francisco.

Toptal is a marketplace for top remote data scientists. Top companies and start-ups in San Francisco choose Toptal Data science freelancers for their mission critical software projects.
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Hire remote data scientists near San Francisco or in a similar time zone

Katia Hayati

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-related algorithms, searching, and machine learning, but she has worked up and down the whole stack. Click to continue

Robby Goetschalckx

Member since November 5, 2017
Machine Learning expert with 10+ years of experience in research. Back-end software developer for Machine Learning solutions. Click to continue

Allen Gary Grimm

Member since October 17, 2014
Fascinated by the intersection of abstraction and reality, Allen found his calling in data science. Formally trained in Machine Learning and with a breadth of experience in applying ML models to production, his specialty is in finding tractable solutions to complex data modeling problems (user behavior prediction, recommender systems, NLP, and intelligent data cleaning). Click to continue

Jake Hershey, Ph.D.

Member since September 6, 2017
Jake is an accomplished marketing statistician, data scientist, and database programmer with 17 years of experience building SQL Server databases, predictive models, machine learning solutions, and custom interactive web-based data visualizations. He is the founder of SurveyGraphics.com - a data visualization tool for the market research industry. Click to continue

Isaac Nygaard

Member since April 12, 2017
Isaac has built web and desktop applications for many years. He also has system administrator experience managing web servers and computing clusters. He's great at coming up with new ideas and developing new algorithms to solve complex problems. He is able to read and implement technical papers and is currently conducting computer science research in machine learning and artificial intelligence. Click to continue
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Toptal on TV
"Toptal is killing it, it kind of owns this market."
Andrew Ross Sorkin Reviews Toptal
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"Tech companies simply cannot find the quality employees they want to hire. The solution: Toptal."
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Toptal in the press
“Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.”
Selina Wang
“Toptal allows corporations to quickly assemble teams that have the right skills for specific projects.”
Steven Norton
Testimonials
“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 throughout our project. We definitely recommend Toptal for finding high quality talent quickly and seamlessly.”
Ryan Morrissey
CTO @ Applied Business Technologies, LLC
“With Toptal, we are able to find talented developers in a matter of weeks instead of months. The quality of talent they supply is extremely high as the developers are able to immediately onboard and ramp incredibly fast.”
Zac Carman
CEO @ ConsumerAffairs
“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
“In Higgle's early days, we needed the best-in-class developers, at affordable rates, in a timely fashion. Toptal delivered! ”
Lara Aldag
CEO @ Higgle
“We have been incredibly happy with our Toptal experience. Initially a skeptic, the process to find and recruit a fabulous iOS developer was very easy. Rather than sifting through hundreds of CVs, we saw two and hired them. They have worked effectively, getting up to speed incredibly quickly and have almost become part of the team. We would definitely use Toptal again. ”
James O'Day
Co-Founder @ Pearlshare
“Robert was such a breath of fresh air. He was an excellent communicator and knew exactly what I was looking for. Now, I have a website that works better than I thought it could for less than the cost -- and in half the time -- it would have taken other developers. Robert is as good as they come, a true professional -- anyone thinking of working with him, hire him. You won’t regret it.”
Matthew Bennett
CEO @ Winning Social LLC
“The task of finding and hiring the right developers and programmers can be daunting, especially for startups. After sifting through countless unfit freelancers, we came across Toptal. They were able to fill our open position in no time, and I'd highly recommend the service!”
Josef Holm
CEO @ Tubestart
“Toptal was the best thing to happen to my web app. Initially, I hired a team of freelancers from India through another freelancing website—which was a nightmare. In fact, it was so bad that I had to start again from scratch, which is when I found Toptal. The experiences were like night and day. It was so refreshing to get partnered up with a quality developer that I could trust due to Toptal's extensive screening process. I will only use Toptal from now on and highly recommend you do the same.”
Chris Holtzhauer
CEO @ HootRecruit
“Working with Marcin is a joy. He is competent, professional, flexible, and extremely quick to understand what is required and how to implement it. ”
André Fischer
CTO @ POSTIFY
“We used Toptal to hire a developer with extensive Amazon Web Services experience. We interviewed four candidates, one of which turned out to be a great fit for our requirements. The process was quick and effective. ”
Abner Guzmán Rivera
CTO and Chief Scientist @ Photo Kharma
“One of our 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 applications, interview and test the applicants' capabilities, 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, and hire with a risk-free trial -- much faster, a lot easier, and with incredible results.”
Catalin S. Balaci
Owner @ EvoBits Information Technology SRL
“Finding a good developer who specialised in the technologies we use seemed like an impossible task... until we used Toptal. We had several trial periods and have just accepted our first developer to join the team! The whole process went seamlessly and without any surprises or hidden costs. We are very happy and will continue to work together!”
Artem Tolmachev
CEO @ eKids.nl
“The best talent is at Toptal for sure. It's way better and faster than any other means of getting top talent.”
Rajesh Nagarajan
Co-Founder & CTO @ maxmantra
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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