Hire the Best Data Scientists Near Chicago

Toptal is a marketplace for top remote data scientists. Top companies and start-ups in Chicago choose Toptal Data Science freelancers for their mission-critical initiatives.

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Hire remote data scientists near Chicago or in a similar time zone

View Alex

Alex Ognev

Freelance Data Scientist

United StatesToptal Member Since July 7, 2020

Alex has 20+ years of experience in software development and data science. He has worked for large companies building enterprise-scale software as well as on small agile teams and solo projects. He's undertaken data analysis, data visualization, and predictive modeling with a heavy emphasis on financial and time-series data over the past decade.

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Data ScienceMachine LearningPythonSQLPython 3Big DataHigh-frequency Trading (HFT)Automation
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Ishola Babatunde Isaac

Freelance Data Scientist

United StatesToptal Member Since February 15, 2019

Isaac has experience developing and deploying machine learning solutions to problems across various domains including computer vision, signal processing, failure prediction, time series forecasting, network security, natural language processing, and 3D reconstruction. Isaac has worked in both small and large organizations and has led projects from idealization to product deployment.

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Data SciencePythonJavaSQLTensorFlowPandasMySQLPostgreSQLArtificial Intelligence (AI)Computer VisionMachine Learning
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Emmanuel Tsukerman

Freelance Data Scientist

United StatesToptal Member Since October 15, 2019

Emmanuel graduated from Stanford University. In 2017, his ML-based anti-ransomware product was awarded Top 10 Ransomware Products of 2018 by PC Magazine. In 2018, he designed an ML-based malware detection system for Palo Alto Network's WildFire service (over 30,000 customers). In 2019, Emmanuel authored the Machine Learning for Cybersecurity Cookbook and launched the Cybersecurity Data Science Course on Udemy.

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Data SciencePythonMachine LearningArtificial Intelligence (AI)Python 3
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Byron Formwalt

Freelance Data Scientist

United StatesToptal Member Since March 24, 2014

Byron has 20 years of experience in highly technical algorithm development. He holds a PhD in electrical engineering and offers extensive knowledge of machine learning and video/image processing. Byron also has Toptal specializations in AI and data science. His skillset includes full-stack iOS and macOS desktop application development.

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Data ScienceCC++RubyRuby on Rails (RoR)iOS SDKXcodeiOSLinuxEmbedded LinuxSwiftPython 3PostgreSQL
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Rustam Ishmatov

Freelance Data Scientist

United StatesToptal Member Since June 1, 2017

Rustam is a professional software engineer with over a decade of experience, creating highly performant and easy-to-maintain enterprise apps. Rustam excels at full-stack development and possesses expertise in Java, JavaScript, and SQL and keeps up to date with several cutting-edge technologies and frameworks. Rustam is also quite comfortable with API integrations, SQL tuning, problem-solving, and has a demonstrated history of delivering bug-free applications.

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Data ScienceGitPL/SQL DeveloperWebStormJava 8Spring 4Oracle PL/SQLJavaScriptAlgorithms
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Thejas Prasad

Freelance Data Scientist

United StatesToptal Member Since October 23, 2020

Thejas is named one of the best young entrepreneurs on the Austin Inno's 25 Under 25 list. He has over five years of experience building a successful AI startup with Series A funding and a proven ability to successfully lead and deliver data science projects and products. Thejas is also experienced in full-stack, from building data engineering pipelines to using machine learning to deliver actionable insights and increased revenue for Fortune 100 business.

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Data SciencePandasPython
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Robert Corwin

Freelance Data Scientist

United StatesToptal Member Since June 25, 2020

Robert has 20 years of experience working with and analyzing large data sets, quantitative modeling, and data science. He has been a founder and/or an early employee at his last three companies. Robert's expertise as a portfolio manager and quantitative researcher includes skills in SQL, NoSQL, C++, C#, Python, AWS, and web technologies (HTML, JavaScript, and Angular).

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Data SciencePythonSQLMachine LearningETL
View Liang

Liang Kuang

Freelance Data Scientist

United StatesToptal Member Since June 1, 2020

Liang has a Ph.D. with a strong background in numerical computation, machine learning, deep learning, neural network, big data mining, visualization, and multiple programming. He developed the largest financial regulatory database in the world and a Consolidated Audit Trail (CAT), handling up to 400 billion records per trade day. He brings deep technical insights in designing algorithms and end-to-end analytic platforms, including data lakes and predictive ML/AL models for system optimization.

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Data ScienceMachine Learning
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Steven Calder

Freelance Data Scientist

United StatesToptal Member Since March 7, 2018

Steven is a versatile data scientist who can connect concepts from various fields of thought to create novel solutions and identify new areas to apply data. His work emphasizes clear communication of technical concepts via interactive visualizations and narrative storytelling, allowing decision-makers from all backgrounds to understand and take appropriate actions.

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Data ScienceTableauPandas
View Christopher

Christopher Karvetski

Freelance Data Scientist

United StatesToptal 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 novel data science solutions. He has expertise with R, SQL, MATLAB, SAS, and other platforms for data science.

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Data ScienceRSQLSASiOSOracleTensorFlowData Analyst
View Keyvis

Keyvis Damptey

Freelance Data Scientist

United StatesToptal Member Since July 3, 2019

Keyvis uses statistics and mathematics to discover valuable information by identifying, testing, and verifying relationships between all the factors influencing your business. This process unveils the nuances to the "lay of the land" when it comes to the costs, operations, or customer sentiment that your organization must work with. From there, you both can discover the impact of actions and design strategies around your organization's goals.

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Data SciencePythonPandasNeo4jMachine Learning

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A Hiring Guide

Guide to Hiring a Great Data Scientist

What makes a great data scientist? The answer depends on the branch of data science in question and your specific needs, but all data scientists inevitably share a core set of skills. This comprehensive hiring guide outlines critical skills and explains how to pick the right data scientist for the job.

Read Hiring Guide
Trustpilot
Toptal in the press

... allows corporations to quickly assemble teams that have the right skills for specific projects.

Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.

Our clients
Building a cross-platform app to be used worldwide
Building a cross-platform app to be used worldwide
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Creating an app for the game
Creating an app for the game
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Leading a digital transformation
Leading a digital transformation
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Testimonials

Tripcents wouldn't exist without Toptal. Toptal Projects enabled us to rapidly develop our foundation with a product manager, lead developer, and senior designer. In just over 60 days we went from concept to Alpha. The speed, knowledge, expertise, and flexibility is second to none. The Toptal team were as part of tripcents as any in-house team member of tripcents. They contributed and took ownership of the development just like everyone else. We will continue to use Toptal. As a start up, they are our secret weapon.

Brantley Pace, CEO & Co-Founder

Tripcents

I am more than pleased with our experience with Toptal. The professional I got to work with was on the phone with me within a couple of hours. I knew after discussing my project with him that he was the candidate I wanted. I hired him immediately and he wasted no time in getting to my project, even going the extra mile by adding some great design elements that enhanced our overall look.

Paul Fenley, Director

K Dunn & Associates

The developers I was paired with were incredible -- smart, driven, and responsive. It used to be hard to find quality engineers and consultants. Now it isn't.

Ryan Rockefeller, CEO

Radeeus

Toptal understood our project needs immediately. We were matched with an exceptional freelancer from Argentina who, from Day 1, immersed himself in our industry, blended seamlessly with our team, understood our vision, and produced top-notch results. Toptal makes connecting with superior developers and programmers very easy.

Jason Kulik, Co-Founder

ProHatch

As a small company with limited resources we can't afford to make expensive mistakes. Toptal provided us with an experienced programmer who was able to hit the ground running and begin contributing immediately. It has been a great experience and one we'd repeat again in a heartbeat.

Stuart Pocknee , Principal

Site Specific Software Solutions

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

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. He is competent, professional, flexible, and extremely quick to understand what is required and how to implement it.

André Fischer, CTO

POSTIFY

We needed a expert engineer who could start on our project immediately. Simanas 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. Toptal is now the first place we look for expert-level help.

Derek Minor, Senior VP of Web Development

Networld Media Group

Toptal's developers and architects have been both very professional and easy to work with. The solution they produced was fairly priced and top quality, reducing our time to launch. Thanks again, Toptal.

Jeremy Wessels, CEO

Kognosi

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

I'm incredibly impressed with Toptal. Our developer communicates with me every day, and is a very powerful coder. He's a true professional and his work is just excellent. 5 stars for Toptal.

Pietro Casoar, CEO

Ronin Play Pty Ltd

Working with Toptal has been a great experience. Prior to using them, I had spent quite some time interviewing other freelancers and wasn't finding what I needed. After engaging with Toptal, they matched me up with the perfect developer in a matter of days. The developer I'm working with not only delivers quality code, but he also makes suggestions on things that I hadn't thought of. It's clear to me that Amaury knows what he is doing. Highly recommended!

George Cheng, CEO

Bulavard, Inc.

As a Toptal qualified front-end developer, I also run my own consulting practice. When clients come to me for help filling key roles on their team, Toptal is the only place I feel comfortable recommending. Toptal's entire candidate pool is the best of the best. Toptal is the best value for money I've found in nearly half a decade of professional online work.

Ethan Brooks, CTO

Langlotz Patent & Trademark Works, Inc.

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

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

Toptal’s ability to rapidly match our project with the best developers was just superb. The developers have become part of our team, and I’m amazed at the level of professional commitment each of them has demonstrated. For those looking to work remotely with the best engineers, look no further than Toptal.

Laurent Alis, Founder

Livepress

Toptal makes finding qualified engineers a breeze. We needed an experienced 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

We needed some short-term work in Scala, and Toptal found us a great developer within 24 hours. This simply would not have been possible via any other platform.

Franco Arda, Co-Founder

WhatAdsWork.com

Toptal offers a no-compromise solution to businesses undergoing rapid development and scale. Every engineer we've contracted through Toptal has quickly integrated into our team and held their work to the highest standard of quality while maintaining blazing development speed.

Greg Kimball, Co-Founder

nifti.com

How to Hire Data Scientists Near Chicago

1

Talk to One of Our Industry Experts

A Toptal director of engineering will work with you to understand your goals, technical needs, and team dynamics.
2

Work With Hand-Selected Talent

Within days, we'll introduce you to the right data scientist for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

Work with your new data scientist for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.

Tap Into World-Class Talent

  • Trusted Experts Only

    Trusted Experts Only

    All of our talent are seasoned experts who ramp up quickly, readily contribute as core team members, and work with you to minimize onboarding time.

  • The Right Fit

    The Right Fit

    We have a knack for matching you with the right fit. Start working with your new hire on a no-risk trial period, paying only if satisfied.

  • Scale as Needed

    Scale as Needed

    Hire in under 2 weeks and scale your team up or down as needed, no strings attached.

  • Seamless Hiring

    Seamless Hiring

    We handle all aspects of billing, payments, and NDA’s. Let us take care of the overhead while you focus on building great products.

  • Flexible Engagements

    Flexible Engagements

    Choose the engagement type that suits your needs — hourly, part-time, or full-time — with the ability to change anytime.

  • Expert Talent Matching

    Expert Talent Matching

    Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.

Featured Toptal Data Science Publications

Yaroslav Kopotilov
EngineeringData Science and Databases

Embeddings in Machine Learning: Making Complex Data Simple

by Yaroslav Kopotilov
Juan Manuel Ortiz de Zarate
EngineeringTechnology

Stars Realigned: Improving the IMDb Rating System

by Juan Manuel Ortiz de Zarate
Antoine Hamon
EngineeringBack-end

Do the Math: Scaling Microservices Applications with Orchestrators

by Antoine Hamon
View More Data Science Articles

Top Data Scientists are in High Demand.

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