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Hire the best Big Data architects near Chicago.

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

Hafiz Hamid

Freelance Big Data Developer at Toptal since March 10, 2018
Hafiz is a seasoned software architect who's lead complex software projects for last 12 years at organizations like Bing (Microsoft), Lyft, and Salesforce.com in full-time roles—now, he's pursuing a freelancing career. His areas of expertise are back-end/server development, databases, big data, cloud computing, DevOps, web crawling, and search engines. Click to continue

Zach Goldstein

Freelance Big Data Developer at Toptal since March 26, 2016
Zach is a software engineer with a decade of experience developing software across a wide variety of platforms. His focus now is on distributed systems and back-end development with Python, Golang, and Node.js. He has built data pipelines processing hundreds of millions of unique data points, and mobile payment platforms processing hundreds of thousands of dollars. Click to continue

Roman Semeine

Freelance Big Data Developer at Toptal since January 3, 2018
Roman is a data scientist who has also worked as an engineer for a number of years. Due to his diverse background, he can blend together low-level data engineering with advanced analytics and cutting-edge artificial intelligence. Lately, he's been heavily involved in projects dealing with machine learning and artificial intelligence. Click to continue

Alejandro Correa Bahnsen

Freelance Big Data Developer at Toptal since July 20, 2015
Alejandro holds a PhD in Machine Learning. He has over 8 years of experience developing data science projects in different areas such as credit card fraud detection, credit scoring, collections, churn, and direct marketing. He enjoys giving talks on successful applications of big data science to different organizations. Moreover he is an active contributor to several open source projects such as scikit-learn. Click to continue

Yanchuan Sim

Freelance Big Data Developer at Toptal since April 28, 2016
Yanchuan is a PhD candidate in language technologies from Carnegie Mellon University with over seven years of experience working with machine learning systems and cutting-edge technologies in natural language processing. Currently, he works with several startups to incorporate ML and NLP technologies into their products. Click to continue

Brandon Parise

Freelance Big Data Developer at Toptal since January 29, 2017
Brandon is an AWS Certified Solutions Architect with 16 years of professional experience in software engineering, digital marketing, and technical consulting. He has extensive experience across numerous programming languages and open source technologies. He's an effective communicator with a high business acumen and a passion for solving challenging business problems. Click to continue

Brandon Varilone

Freelance Big Data Developer at Toptal since June 24, 2013
Brandon has 13+ years identifying business objectives and defining technical strategies and processes to achieve them. He demonstrates an extraordinary aptitude for leveraging technology to efficiently and concisely solve complex problems. His expertise includes thought leadership, technical strategy, enterprise architecture, cloud computing and big data. Click to continue
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“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.”
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Senior VP of Web Development @ Networld Media Group
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CTO @ Applied Business Technologies, LLC
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Communications Project Manager @ Lake Pointe Church
“We were extremely impressed with both Toptal and our developer, Bojan. They were professional and flexible with our schedule. On multiple occasions, we needed to alter our timeline and they never hesitated to accommodate us. Bojan was communicative and delivered what we asked for on-time and exactly to spec. I know that should we need additional work, we will surely be looking to hire Bojan and Toptal again. ”
Stephen Vasallo
Co-founder @ Bubble
“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
“Getting set up with Toptal and finding a new team member was so easy, I don't know why anyone wouldn't give it a try. Best of all, we no longer have to worry about finding great people to help with our projects!”
Mike Branch
President & CTO @ Harbor System Integrators, Inc
“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
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Product Lead @ ClassDojo
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Jason Kulik
Co-Founder @ ProHatch
“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
“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
“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 developer within 2 weeks. I love you, Toptal.”
Ian Fosbery
CTO @ NMRKT
“I couldn’t have been more pleased with Toptal. They are professional, quick, well priced, and fun. I will be using them again for my next project, and the next, and the next, and the next ... ”
Mac Smith
President @ New Texas Investments

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