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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 initiatives.
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Hire remote Big Data architects near Chicago or in a similar time zone

Daphne Liu

Freelance Big Data Developer at Toptal since June 20, 2018
Daphne is a highly motivated Big Data Analytic Architect and SQL/Tableau developer with strong business analytic solution delivery skills and 20 years of progressively responsible OLTP/OLAP database development/architecture experience. She is a frequent seminar speaker and workshop trainer in business intelligent and analytic solutions. Daphne is experienced collaborating with business users in data modeling and business analytic solutions. Click to continue

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

Vlad Emelianov

Freelance Big Data Developer at Toptal since April 21, 2017
Vlad has never been the type of developer to rest on his laurels, he's always hungry to top his latest achievement. He's worked in the biggest IT company in Russia and then, later on, hardcore German guys transformed him into the best SC engineer and web developer hybrid around. Currently, he uses all his skills to deliver analysis tools of the future for the leading cinema loyalty program provider in the world. 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

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 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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Alex Haro
CEO @ Life360
“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 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
“We needed a talented developer and we needed him/her very quickly. So we turned to Toptal and couldn't be happier with the results! Our Toptal freelancer has contributed extraordinary knowledge, talent, and startup experience to our team. We will continue to work with Toptal to fulfill our future talent needs.”
Lindsay Fairman
Founder & Owner @ FairTech Labs, LLC
“We needed a programmer to help push a project over the finish line, and I figured -- best case -- Toptal would find someone who would come in and complete a few tickets. Instead, Sergio blended right in with the team and made significant progress after mere days of ramp-up. He even offered to take his laptop with him on vacation in case we had a customer issue with his code! He surpassed my expectations, and then some.”
Bryan Adams
CTO @ Healthsense
“Ignacio is one of the most diligent software developers that we have ever worked with—we feel like he's part of the family. He has always been flexible enough to work on our team's schedule and never misses deadlines. Toptal gets you the talent you need, on your timeline, keeping the process very low friction.”
Austin Evarts
CEO @ GoChime
“My business relationship with Toptal has been nothing short of terrific. From reviewing my project with their team to choosing a highly-talented developer, and all the way through releasing our application, it has been an incredibly smooth and successful experience.”
Gary Craig
Senior Analyst @ NetApp
“To take advantage of Toptal's capabilities, we actually remodeled the way we do our work. We develop pseudo code with some code fragments that we send to our Toptal developer, who has a specific task set. The work is then further processed by the next group of Toptal engineers. It's been very efficient and we've seen a massive improvement in our development speed.”
William North
CTO & Co-Founder @ Swizly
“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
“John has been so great to work with! He has met all our requirements, done a speedy job with excellence, and has completed everything we’ve asked him to. Working with him has been a great experience.”
Jenny Lord
Communications Project Manager @ Lake Pointe Church
“We had a wonderful experience with our Toptal consultant. He was very reliable and punctual, delivering excellent work on a budget—we will certainly be using him again!”
Barbara Karpf
President @ DecoratorsBest
“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
“Toptal helped us when we had a hiring gap we needed to fill. The developer we received was excellent, with a great work ethic and fit in very well with the team. We are very happy with the service and would definitely consider using Toptal again in future should we need additional help. ”
David Gildeh
CEO @ Dataloop.io

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