Jobs for freelance data science engineer python sql at Chicago

Who You'll Work With Driving lasting impact and building long-term capabilities with our clients is not easy work. You are the kind of person who thrives in a high performance/high reward culture - doing hard things, picking yourself up when you stumble, and having the resilience to try another way forward. In return for your drive, determination, and...

Chicago Trading Company (CTC) is a premier proprietary trading firm specializing in options market making.  Our collaborative culture fuels innovation in quantitative research, systematic trading strategies, and cutting-edge trading technology.  For over three decades CTC has provided critical liquidity across derivatives exchanges worldwide - making them...

If you are a technology visionary with a passion for transforming global tax business with digital technology, consider working with the US Tax Transformation technology team. This is an exciting opportunity to support global execution of Deloitte's tax strategy as we shift from "doing digital" to "being digital" by reimagining how we engage with our...

Company Description Overview The Enterprise Business Systems team is building Epsilon's next-generation enterprise Corporate Intelligence Platform (CIP) on Databricks. CIP brings together critical data from HR, Finance, Product Development, Revenue Operations, Resource Planning, and other enterprise systems into a governed, enterprise-scale data foundation....

About Rewards Network For 41 years, Rewards Network has been helping restaurants grow revenue, increase traffic, and boost customer engagement through innovative financial, marketing services, and premier dining rewards programs. By offering unique card-linked offers, we introduce diners to fantastic restaurant experiences, leveraging advanced technology...

Chicago Trading Company (CTC) is a premier proprietary trading firm specializing in options market making. Our collaborative culture fuels innovation in quantitative research, systematic trading strategies, and cutting-edge trading technology. For over three decades CTC has provided critical liquidity across derivatives exchanges worldwide - making them...

At Expedia Group, we help travelers explore the world, one journey at a time. As a global travel company powered by passionate people, trusted partnerships, and leading technology, we connect travelers, partners, and advertisers through our consumer brands, B2B network, and travel advertising business. Here, you'll do meaningful work that helps millions of...

IGT , where innovation meets entertainment on a global scale! From the casino floor to your mobile screen, we deliver thrilling, responsible, and unforgettable gaming experiences—powered by world‑class content, strong technical and commercial capabilities and nurtured by a culture of collaboration, accountability, and ownership. Whether...

The Aspen Group (TAG) is one of the largest and most trusted retail healthcare business support organizations in the U.S., supporting over 23,000 healthcare professionals and team members at more than 1,150 locations across 48 states. Our five supported healthcare practices operate under the brands Aspen Dental, ClearChoice, WellNow, Chapter Aesthetic...

Staying a step ahead of fraudsters takes an inquisitive mind, an appetite to dig deeper, and the imagination to shed new light on how we fight fraud — and here, it all starts with data As a Senior Data Scientist on Enova’s Fraud Analytics team, you’ll be the quantitative engine of our fraud prevention effort You’ll develop, enhance,...

Heidrick & Struggles is the world’s foremost advisor on executive leadership, driving superior client performance through premier human capital leadership advisory services. For more than 70 years, we’ve delivered value for our clients by leveraging unrivaled expertise to help organizations discover and enable outstanding leaders and teams. Learn more...

At Early Warning, we’ve powered and protected the U.S. financial system for over thirty years with cutting-edge solutions like Zelle®, Paze℠, and so much more. As a trusted name in payments, we partner with thousands of institutions to increase access to financial services and protect transactions for hundreds of millions of consumers and small...

Description About Net Conversion: We're a data-obsessed marketing and analytics agency in downtown Orlando, driven by a relentless pursuit of 'more'—for our clients and ourselves. Our people are our differentiator, fostering a unique, award-winning culture (10+ times 'Best Place to Work') that champions disruptive thinking and work-life balance. We're not...

About the role The Business Intelligence Developer owns our data platform end to end, from POS source system ingestion through Microsoft Fabric to the Power BI dashboards our teams use every day. This role is the data and analytics subject matter expert on the IT team and works closely with the Revenue Manager and Finance to turn raw ticketing and...

Chicago Trading Company (CTC) is a premier proprietary trading firm specializing in options market making. Our collaborative culture fuels innovation in quantitative research, systematic trading strategies, and cutting-edge trading technology. For over three decades CTC has provided critical liquidity across derivatives exchanges worldwide - making them...

Scribd, Inc. is on a mission to advance human understanding. Our four products — Scribd®, Slideshare®, Everand™, and Fable — help billions of people across the globe move beyond access and into insight, application, and expertise. Culture at Scribd, Inc.We support a culture where our employees can be real and be bold; where we debate and...

We are looking for a detail-oriented and analytical Business Intelligence (BI) Analyst to join our growing team. This is an excellent opportunity for recent graduates who are passionate about data, business analytics, and creating meaningful insights that support strategic decision-making. As a Business Intelligence Analyst, you will work with business and...

Chemistry Masters – AI Data Trainer About The Role We're looking for chemistry experts to help train and improve the next generation of AI models. At Alignerr, we partner with the world's leading AI research labs — and we need people who think rigorously about chemistry to help these systems reason better, solve harder problems, and produce more...

The Aspen Group (TAG) is one of the largest and most trusted retail healthcare business support organizations in the U.S., supporting over 23,000 healthcare professionals and team members at more than 1,150 locations across 48 states. Our five supported healthcare practices operate under the brands Aspen Dental, ClearChoice, WellNow, Chapter Aesthetic...