Marketing Data Analyst II, Ecommerce at CJ | Chicago, IL | $89K/yr – $136K/yr

Marketing Data Analyst II, Ecommerce

Chicago, IL (Hybrid)

$89K/yr – $136K/yrMid Level3+ years expFull time

Posted 6 weeks ago

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Job Summary

Make data driven client impact the core of your role by owning forecasting, incrementality tests, MMMs, and ML driven insights, with heavy client exposure and scalable data delivery.

Advanced analytics leadership: own forecasting, incrementality, lift tests, and program optimization.
Client partnership: shape measurement strategies and present findings to non technical stakeholders.
Technical execution: data querying, modeling, dashboards, and cross functional collaboration.

Job Description

Lead and support advanced client-facing data science and analytics projects, including forecasting, incrementality measurement, and program optimization.
Act as a strategic partner to account teams, proactively identifying opportunities, shaping measurement strategies, and influencing decision-making.
Apply hypothesis-driven analysis to diagnose performance and quantify impact.
Take ownership of project scoping, data querying and modeling, quality checks, and delivery of actionable insights.
Analyze large-scale e-commerce and advertising datasets, leveraging statistical and ML methods to uncover opportunities and support growth strategies.
Design and interpret incrementality tests, marketing mix models (MMM), and lift tests to assess causal impact and optimize marketing spend.
Develop machine learning models, including forecasting and inferential analysis, and implement LLM-driven solutions where applicable.
Create and deliver Tableau dashboards and reporting that distill complex analysis into clear, actionable insights for both internal and external stakeholders.
Collaborate with account teams, engineers, and other data scientists to design and implement scalable data solutions.
Present technical findings and recommendations to non-technical audiences, demonstrating strong client-facing and communication skills.

CJ

3.3 Glassdoor

From pioneering affiliate marketing to powering the future of connected commerce, CJ has been the trusted leader in partnership-based growth since 1998.Founded in Santa Barbara, California, CJ (formerly Commission Junction) is the world’s most established performance marketing platform, trusted by over 3,800 global brands across retail, travel, finance, and home services. Our technology and expertise connect 167K+ publishers and brands to billions of consumers worldwide, driving measurable, profitable growth.As part of Publicis Groupe, and aligned with Publicis Media, we unite data, technology, and strategic expertise to deliver a truly customer-centric approach. With a legacy of innovation and a vision for what’s next, CJ continues to set the standard for performance marketing — building partnerships that scale, campaigns that perform, and commerce that connects.

Founded in 1998

Santa Barbara, California, USA

1.7K employees (352 in marketing)

www.cj.com

55% recommend to a friend

53% CEO approval