Data Scientist II — Hybrid (Atlanta/Chicago) | ML & AI

Company description

Welcome to Our World

We’ve been leading the charge in the affiliate industry from day one—establishing performance marketing and paving the way for future innovations. We're known for maintaining one of the largest, most reliable partnership platforms with impeccable, personalized service.

Founded in Santa Barbara, California in 1998, CJ (formerly Commission Junction) stands as the most trusted name in performance marketing. We specialize in building partnerships between top brands and reputable publishers to drive revenue and business growth. CJ’s industry-leading solutions make us the platform of choice for over 3,800 global brands across sectors like retail, travel, finance, technology, and home services.

As part of Publicis Groupe, our savvy data capabilities, cutting-edge tech, and strategic expertise facilitate genuine connections, allowing brands to reach consumers wherever they are.

A Quick Peek at Affiliate Marketing

Think back to your last online purchase. Did an influencer tip you off about a great product and offer a discount? Or perhaps you relied on a trusted review site to make your decision? Whatever path you took, affiliate publishers likely played a role by influencing, informing, or helping you find the best deal. CJ connects brands with these publishers, creating valuable resources for shoppers like you.

Overview In this Data Scientist II role at CJ, you will build and scale data science, AI, and analytics solutions that drive smarter marketing decisions and power innovation across the business. You will work at the intersection of machine learning, data engineering, and analytics, developing production-ready models, data pipelines, and data products that support areas such as LLM visibility, conversational analytics, and next-generation marketing intelligence.

You will partner closely with Data Science, Engineering, and Product teams to design and deliver scalable solutions, including recommendation systems, AI-driven applications, and modern data workflows. This role is ideal for someone who enjoys solving complex problems, working with large-scale data, and building solutions that are used across both internal teams and client-facing applications.

Responsibilities

What you will do

· Own end-to-end data science projects, including scoping, data exploration, modeling, validation, and delivery of insights

· Analyze large-scale e-commerce and advertising datasets to find opportunities and support growth strategies

· Develop and maintain machine learning models, including recommendation systems, with a focus on performance and scalability

· Build and support conversational analytics solutions using modern AI and foundational models

· Design and implement scalable data pipelines and workflows in a cloud-based environment

· Create Tableau dashboards and BI-driven chatbot or agent solutions that translate complex analysis into clear, actionable insights

· Collaborate with cross-functional teams to deliver scalable data and AI solutions

· Communicate technical findings and recommendations to both technical and non-technical collaborators

Qualifications

What we look for

· 3 to 5 years of experience in data science, analytics, or a related field

· Hands-on experience with Python, PySpark or Scala, and Tableau or Power BI

· Experience using GitLab or GitHub for version control and collaborative development

· Experience working with cloud-based data platforms such as Databricks or Snowflake

· Experience in AdTech or MarTech, ideally within e-commerce, travel, or finance

· Proven ability to build scalable data solutions and deliver actionable insights

· Experience working with or building AI-driven solutions, including LLM-based applications

· Familiarity with machine learning techniques such as recommendation systems, clustering, or reinforcement learning

· Strong communication skills with the ability to clearly explain technical concepts to a range of stakeholders

Preferred

· Experience integrating LLMs into business workflows or building conversational analytics solutions

· Experience developing APIs or services using tools such as FastAPI

· Experience with medallion architecture for ETL/ELT workflows

Additional information

This is a hybrid role requiring 3 days a week in Atlanta or Chicago

You must be work authorized in the United States without the need for employer sponsorship.

CJ is the leader in Performance Marketing. We take pride in our innovative technology, comprehensive data solutions and our people. We equip our teams with advanced t