Data Scientist

Overview Data Scientist – Enterprise ClientIn this client-facing Data Scientist role at CJ, you will serve as a dedicated analytics partner to a large enterprise client, delivering data-driven insights and advanced analytical solutions in a digital advertising environment. You will own end-to-end projects that support campaign performance, measurement, and optimization, helping drive growth through high-quality data, clear reporting, and actionable recommendations.You will work closely with client collaborators, account teams, and cross-functional partners to translate business needs into scalable data solutions. This role is ideal for someone who thrives in a fast-paced, client-facing environment and enjoys combining technical expertise with strategic problem-solving to influence marketing outcomes.Responsibilities Lead and support client-facing data science and analytics projects within a complex enterprise digital advertising environmentOwn end-to-end project execution, including scoping, data exploration, modeling, validation, and delivery of actionable insightsEnsure data accuracy and reliability across reporting and analytics workflows, including data validation, monitoring, and issue resolutionAnalyze large-scale e-commerce and advertising datasets to find opportunities and support growth across paid media and lead generation programsDesign and interpret incrementality tests, lift studies, and other measurement frameworks to evaluate performance and optimize marketing spendDevelop analytical models, including forecasting and inferential analysis, and apply machine learning techniques where appropriate to improve workflowsBuild Tableau dashboards and chatbot or agent solutions and reporting that translate complex analysis into clear, actionable insights for internal and client collaboratorsCollaborate with account teams, engineers, and data scientists to deliver integrated, scalable data solutionsPresent findings and recommendations to both technical and non-technical audiences in a clear and compelling wayQualifications 2+ years of experience in data science, analytics, or a related fieldHands-on experience with Python, PySpark or Scala, and TableauExperience using GitLab or GitHub for version control and collaborative developmentAdTech or MarTech experience, ideally within e-commerce, travel, or financeStrong understanding of performance marketing, including affiliate, influencer, and partner-based models, as well as how traffic, conversion, and commission structures drive program performanceExperience working with enterprise clients or within complex marketing organizationsProven ability to deliver actionable insights and scalable data solutions in a client-facing environmentFamiliarity with measurement methodologies such as incrementality testing, lift studies, or MMMExperience working with or applying AI-driven solutions, including LLM-based toolsStrong communication skills with the ability to explain complex concepts to a range of stakeholdersPreferred: Experience integrating LLMs into business workflows or applying them to analytics use casesExperience with forecasting, attribution, or advanced measurement frameworksAdditional information This is a hybrid role requiring 3 days a week in Chicago or Atlanta. 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 tools, training and career development opportunities all to provide modern solutions, strategies and support to deliver high quality results for our clients. We work in an enthusiastic, collaborative team setting that values outstanding performance.We\'re a community of creative and passionate problem solvers who go the distance to tackle the tough questions, think creatively, and drive resourceful growth, for our clients—and ourselves. We foster and embody an inclusive and collaborative culture where diverse perspectives are sought, relationships are valued, and people feel accepted with a sense of belonging in expressing themselves authentically. We pride ourselves in having a workplace environment that values both work and play.Why Our Workplace Stands OutApart from offering competitive salaries, 401K matching, wellness programs, and comprehensive medical, dental, and vision coverage, we provide:Flexible time off without the hassle of accrualA generous number of paid holidaysCompany-sponsored team-building eventsAn Employee Referral ProgramAnnual recognition awardsHybrid work arrangements for optimal work-life balanceParental bonding leaveBackup care options for children and eldersAn employee discount programInternational SOS program for global supportBusiness Resource Groups, where employees connect over shared interests to cultivate an engaging, inclusive environment...and those are just a few of our great perks! Come join us and see what makes our company a great place to work.If you require accommodation or assistance with the application or onboarding process specifically, please contact USMSTACompliance@publicis.com.Compensation Range: $73,150.00 - $101,010.00 Annually. This is the pay range the Company believes it will pay for this position at the time of this posting. Consistent with applicable law, compensation will be determined based on the skills, qualifications, and experience of the applicant along with the requirements of the position, and the Company reserves the right to modify this pay range at any time. Temporary roles may be eligible to participate in our freelancer/temporary employee medical plan through a third-party benefits administration system once certain criteria have been met. Temporary roles may also qualify for participation in our 401(k) plan after eligibility criteria have been met. For regular roles, the Company will offer medical coverage, dental, vision, disability, 401k, and paid time off. The Company anticipates the application deadline for this job posting will be 5/12/26.All your information will be kept confidential according to EEO guidelines.#J-18808-Ljbffr