Data Engineer, Performance Marketing

Data Engineer

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.

This is a hybrid role requiring 3 days a week in a CJ office location.

Must have AdTech/Mar Tech industry experience, specifically in e-commerce, travel, and finance.

We are seeking a Data Engineer to design, build, and maintain scalable data platforms, pipelines, and infrastructure that support analytics, AI/ML, reporting, operational systems, and enterprise data products across the organization. This role will work across cloud platforms, data ingestion frameworks, and modern lakehouse architectures to deliver reliable, secure, and governed data solutions that enable business, product, engineering, and data teams.

• Design, develop, and maintain scalable ETL/ELT pipelines using Python, PySpark, SQL, and Spark-based technologies.
• Serve as an advocate for AI-native engineering workflows, demonstrating how tools such as Claude Code, Codex, Git Hub Copilot, Databricks Genie and related assistants can improve developer productivity, code quality, and operational efficiency.
• Build and support data ingestion frameworks leveraging APIs, SFTP, cloud storage, databases, and third-party integrations.
• Develop and maintain data products within a modern Data Lakehouse architecture, following Medallion (Raw, Bronze, Silver, Gold) design principles.
• Create and optimize data workflows, orchestration processes, and monitoring solutions to ensure pipeline reliability, performance, and scalability.
• Manage cloud-based data infrastructure and storage solutions across platforms such as Databricks, AWS, Snowflake, and Google Cloud.
• Build operational tooling and monitoring dashboards to track pipeline health, resource utilization, uptime, and system performance.
• Collaborate with Data Science, Analytics, Product, and Engineering teams to deliver trusted and scalable data assets.
• Maintain source control, CI/CD processes, repository standards, and deployment best practices across data platforms.

• 3–5 years of experience in Data Engineering, Analytics Engineering, or related disciplines.
• Experience with cloud-based data platforms such as Databricks, AWS, Snowflake, or Google Cloud.
• Familiarity with integrating AI and automation tools (e.g., Git Hub Copilot, Natural Language Query tools) to enable you to move faster and deliver higher quality code.
• Strong proficiency in SQL and Python.
• Experience with Spark and distributed data processing (PySpark preferred).
• Strong experience with data pipelines (ETL/ELT, event-driven, or workflow-based systems)
• Understanding of Data Lake, Lakehouse, and Medallion architecture concepts.

This is a hybrid role requiring 3 days a week in office. 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…