Welcome to Warner Bros. Discovery… the stuff dreams are made of.

Who We Are…

When we say, “the stuff dreams are made of,” we’re not just referring to the world of wizards, dragons and superheroes, or even to the wonders of Planet Earth. Behind WBD’s vast portfolio of iconic content and beloved brands, are the storytellers bringing our characters to life, the creators bringing them to your living rooms and the dreamers creating what’s next…

From brilliant creatives, to technology trailblazers, across the globe, WBD offers career defining opportunities, thoughtfully curated benefits, and the tools to explore and grow into your best selves. Here you are supported, here you are celebrated, here you can thrive.

Senior Machine Learning Engineer – Audience Intelligence

About the Role

We are seeking a Senior Machine Learning Engineer to lead the development and deployment of scalable machine learning solutions for the Audience Intelligence team. You will work on projects such as building scalable lookalike and predictive audiences, user behavior modeling, ML forecasting systems, ML-based ID resolutions, and developing ML solutions to better understand HBO Max user bases. This role blends deep technical expertise, research rigor, and production-grade engineering practices. You will mentor junior engineers and scientists, collaborate cross-functionally, and advance our ML capabilities through innovation and thought leadership.

Key Responsibilities

• Model Development: Design and implement machine learning models for audience intelligence applications, including lookalike and predictive audience generation, user behavior modeling, ML forecasting, ML-based ID resolution, and ML-based user base characterization for HBO Max. Stay current with ML research, explore new methodologies, and contribute to the company’s research agenda through publications and open-source contributions when possible.
• End-to-End Model Delivery: Architect, build, and maintain complete ML pipelines from data ingestion and processing to model deployment and monitoring in production environments, ensuring robust delivery and operational excellence.
• Infrastructure & Automation: Develop robust, scalable infrastructure and automated workflows for ML training, evaluation, and deployment, using best practices in MLOps.
• Cross-Functional Collaboration: Work closely with product, engineering, and business stakeholders to translate requirements into effective ML solutions.
• Mentorship: Guide and mentor junior engineers and scientists, fostering a culture of knowledge sharing and technical excellence.
• Production Operations: Ensure robust model deployment, monitoring, and optimization to meet business requirements for latency, concurrency, and reliability.
• MLOps Governance & Compliance: Promote best practices around MLOps among broader data science groups to ensure consistent model quality and faster deployment cycles. Ensure end-to-end governance and compliance for ML systems by enabling model traceability (e.g., audit trails for model changes), enforcing data privacy standards and meeting regulatory requirements relevant to our industry.

Required Qualifications

• Education: PhD or MSc in Machine Learning, Computer Science, Data Science, or a closely related field.
• Experience: 3+ years of hands-on experience in machine learning engineering, including model development and production deployment.
• Technical Skills: Proficient in Python and ML frameworks such as Py Torch, Tensor Flow, MLflow, and Sage Maker.
• Expert on SQL and large-scale data processing languages.
• Proven track record of deploying ML models to production.
• Familiarity with distributed computing systems (Spark, EMR).
• Experience with cloud platforms (AWS, Databricks, Snowflake).
• Strong computer science fundamentals, including data structures, algorithms, and system design.
• Mindset: Strong desire to learn new techniques and adapt to evolving business needs.
• Communication: Ability to clearly articulate ML concepts to diverse stakeholders.

Preferred Qualifications

• Experience in AI/ML advertising solutions, marketing sciences, recommendations, search, ranking and personalization systems.
• Publications in top tier ML conferences or contributions to open-source projects.
• Experience with CI/CD, DevOps, and MLOps principles for building and deploying ML systems.

Additional Information

On December 5, Netflix and Warner Bros. Discovery announced they have entered into a definitive agreement under which Netflix will acquire Warner Bros., including its film and television studios, HBO Max and HBO. The transaction is expected to close after the separation of Warner Bros. Discovery's Global Networks division, Discovery Global, into a new publicly-traded company, which is expected to be completed in Q3 2026. For more details, including leadership appointments and information on individual brands, please visit our newsroom here.

Although you will be hired by Warner Bros. Discovery, upon the planned spin-off of Discovery Global in 2026, your employment likely will transition to Warner Bros. During this period of transformation, you’ll have an exciting opportunity to lay the foundation at one of the world’s premier entertainment brands.

How We Get Things Done…

This last bit is probably the most important! Here at WBD, our guiding principles are the core values by which we operate and are central to how we get things done. You can find them at www.wbd.com/guiding-principles/ along with some insights from the team on what they mean and how they show up in their day to day. We hope they resonate with you and look forward to discussing them during your interview.

Championing Inclusion at WBD

Warner Bros. Discovery embraces the opportunity to build a workforce that reflects a wide array of perspectives, backgrounds and experiences. Being an equal opportunity employer means that we take seriously our responsibility to consider qualified candidates on the basis of merit, without regard to race, color, religion, national origin, gender, sexual orientation, gender identity or expression, age, mental or physical disability, and genetic information, marital status, citizenship status, military status, protected veteran status or any other category protected by law.

If you’re a qualified candidate with a disability and you require adjustments or accommodations during the job application and/or recruitment process, please visit our accessibility page for instructions to submit your request.

In compliance with local law, we are disclosing the compensation, or a range thereof, for roles in locations where legally required. Actual salaries will vary based on several factors, including but not limited to external market data, internal equity, location, skill set, experience, and/or performance. Base pay is just one component of Warner Bros. Discovery’s total compensation package for employees. Pay Range: $132,300.00 - $245,700.00 salary per year. Other rewards may include annual bonuses, short- and long-term incentives, and program-specific awards. In addition, Warner Bros. Discovery provides a variety of benefits to employees, including health insurance coverage, an employee wellness program, life and disability insurance, a retirement savings plan, paid holidays and sick time and vacation.

If you’re a qualified candidate with an arrest or conviction record, please know that your application will be considered in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.