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Staff Data ScientistOpenX • New York, New York, United States
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Staff Data Scientist

OpenX
  • US
    New York, New York, United States
  • US
    New York, New York, United States
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About

Company at a Glance OpenX is focused on unleashing the full economic potential of digital media companies. We do this by making digital advertising markets and technologies that are designed to deliver optimal value to publishers and advertisers on every ad served across all screens.
At OpenX, we have built a team that is uniquely experienced in designing and operating high‑scale ad marketplaces, and we are constantly on the lookout for thoughtful, creative executors who are as fascinated as we are about finding new ways to apply a blend of market design, technical innovation, operational excellence, and empathetic partner service to the frontiers of digital advertising.
OpenX is seeking a Staff Data Scientist to join our Data Science team. Our exchange processes hundreds of billions of ad requests daily and generates petabytes of data, requiring advanced machine learning, deep learning, and modern AI techniques delivered through scalable platforms to create value for customers.
A Staff Data Scientist is a senior technical leader whose impact spans multiple teams and business domains. In this role, you will solve complex marketplace problems, set technical direction for your domain, architect major ML systems, mentor other scientists, and partner with engineering and product leaders on data‑driven strategy.
Problems at this level include auction and marketplace optimization, bidding and yield strategy, relevance and prediction systems at exchange scale, causal measurement of marketplace changes, and capabilities for training, validating, and monitoring ML systems in production.
The ideal candidate brings deep expertise in applied machine learning, strong judgment in selecting methods for business problems at scale, and a track record of translating business needs into high‑impact data science solutions.
Key Responsibilities
Technical Leadership & Architecture
Architect robust, scalable, and maintainable ML systems for broad use across the exchange, spanning training pipelines, real‑time inference, validation, and monitoring
Serve as a go‑to expert in deep learning and related advanced data science domains, with the breadth to guide method selection across adjacent areas
Lead the evaluation and adoption of new AI/ML modeling techniques, frameworks, and research advancements relevant to OpenX’s marketplace problems
Define and evolve technical standards and best practices within your domain, influencing broader adoption across the organization
Execution & Strategy
Identify and lead high‑impact, cross‑team data science initiatives, such as improving bidding strategies, building new prediction systems, or redesigning experimentation frameworks
In partnership with engineering and product leadership, drive the data science roadmap for a product area or platform capability
Partner with product managers and commercial stakeholders to translate marketplace problems into data science solutions with measurable business outcomes
Solve novel, ambiguous problems requiring innovation in methodology, algorithms, or feature engineering
Mentorship & Influence
Mentor and develop senior data scientists, helping them grow toward broader technical leadership
Raise the skills, impact, and scientific rigor of teams around them through guidance, architectural patterns, and strategic direction
Communicate technical strategy and build consensus for complex decisions across senior leadership and cross‑functional teams
Required Qualifications
Ph.D. in Data Science, Machine Learning, Computer Science, Physics, Mathematics, Operations Research, or related technical field with 6+ years of relevant industry experience; OR M.S./B.S. with 8+ years of relevant experience and a demonstrated track record of leading cross‑team technical strategy and delivering organization‑level impact
Deep expertise in deep learning and broad fluency across the modern ML toolkit, with strong familiarity with optimization methods; additional experience in areas such as causal inference or experimentation design is a plus
Proven ability to architect and deliver complex, production‑grade ML systems that operate at scale
Strong track record of nurturing DS/ML projects to maturity with significant business impact, including supporting and improving those systems beyond initial deployment
Mastery of probability and statistics, especially techniques that scale to massive datasets
Strong Python and SQL skills; experience with ML frameworks such as TensorFlow or PyTorch
Strong communication and presentation skills, including proficiency in conveying complex technical concepts to both technical and non‑technical audiences
Track record of cross‑team technical leadership and mentorship of senior data scientists and technical partners
Desired Characteristics
Experience developing, evaluating, or optimizing bidding algorithms for RTB environments.
Experience working with a cloud platform like GCP/AWS/Azure, with emphasis on GCP and the Vertex AI platform
Experience with ML pipeline and orchestration tools such as TFX, Kubeflow, or Airflow
Familiarity with other programming languages such as Java and Go
Experience working in digital media, marketing technology, or advertising technology — especially in marketplace, auction, or exchange systems
Track record of setting technical standards or best practices adopted beyond a single team
Experience representing data science capabilities or strategy in cross‑functional forums
$195,500 - $218,500 a year
OpenX is committed to equal employment opportunities. It is a fundamental principle at OpenX not to discriminate against employees or applicants for employment on any legally‑recognized basis including, but not limited to: age, race, creed, color, religion, national origin, sexual orientation, sex, disability, predisposing genetic characteristics, genetic information, military or veteran status, marital status, gender identity/transgender status, pregnancy, childbirth or related medical condition, and other protected characteristic as established by law.
Applicants can review our Applicant Privacy Policy at any time by visiting the following link: https://www.openx.com/privacy-center/applicant-privacy-policy/.
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  • New York, New York, United States

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