Note: The job is a remote job and is open to candidates in USA. OpenX develops digital advertising markets and technologies that help digital media companies, publishers, and advertisers maximize value. The Data Scientist III owns medium-to-large data science projects end-to-end, developing and deploying production models and analyses for marketplace problems. The role partners with product and engineering, leads experimentation and validation, mentors junior scientists, and influences technical decisions.
Responsibilities
- Own the end-to-end data science lifecycle for moderately complex models and significant project components — spanning data ingestion, feature engineering, modeling, validation, deployment, monitoring, and retraining
- Apply expertise across several core areas of machine learning and statistics (e.g., gradient-boosted models, deep neural networks, time series, causal inference concepts, experimentation design), selecting appropriate methods for complex data science problems
- Write efficient, modular, well-tested code for data processing, feature engineering, and model training/inference, leveraging distributed tooling (e.g., Vertex AI pipelines, Dataflow, BigQuery) where appropriate
- Design and implement robust validation frameworks for complex experiments and models, accounting for potential biases and real-world performance
- Troubleshoot complex model performance issues, data anomalies, and code bugs effectively with little guidance
- Define analytical approaches and scope data science projects for moderately complex or ambiguous business problems
- Partner with product managers and stakeholders to define success metrics and experiment goals, and to translate marketplace problems into data science solutions
- Lead the design and analysis of experiments (e.g., A/B tests, switchback) for your projects, and interpret complex model results and experimental outcomes with a focus on actionable insights and business outcomes
- Proactively identify opportunities within your domain where data science can provide significant value, and initiate exploration
- Follow and help improve established team processes for coding standards, documentation, reproducibility, and experimentation
- Mentor DS I and DS II scientists, providing technical guidance, reviewing code, analyses, and models, and supporting their growth in analytical and modeling skills
- Influence technical decisions within the team regarding modeling choices, validation strategies, and tooling through well-reasoned arguments and expertise
- Drive improvements to team standards, data science best practices, and analytical rigor; take ownership of specific team practices or technical components (e.g., a feature store component, leading experimentation reviews)
- Educate stakeholders on the capabilities and limitations of data science models, and clearly explain complex methodologies and findings to both technical and non-technical audiences
- Participate actively in recruiting, providing high-quality, graded interview feedback for candidates up to this level
Skills
- B.S. or M.S. in Data Science, Machine Learning, Computer Science, Physics, Mathematics, Operations Research, or a related technical field with 5+ years of relevant industry experience; OR a Ph.D. in a related field with 2+ years of relevant experience
- Demonstrated ability to independently own the full data science lifecycle from problem formulation and feature engineering through model deployment, monitoring, and ongoing maintenance
- Solid expertise in several core areas of machine learning and/or statistics (e.g., gradient-boosted models, deep neural networks, time series, causal inference, experimentation design), with the judgment to select appropriate methods for complex problems
- Strong foundation in probability and statistics, including techniques that scale to large datasets
- Experience designing and analyzing experiments (e.g., A/B testing) and building robust model and experiment validation frameworks
- Strong Python and SQL skills; experience with ML frameworks such as TensorFlow or PyTorch
- Ability to write efficient, modular, well-tested code and to collaborate with engineering to move models and analyses into production
- Strong communication skills, including the ability to convey complex technical concepts to both technical and non-technical audiences
- Experience developing, evaluating, or optimizing models or 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
- Experience supporting and improving production ML models beyond their initial deployment
- Experience mentoring junior data scientists
Benefits
- Bonus
- Equity
- Medical benefits
- Dental benefits
- Vision benefits
- 401k
Company Overview
Company H1B Sponsorship