- Company Name
- Lyft
- Job Title
- Senior Data Scientist, Algorithms - Lyft Ads
- Job Description
-
**Job Title**: Senior Data Scientist, Algorithms
**Role Summary**: Lead development of next-generation ad relevance, targeting, optimization, and measurement algorithms for Lyft Ads platform using large-scale ML and AI systems.
**Expectations**: High-impact, technical role requiring strong applied ML expertise, hands-on modeling, and production software engineering skills. Own end-to-end ML systems from prototyping to deployment, balancing scientific rigor with practical engineering constraints.
**Key Responsibilities**:
- Design, prototype, and deploy production-grade ML models for ad relevance, targeting, pacing, conversion prediction, and measurement.
- Define modeling strategies and roadmaps aligned with revenue and ad performance goals.
- Architect scalable ML systems (feature stores, training pipelines, online scoring) with engineering partners.
- Diagnose and resolve systemic issues (drift, feedback loops, auction inefficiencies) to improve model performance and advertiser ROI.
- Develop robust evaluation frameworks using metrics, counterfactual methods, and A/B testing.
- Drive innovation via techniques in ranking, reinforcement learning, causal inference, or graph ML.
- Build reusable ML infrastructure and mentor junior teams.
- Align algorithmic solutions with business priorities and platform constraints.
**Required Skills**:
- Advanced proficiency in Python, ML frameworks (PyTorch, TensorFlow), and distributed systems (Spark, Snowflake).
- Expertise in ranking/relevance modeling, CTR/CVR prediction, optimization algorithms, and auction/marketplace systems.
- Proven experience in production ML system design, model governance, and large-scale deployment.
- Strong understanding of causal inference, experimentation, and real-time decision systems.
**Required Education & Certifications**:
- Master’s or PhD in Machine Learning, CS, Statistics, Engineering, Applied Math, or related field.
- 5+ years applied ML/Data Science with demonstrated production model deployment and business impact.
- Demonstrated cross-functional collaboration (engineering/product/sales) in ambiguous problem-solving contexts.
San francisco county, United states
Hybrid
Senior
31-12-2025