We’re looking for a Senior Machine Learning Engineer to help build and scale the models and infrastructure behind a high-impact data platform used by a wide range of customers. You’ll work on end-to-end machine learning systems—from experimentation and model development to deployment, serving, and ongoing optimization. This is a hands-on role where you’ll collaborate closely with leadership and engineering teams to shape the future of the product.
Build and productionize ML models that directly power core product features
Design, maintain, and scale ML infrastructure including training pipelines, model serving, and monitoring
Run experiments and optimizations using A/B testing, uplift modeling, and causal inference methods
Collaborate cross-functionally with product and engineering, including direct work with senior leadership
Mentor teammates and help establish best practices across ML, data engineering, and experimentation
5+ years of software engineering experience, including 3+ years working on ML systems
Strong understanding of modern ML techniques (tree-based models, deep learning, transformers, etc.)
Hands-on experience with frameworks such as PyTorch, TensorFlow, or XGBoost
Experience with feature engineering using aggregations, embeddings, or auxiliary models
Experience designing ML pipelines and production-grade infrastructure
Familiarity with cloud platforms (GCP preferred but not required)
Comfort with CI/CD, Docker/Kubernetes, and distributed compute frameworks (Spark, Ray, Dask, etc.)
Proven track record iterating on models in production environments
Strong Python skills (numpy, pandas, etc.)
Experience with large-scale data processing (Spark, Ray, BigQuery, etc.)
Familiarity with workflow orchestration tools like Airflow
Comfort with advanced experimentation techniques and real-world performance evaluation
Understanding of observational data challenges and measurement frameworks
Comfortable owning projects end-to-end—from data exploration through deployment
Ability to communicate complex ML concepts clearly to technical and non-technical stakeholders
A self-starter who learns quickly and thrives in an iterative, fast-paced environment
Experience working with customer-facing or personalization-oriented ML systems
Background in causal inference or uplift modeling
Exposure to LLMs, modern AI tooling, or reinforcement learning
Advanced degree in a quantitative field
Experience in fast-moving or startup environments
Based in or near New York City (most of the team operates in EST)