Applied Scientist — Computer Vision & Health Sensing
Independent research and consulting for consumer health-sensing clients — initially alongside a full-time role at Syngenta, then full-time from 2022 — owning the full scope of ML research, measurement methodology, and analytical infrastructure for each engagement.
- Led original research into computational quantification of physiological skin properties, developing novel metrics and deep learning systems to measure attributes — including radiance and tone — previously existing only as qualitative descriptors.
- Developed composite scoring systems quantifying skin radiance from multi-modal physiological features, validated against expert grading.
- Built a large-scale perceptual skin-tone classification system for a client, trained on a private database of 2M+ images using Vision Transformers.
- Developed a CNN-based anomaly detection system for large-scale clinical imaging databases, deployed via AWS SageMaker with automated dataset quality evaluation and a client-facing SDK.
- Designed and executed A/B testing and causal inference studies, owning protocol design and analysis to isolate causal effects of product features on user behavior.
- Worked with real-time capacitive sensor data capturing physiological skin states, building longitudinal profiling systems modeling individual baselines over time.
- Conducted customer segmentation and clustering using K-means, PCA, and UMAP to drive strategic product decisions.
- Performed statistical analysis and causal inference using SQL and Python (Pandas, scikit-learn, NumPy, SciPy).
- Utilized AWS Athena for large-scale dataset retrieval and processing; MongoDB/geoJSON for geolocation-based behavior analysis.
- Developed interactive dashboards (Plotly Dash, Tableau) to visualize trends for stakeholder decision-making.
- Defined and operationalized core product health metrics (engagement, retention, conversion).
- Communicated technical findings to clients and non-technical stakeholders, translating business needs into development priorities.