Sofie Holst Email & Phone Number

United States

I am responsible for managing complex projects, from conceptualization through implementation, and I collaborate closely with cross-functional teams to integrate data solutions that enhance operational efficiency and deliver actionable insights. My focus is on developing cutting-edge models and algorithms that address key business challenges, optimizing.

We are a small team tackling the absolutely massive mortgage market. We're bringing modern, elegant software to a field that still relies on fax machines and manila envelopes. We bring security, efficiency, and joy to a paper-based pillar of the US economy.

• Played a critical role in developing OCR and recommendation capabilities for Pearson’s Aida Calculus tutoring app
• Led a project team that successfully generated data for, trained, and readied a model (CNN+LSTM) for production that translates pictures of math expressions to latex, resulting in up to 170% accuracy gain over the.
• Led a project team that developed a math problem recommendation system with the goal of implementing the prototype into the Aida calculus app as a ""try a similar problem"" feature
• Wrote Python code used in production for image preprocessing, increasing model accuracy
• Optimized and tuned non-maximal suppression algorithm for object detection in Tensorflow
• Wrote production-level code in Python for data pipelines using Google Cloud Platform

• Charge Me Up: Understanding and Predicting Battery Charge in Smart Lock Devices
• Consulted for tech start-up Zego to identify failing batteries in advance. Predicted battery charge with a linear regression model in Python using SciKit-learn. Utilized a train/test split validation with results of.
• Queried data from PostgreSQL and InfluxDB to engineer features from over 11 million data points to assess factors that affect battery life.
• Delivered actionable insights through exploratory analyses that quantified how lock type and hub connectivity affect battery life, increasing savings and optimizing services.