# William Koehrsen > Senior Software Engineer at Grid Status Location: Washington, District of Columbia, United States Profile: https://flows.cv/williamkoehrsen Building Grid Status to make energy data accessible. Playing the infinite game. ## Work Experience ### Senior Software Engineer @ Grid Status Jan 2024 – Present | Washington DC-Baltimore Area ### Senior Machine Learning Engineer @ Cortex Sustainability Intelligence Jan 2021 – Jan 2024 | Washington, District of Columbia, United States • Responsible for developing and deploying end-to-end machine learning pipelines providing real-time recommendations to improve energy efficiency in commercial office buildings • Leader of software engineering team, which builds customer-facing features to deliver machine learning recommendations to building engineers in Desktop and mobile apps • Responsible for product team’s DevOps, including cloud deployments, database engineering, and infrastructure commissioning • Machine Learning Stack: PostgreSQL, Python, Heroku, AWS, Snowflake • Software engineering Stack: Ruby on Rails, React, JS, Heroku, Terraform ### Full-Stack Data Scientist @ Cortex Sustainability Intelligence Jan 2018 – Jan 2021 | Washington, District of Columbia, United States • Designed, developed, deployed, and monitored end-to-end machine learning systems • Built and deployed numerous customer-facing features to serve machine learning recs • Served millions of real-time recs for increasing building energy efficiency • Extensive experience with version control, databases, testing, cloud deployment, CI ### Data Scientist @ Feature Labs, Inc. Jan 2018 – Jan 2018 | Boston • Leading data scientist on team building automated data science tools and application • Developed custom data science pipelines to solve customer’s business problems • Built machine learning models for predicting loan repayment and engine failure • Contributed to open-source library, featuretools, for automated feature engineering ### Data Science Writer @ Towards Data Science Jan 2017 – Jan 2018 • Data Science and Machine Learning writer with 500,000 monthly readers ### Data Scientist Intern @ Pratt & Whitney Jan 2018 – Jan 2018 | Hartford, Connecticut Area Developed a system for analyzing and visualizing military engine inventory forecasts and realized amounts. Worked with SQL for data ingestion/management, Python for data retrieval/analysis, and Qlik for visualization dashboard. Experience working with entire data analysis pipeline from ingestion to final presentation. ### Data Science Research Assistant @ Case Western Reserve University Jan 2017 – Jan 2018 | Cleveland/Akron, Ohio Area • Core developer on EDIFES project using data analytics to improve building energy efficiency • Built Python/R libraries for cleaning, analyzing, visualizing, and modeling/predicting energy data • Used numerous tools in the data science ecosystem: Hadoop, SQL, Python, R, cloud services • Experience working on a software / data science development team in a research environment ### Guidance, Control, and Mission Analysis Intern @ NASA - National Aeronautics and Space Administration Jan 2017 – Jan 2017 | Marshall Space Flight Center • Worked on guidance, control, and mission analysis for NEA Scout satellite launching on EM-1 • Responsible for validation of Attitude Control Matlab/Simulink model and hardware/sensors tests • Developed scripts to model mission concept of operations in MATLAB and Python ### Aerospace Engineer Intern @ Air Force Research Laboratory Jan 2016 – Jan 2016 | Kirtland Air Force Base Studied Computational Fluid Dynamics and ran various tests cases in CFD++ and OpenFOAM Designed and modeled experimental apparatus and models in Solidworks CAD software. Wrote MATLAB code to analyze experimental results. ## Education ### Bachelor’s Degree in Mechanical Engineering Case Western Reserve University Jan 2014 – Jan 2018 ### Master of Science - MS in Computer Science Georgia Institute of Technology Jan 2019 – Jan 2022 ### Data Analyst Nanodegree Udacity Jan 2017 – Jan 2017 ### Machine Learning Engineer Nanodegree Udacity Jan 2017 – Jan 2017 ### Deep Learning Specialization Coursera ### Machine Learning Specialization Coursera ### High School Diploma in High School/Secondary Diplomas and Certificates Metamora Township High School Jan 2010 – Jan 2014 ### Master of Science - MS in Computer Science Georgia Institute of Technology Jan 2020 – Jan 2023 ## Contact & Social - LinkedIn: https://linkedin.com/in/william-koehrsen-48a643a5 - Website: https://willkoehrsen.github.io/ --- Source: https://flows.cv/williamkoehrsen JSON Resume: https://flows.cv/williamkoehrsen/resume.json Last updated: 2026-03-22