Johannan Jo Hjersman
Head of Data @The Commons XR
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WORK HISTORY
Head of Data @The Commons XR
San Diego, CA, US
Oversees all aspects of data from dictating source datagrams, ingesting to analytics, outputting to visualization, logging, internal metrics and classical AI and LLM outputs- Trains, fine-tunes, feature engineers, deploys, and scales classical and LLM models using classification, clustering, anomaly detection, and prompt engineering with RAG, requiring ingestion and preprocessing of 100s GB of data- Investigated a critical data infrastructure bottleneck and implemented a company-wide data solution, reducing costs in data storage, ETL, and AI by over 50%.[Article on this migration here.](https://tinyurl.com/Pipeline-Migration)- Migrated and updated the entire cloud infrastructure including design, pipelines, orchestration, and other data needs from Azure to GCP, with total rollout time taking less than 2 months with critical processes requiring minimal downtime- Researches state-of-the-art ML methods and applied them to novel problems in healthcare and other domains, leading to publications and patents.
EDUCATION
University of California, Davis
Bachelor of Science - BS, Applied Mathematics and Computer Science
ABOUT JOHANNAN JO HJERSMAN
Data professional with 8 years of experience in data analytics and 5 years in a fast-paced tech environment. Proven ability to problem solve and derive successful data-driven solutions. Experience leveraging Python with data science and machine learning libraries, cloud infrastructure, and data design, manipulation, and pipelines. Currently the head of data at The Commons XR, a Healthcare Startup using immersive technology to extract insights through behavioral analytics. Concurrently mentored for an advanced data engineering bootcamp, data science bootcamps with The University of California system, and other engineers both internally and externally. I have given multiple talks on this subject. I\'m always open to connecting with professionals who are passionate about leveraging data to drive business decisions. Let\'s connect!
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