owen omwenga

I am a detail-oriented data specialist with hands-on experience annotating and labeling text, image, audio, and video datasets to improve AI training and model performance. I use Python, SQL, and advanced Excel to clean, preprocess, and visualize data, delivering reliable, production-ready datasets.

As a freelance data analyst and former Remotasks annotator, I consistently met quality benchmarks—achieving over 95% accuracy on large-scale labeling tasks—and performed pairwise comparisons and QA to strengthen model selection and reliability. I also conducted regression and time-series analyses to extract actionable insights for forecasting and strategy.

Earlier, I co-founded and instructed at a computer college where I designed data literacy curricula and practical workflows that aligned student projects with professional standards. I thrive in remote, flexible environments and focus on accuracy, reproducibility, and scalable data pipelines.