Jenny S.

Hi there! If you are looking for a highly precise, tech-savvy specialist to clean, structure, and optimize your data pipelines for machine learning models, you are in the right place. Backed by over 11 years of remote experience and certified in Google AI Essentials, I specialize in high-accuracy data annotation, computer vision labeling, and manual quality assurance. My workflows are optimized to ensure near-zero error rates on complex datasets and software testing workflows. Recent Project Highlights & Domain Expertise: Computer Vision & Video Object Tracking for Sports: Hands-on experience in video-level computer vision annotation for sports analytics. Specialized in frame-by-frame object tracking, ball positioning/trajectories, keyframe verification, and sub-pixel alignment for fast-paced match footage using custom web-based tools. Semantic Segmentation, Masking & Defect Labeling: Experienced in high-precision polygon masking, instance segmentation, and defect identification for AI quality control models—handling complex edge-case visuals, subtle surface defects, and detailed boundaries with strict accuracy. ML Data Categorization & High-Volume Data Entry: Proven experience managing heavy data entry pipelines for AI startups—combining fast, accurate data extraction with high-precision classification. Experienced in organizing structured data, cleaning transactional RFQ (Request for Quote) emails, logging material specifications, and categorizing construction/metal industry data into clean ML training datasets. Manual App QA Testing (Hands-On Experience & Eager to Learn): Possess hands-on experience in manual software testing—including executing basic test cases, observing synchronization behavior, and reporting bugs. I am enthusiastic about expanding my QA skillset and am very open to learning new testing frameworks and tools. Standard Tool Stack & Certifications: Certifications: Google AI Professional and Google AI Essentials Certified Tools: Fluent in industry-standard annotation platforms including Meta's Segment Anything Model (SAM), CVAT, Roboflow, Labelbox, spreadsheets/databases for data entry, custom browser-based labeling interfaces, and basic bug-tracking workflows. Complementary Operations & Support Skills: E-Commerce & Support: Upwork Skill Certified in Customer Service. Experienced with Shopify, Zendesk, Gorgias, and subscription tools focusing on customer care and retention. Project & Team Support: Skilled in structured coordination, tracking task progress, maintaining clear logs, and supporting overall team workflows to keep datasets and project tasks on schedule. Why Top AI & Tech Teams Work With Me: Data and quality are the backbone of great technology. I am a detail-oriented, proactive worker who strictly follows complex guidelines, handles edge cases with care ("flag over guess" policy), learns fast, and consistently delivers clean, structured ground-truth datasets ahead of schedule. Let’s connect and discuss how I can support your data labeling, data entry, or project workflows to help scale your project seamlessly!