john deen
@johndeen
Detail-oriented data annotation specialist ensuring high-quality datasets for AI and ML projects.
United StatesWhat I'm looking for
I am a detail-oriented data annotation specialist with over 3 years of hands-on experience contributing to large-scale AI and machine learning projects. My work spans image, text, audio, and video annotation for computer vision, NLP, and video analytics.
I have maintained 97%+ accuracy through consistent QA, peer review, and close collaboration with engineers and project leads. I have contributed to over 150 annotation projects under tight deadlines and improved dataset reliability by identifying and addressing quality gaps.
My technical familiarity includes tools such as Labelbox, SuperAnnotate, CVAT, and Scale AI, and I have experience with audio segmentation, transcription, metadata tagging, and data validation. I have supported NLP and computer vision teams and documented data workflows to ensure annotation consistency.
I am authorized to work in the U.S., available to start immediately, and prefer remote roles where I can continue applying rigorous quality assurance and clear, agile communication to accelerate model performance.
Experience
Work history, roles, and key accomplishments
Data Annotation Specialist
Appen Technologies
Apr 2022 - Present (3 years 6 months)
Labeled diverse image, video, and text datasets to improve AI model accuracy, maintaining 97%+ QA accuracy and contributing to 150+ annotation projects under tight deadlines.
SAAnnotated large batches for machine learning datasets focusing on image categorization, text labeling, and video segmentation, and collaborated with QA to improve dataset reliability.
Data Entry & Labeling Assistant
Google via Adecco
Jun 2018 - Apr 2020 (1 year 10 months)
Supported NLP and computer vision teams with labeling and data cleanup, tested and documented annotation workflows, and identified data quality gaps to streamline turnaround.
Education
Degrees, certifications, and relevant coursework
UAUniversity of California, Los Angeles
Bachelor of Science, Information Systems
Completed a Bachelor of Science in Information Systems with coursework in Data Management, Human-Computer Interaction, and Applied Machine Learning.
Tech stack
Software and tools used professionally
Availability
Location
United StatesAuthorized to work in
Job categories
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