Lonwabo Mcobothi
@lonwabomcobothi
Detail-oriented data annotator delivering high-accuracy labeling for NLP and computer vision projects.
South AfricaWhat I'm looking for
I am a detail-oriented data annotator with hands-on experience delivering image, video, and text annotations for NLP and computer vision projects. I consistently maintained above 95% accuracy, achieving 98%+ at AI Data Labs while collaborating closely with AI engineers.
My background includes roles as a junior annotator and IT support assistant where I contributed to improved chatbot response accuracy (+15%), reduced annotation errors (-12%), and faster data processing (+20%) through workflow improvements. I am versed in quality assurance, data cleaning, metadata organization, and labeling across multiple modalities.
I bring adaptability, strong teamwork, and a commitment to continuous growth in tech-driven environments. I look for opportunities where precision, collaboration, and impact on model performance are valued.
Experience
Work history, roles, and key accomplishments
Data Annotator
AI Data Labs
Jan 2023 - Dec 2024 (1 year 11 months)
Delivered image, video, and text annotations with 98%+ accuracy and partnered with AI teams on NLP and computer vision training datasets, suggesting improvements that reduced annotation errors by 12%.
Junior Data Annotator
DataTech Solutions
Jan 2021 - Dec 2022 (1 year 11 months)
Assisted on multiple annotation projects achieving 95% accuracy, performing text classification, sentiment labeling, and object detection, and contributed to a project that improved chatbot response accuracy by 15%.
IT Support & Data Assistant
Digital Insights
Jan 2019 - Dec 2021 (2 years 11 months)
Supported IT systems and assisted with database management, performed data cleaning, tagging, and metadata organization, and improved data processing turnaround time by 20% through workflow adjustments.
Education
Degrees, certifications, and relevant coursework
Berea College of Technology
IT Studies, Information Technology
2023 - 2023
Completed one year of IT studies focused on foundational information technology topics in 2023.
Sithengile Secondary School
Matric (NQF Level 4), General Secondary Education
Completed Matric certified at NQF Level 4 providing general secondary education qualifications.
Tech stack
Software and tools used professionally
Availability
Location
South AfricaAuthorized to work in
Job categories
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