Phillip Afa
@phillipafa
Detail-obsessed AI training specialist delivering high-accuracy data and LLM evaluations.
What I'm looking for
I’m a detail-obsessed AI training specialist focused on high-throughput, quality-first data annotation for modern AI systems. Over 6+ years, I’ve delivered 43,000+ tasks with industry-leading accuracy, including 96.5% peak approval accuracy on MTurk.
My work spans multi-modal annotation—text, image, audio, and video—plus structured LLM evaluation and AI response rating/ranking. I contribute to RLHF-adjacent feedback pipelines by producing structured human preference signals that support model training, refinement, and quality benchmarking.
I bring domain depth from medical sciences, biological sciences, creative writing, and marketing, which helps me label and evaluate with consistency and context. I’m available remotely for AI training companies seeking reliable annotation professionals who can maintain accuracy across large-scale batches.
Experience
Work history, roles, and key accomplishments
Annotator & Image Labeling
Toloka AI (Yandex)
Jan 2023 - Present (3 years 3 months)
Supported computer vision image classification and labeling projects while completing ~94 tasks with ~92% accuracy. Also performed audio transcription and text annotation, applying judgment to edge cases to provide high-quality signals for AI training datasets.
Data Annotator
Oneforma (Premise Data)
Jan 2023 - Present (3 years 3 months)
Contributed to ongoing text, image, and audio/multimodal annotation pipelines with ~92% accuracy across ~94 tasks by following project-specific guidelines. Worked on NER tagging, sentiment classification, audio transcription, and image labeling within structured QA frameworks to maintain annotation integrity.
HIT Specialist
Amazon Mechanical Turk (MTurk)
Jan 2016 - Present (10 years 3 months)
Completed 28,000+ HITs with 96.5% approval accuracy, performing AI response rating and ranking to support LLM output evaluation. Also contributed audio transcription and AI image generation evaluation, providing structured preference signals for RLHF-adjacent feedback pipelines.
Data Annotator
Clickworker / UHRS Platform
Jan 2019 - Jul 2020 (1 year 6 months)
Submitted and received approval for 15,000+ annotation tasks across diverse AI training datasets, including multi-modal labeling and classification. Performed bounding box annotation, NER, sentiment tagging, and audio transcription while rating and ranking AI-generated responses for RLHF data collection workflows.
Education
Degrees, certifications, and relevant coursework
University of Uyo
Bachelor of Science, Fisheries & Aquatic Management
Earned a Bachelor of Science in Fisheries & Aquatic Management. Relevant biological sciences training supports medical, veterinary, and scientific domain annotation work.
EF SET (EF Standard English Test)
English Certificate (EF SET), English Language Proficiency
Completed the EF SET English test certificate, validating English proficiency for annotation and evaluation tasks.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Social media
Job categories
Skills
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