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Felix Ochanjo

Felix Ochanjo

AI Data Annotator - Language Model Training

KENYA flag
Nairobi, Kenya
$8.00/hrExpertScale AILabelbox

Key Skills

Software

Scale AIScale AI
LabelboxLabelbox

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
Computer Code ProgrammingComputer Code Programming
DocumentDocument
ImageImage
TextText
VideoVideo

Top Label Types

Action Recognition
Audio Recording
Classification
Computer Programming Coding
Cuboid
Data Collection
Emotion Recognition
Fine Tuning
Question Answering
RLHF
Transcription

Freelancer Overview

I am a detail-oriented AI data and language model trainer with hands-on experience in annotating, labeling, and curating high-quality datasets for natural language processing and speech recognition projects. My work with global platforms like Scale AI, Remotasks, and Appen has involved text and audio data annotation, transcription, data cleaning, and rigorous quality assurance, ensuring that AI models receive accurate and reliable training data. I am proficient in Python and familiar with leading labeling tools and platforms, excelling in tasks that require linguistic expertise, grammar analysis, and data preprocessing. My background in software engineering and my passion for AI innovations drive me to deliver precise, well-structured datasets that support the development of advanced language and speech technologies.

ExpertEnglishSpanish

Labeling Experience

Labelbox

Freelance Video & Image Annotator

LabelboxImageBounding Box
Labeled video clips and image datasets for research and AI training projects using specialized annotation tools. Created bounding boxes, segmentation masks, and keypoint annotations for various computer vision tasks to improve model accuracy. Verified data integrity, corrected mislabeled samples, and maintained consistency in high-volume labeling tasks. • Used tools such as Labelbox, SuperAnnotate, and CVAT • Ensured strict adherence to quality protocols • Developed a strong eye for detail and pattern recognition • Delivered work under tight deadlines for clients

Labeled video clips and image datasets for research and AI training projects using specialized annotation tools. Created bounding boxes, segmentation masks, and keypoint annotations for various computer vision tasks to improve model accuracy. Verified data integrity, corrected mislabeled samples, and maintained consistency in high-volume labeling tasks. • Used tools such as Labelbox, SuperAnnotate, and CVAT • Ensured strict adherence to quality protocols • Developed a strong eye for detail and pattern recognition • Delivered work under tight deadlines for clients

2022
Scale AI

AI Data Evaluator – Scale AI

Scale AITextEvaluation Rating
Evaluated and annotated complex datasets including text, image, and short video tasks to support large AI model training. Assessed AI-generated outputs for accuracy, visual coherence, and context alignment. Conducted in-depth frame-by-frame video content reviews for object recognition task errors. • Provided detailed feedback on visual content • Maintained labeling accuracy above 98% • Contributed to refining annotation guidelines • Standardized annotation and review processes

Evaluated and annotated complex datasets including text, image, and short video tasks to support large AI model training. Assessed AI-generated outputs for accuracy, visual coherence, and context alignment. Conducted in-depth frame-by-frame video content reviews for object recognition task errors. • Provided detailed feedback on visual content • Maintained labeling accuracy above 98% • Contributed to refining annotation guidelines • Standardized annotation and review processes

2023 - 2024

Education

I

IBM

certificate, Cybersecurity

certificate
2025 - 2025
K

Kisii University Main Campus

Bachelor of Science, Software Engineering

Bachelor of Science
2020 - 2024

Work History

T

Turing

AI content creator

San Fransisco
2025 - Present
L

Laikipia University

Software Engineer Intern

Nairobi
2024 - 2024