Oluwadahunsi O.

Key Skills

Software

Appen

Top Subject Matter

AI model training dataset annotation

Multimodal dataset labeling for machine learning

Data Annotator at Outlier

Top Data Types

Image

Video

Top Task Types

Object Detection

Segmentation

Freelancer Overview

Data Annotator at Appen (01/04/2025 to 25/03/2026). Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Appen and Outlier AI. Education includes Bachelor of Science, Olabisi Onabanjo University (2020) and Senior Secondary Certificate Examination (SSCE), Ijebu-Ode Grammar School (2015). AI-training focus includes data types such as Image and Video and labeling workflows including Object Detection and Segmentation.

Labeling Experience

Data Annotator at Outlier AI (15/12/2025 to Present)

VideoSegmentation

Labeled and annotated large-scale multimodal datasets (image, video, audio, and text) for machine learning model training. Applied strict quality-control and annotation guidelines to ensure high data accuracy and consistency. Performed data segmentation and time-stamped clipping to isolate relevant features for model optimization. • Annotated and clipped image/video/audio/text datasets for ML training • Followed quality control guidelines to maintain label consistency • Performed segmentation and time-stamped clipping to capture relevant events • Completed time-sensitive tasks efficiently in a remote environment

2025 - Present

Data Annotator at Appen (01/04/2025 to 25/03/2026)

AppenImageObject Detection

Annotated and structured datasets to support AI model training, maintaining precision and consistency across tasks. Labeled large-scale data using object tagging and bounding box style annotations following provided project guidelines. Ensured the resulting dataset met accuracy and consistency requirements for downstream model optimization. • Performed object tagging and bounding box annotation for training data • Labeled large-scale image, text, and structured data sets • Followed detailed labeling instructions to keep outputs consistent • Collaborated with internal teams to refine the annotation process and improve dataset performance

2025 - 2026

Education

Work History