David S.

Key Skills

Software

CVAT

Labelbox

Remotasks

SuperAnnotate

Don't disclose

Top Subject Matter

Traffic scenes

vehicle and pedestrian detection

lane and signage recognition

Top Data Types

Image

3D Sensor

Top Task Types

Object Detection

Classification

Segmentation

Freelancer Overview

Data Annotator Specialist (dual image/text annotation and customer support) — We Are Oasis Outsourcing, Nairobi, Kenya. Core strengths include CVAT, Labelbox, and Super Annotate. Education includes Certificate of Digital Skills, Cloudfactory (2019) and Introduction to Artificial Intelligence Training, Samasource (2021). AI-training focus includes data types such as Image and 3D Sensor and labeling workflows including Object Detection, Classification, and Segmentation.

Labeling Experience

Data Annotator Specialist (dual image/text annotation and customer support) — We Are Oasis Outsourcing, Nairobi, Kenya

CVATImageObject Detection

Worked as a Data Annotator / Customer Support Representative handling image and text labeling for computer vision traffic scene projects. Ensured annotated outputs met project quality standards by reviewing for accuracy and clarity. Assisted with workflow improvements and maintained documentation for annotation and support operations. • Image annotation for traffic scenes • Text labeling and customer support coordination • Quality review/audit of labeled data • Workflow and best-practice documentation

2025 - Present

Data Annotation Specialist & Web Researcher — Cloudfactory (remote), Nairobi, Kenya

SuperAnnotateImageClassification

Performed data annotation for machine learning applications across multiple industries, focusing on image and text datasets. Used platforms like SuperAnnotate and internal tools for classification and object tagging tasks. Completed quality control participation through team reviews and feedback sessions to improve labeling accuracy and efficiency. • Image and text dataset annotation • Classification and object tagging • Quality control reviews and team feedback • Multi-industry labeling support

2020 - 2024

Data Annotation Specialist — Samasource (Sama AI), Nairobi, Kenya

CVATImageObject Detection

Labeled thousands of high-resolution automotive images for ADAS and autonomous driving applications. Annotated vehicles, pedestrians, traffic signs, and lane lines using CVAT and internal tools. Maintained a 97%+ accuracy rate through monthly quality audits and supported consistent labeling through collaboration and feedback. • Vehicle and pedestrian annotation • Traffic sign and lane line labeling • 97%+ accuracy on monthly audits • Review ambiguous cases with leads

2021 - 2023

Data Labeler / Annotator (part-time contractor) — Remotasks (Scale AI), remote

3D SensorSegmentation

Annotated images and LiDAR data to build computer vision datasets for early self-driving car prototypes. Performed bounding box, segmentation, and classification labeling for diverse objects in traffic scenes. Delivered high task consistency and met daily quotas while completing more than 2,000 annotation tasks. • LiDAR data labeling • Bounding box and segmentation tasks • Traffic-scene object labeling • High-consistency throughput against daily quotas

2015 - 2019

Education