Nicholus Wainaina

Key Skills

Software

Labelbox

CVAT

Scale AI

Supervisely

Remotasks

Appen

Telus

Clickworker

Toloka

iMerit

Top Subject Matter

Autonomous driving

Mapping Domain Expertise

general machine learning

Top Data Types

3D Sensor

Text

Image

Top Label Types

Cuboid

Transcription

Segmentation

Freelancer Overview

Data Annotation Specialist. Core strengths include Labelbox, CVAT, and Scale AI. Education includes Bachelor of Science, University of Nairobi (2015). AI-training focus includes data types such as 3D Sensor and Text and labeling workflows including Cuboid and Transcription.

Labeling Experience

Data Annotation Specialist

Appen3D SensorCuboidSegmentation

As a Data Annotation Specialist at Outlier/Appen/Abaka AI, I specialized in 2D and 3D LiDAR annotations for autonomous driving and mapping projects. My responsibilities included performing detailed image segmentation, conducting transcription and labeling tasks, and collaborating with data scientists to optimize annotation workflows. I maintained high accuracy through rigorous quality control and consistently delivered quality datasets for machine learning models. • Annotated 2D and 3D LiDAR data for mapping and autonomy. • Conducted detailed image segmentation for ML applications. • Performed transcription and labeling of diverse datasets. • Enhanced annotation quality by collaborating with engineering teams.

As a Data Annotation Specialist at Outlier/Appen/Abaka AI, I specialized in 2D and 3D LiDAR annotations for autonomous driving and mapping projects. My responsibilities included performing detailed image segmentation, conducting transcription and labeling tasks, and collaborating with data scientists to optimize annotation workflows. I maintained high accuracy through rigorous quality control and consistently delivered quality datasets for machine learning models. • Annotated 2D and 3D LiDAR data for mapping and autonomy. • Conducted detailed image segmentation for ML applications. • Performed transcription and labeling of diverse datasets. • Enhanced annotation quality by collaborating with engineering teams.

2025 - Present

Data Annotator

TolokaTextTranscription

Managed a range of data annotation projects including text, image, video, and audio labeling. Conducted data transcription to convert spoken language into written text for various applications. Ensured data quality and adherence to client guidelines across different platforms. • Met deadlines consistently while handling high-volume tasks and maintaining attention to detail. • Collaborated across multiple teams to meet project goals. • Applied strict quality controls on all submitted data. • Used diverse industry-standard platforms for annotation assignments.

Managed a range of data annotation projects including text, image, video, and audio labeling. Conducted data transcription to convert spoken language into written text for various applications. Ensured data quality and adherence to client guidelines across different platforms. • Met deadlines consistently while handling high-volume tasks and maintaining attention to detail. • Collaborated across multiple teams to meet project goals. • Applied strict quality controls on all submitted data. • Used diverse industry-standard platforms for annotation assignments.

2023 - 2025

Education

Work History