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S

Spencer Pirdai

Online Freelancer – Data Labeling and Annotation

KENYA flag
Nairobi, Kenya
$25.00/hrExpertTolokaAppenClickworker

Key Skills

Software

TolokaToloka
AppenAppen
ClickworkerClickworker

Top Subject Matter

General AI/Crowdsourced Data Annotation
Image and video labelling
Audio Transcription

Top Data Types

ImageImage
TextText
AudioAudio

Top Task Types

Bounding Box
Classification
Text Generation
Object Detection
Text Summarization
Transcription

Freelancer Overview

Online Freelancer – AI-training focus which includes data types such as Image and labeling workflows including Bounding Box, data annotation, video annotation. A. Data Labeling and Annotation. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Worked on sites such as Toloka, UHRS, Appen, Microworker, etc. B. Recently worked on Video annotation on sites such as Atlas capture

ExpertEnglishSwahili

Labeling Experience

Video annotation

VideoSegmentation
The project involves checking already uploaded first person videos of humans performing tasks with their hands. I was tasked with labelling/annotation of different segments i.e the actions being done by the persona's hands.

The project involves checking already uploaded first person videos of humans performing tasks with their hands. I was tasked with labelling/annotation of different segments i.e the actions being done by the persona's hands.

2026 - Present
Toloka

Online Freelancer – Data Labeling and Annotation

TolokaImageBounding Box
I performed data labeling tasks as an online freelancer, focusing on image annotation, search relevance, video annotation, and text annotation. I worked across various crowdsourcing platforms, ensuring strict attention to detail in all assignments. My responsibilities included annotating images, classifying text, checking video content for relevance, and collecting data from diverse sources. • Labeled images using bounding boxes for AI model training. • Reviewed and annotated videos for action or relevance tasks. • Conducted text annotation for search and relevancy projects. • Utilized several crowdsourcing platforms to collect and label diverse data sets.

I performed data labeling tasks as an online freelancer, focusing on image annotation, search relevance, video annotation, and text annotation. I worked across various crowdsourcing platforms, ensuring strict attention to detail in all assignments. My responsibilities included annotating images, classifying text, checking video content for relevance, and collecting data from diverse sources. • Labeled images using bounding boxes for AI model training. • Reviewed and annotated videos for action or relevance tasks. • Conducted text annotation for search and relevancy projects. • Utilized several crowdsourcing platforms to collect and label diverse data sets.

2023 - Present

UHRS Data annotation

TextClassification
The project consisted of several tasks aimed at judging the relevance of browser search results to user queries. e.g filtering out sensitive content, checking whether information on a business e.g. address, operating hours is correct by verifying against a trusted reference source

The project consisted of several tasks aimed at judging the relevance of browser search results to user queries. e.g filtering out sensitive content, checking whether information on a business e.g. address, operating hours is correct by verifying against a trusted reference source

2023 - 2024

Education

J

Jomo Kenyatta University of Agriculture and Technology

Bachelor of Science, Quantity Surveying

Bachelor of Science
2019 - 2025
A

Alliance High School

Kenya Certificate of Secondary Education, General Secondary Education

Kenya Certificate of Secondary Education
2014 - 2017

Work History

S

State Department of Public Works

Quantity Surveying Intern

Nairobi
2023 - 2024
D

Dinesh Construction Company

Quantity Surveying Intern

Nairobi
2022 - 2022