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J

Jackson Kamanja

Freelance Data Annotator & Transcriptionist

Kenya flagNairobi, Kenya
$4.00/hrExpertOther

Key Skills

Software

Other

Top Subject Matter

Speech Recognition
Multilingual Audio Data
Survey Data

Top Data Types

AudioAudio
TextText
DocumentDocument

Top Task Types

Transcription
Classification
Bounding Box
Polygon
Segmentation
Cuboid
Data Collection

Freelancer Overview

Freelance Data Annotator & Transcriptionist. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor of Science, Kenyatta University (2024) and Kenya Certificate of Secondary Education, Ichagaki Secondary School (2019). AI-training focus includes data types such as Audio and Text and labeling workflows including Transcription and Classification.

ExpertEnglishSwahili

Labeling Experience

Freelance Data Annotator & Transcriptionist

OtherAudioTranscription
As a Freelance Data Annotator & Transcriptionist, I was responsible for annotating and transcribing audio datasets in Swahili and English for structured use. I labeled, reviewed, and corrected text and audio data to enhance the accuracy and quality of machine learning models. I adhered strictly to comprehensive annotation guidelines and consistently met project deadlines. • Annotated and transcribed diverse audio inputs, including accents and background noise • Ensured consistency and resolved labeling errors in large datasets • Maintained high quality of annotation output under tight timelines • Enhanced machine learning model accuracy through detailed labeling work

As a Freelance Data Annotator & Transcriptionist, I was responsible for annotating and transcribing audio datasets in Swahili and English for structured use. I labeled, reviewed, and corrected text and audio data to enhance the accuracy and quality of machine learning models. I adhered strictly to comprehensive annotation guidelines and consistently met project deadlines. • Annotated and transcribed diverse audio inputs, including accents and background noise • Ensured consistency and resolved labeling errors in large datasets • Maintained high quality of annotation output under tight timelines • Enhanced machine learning model accuracy through detailed labeling work

2022 - Present

Youth Survey Enumerator – Kasi Insight

OtherTextClassification
In my position as a Youth Survey Enumerator at Kasi Insight, I collected, labeled, and validated structured and unstructured textual data. I maintained high standards in data consistency and quality across multilingual datasets and ensured accurate recording. My attention to detail resulted in minimal error rates even with large data volumes. • Labeled and validated structured and unstructured text responses • Interpreted responses in Swahili and English for correct annotation • Upheld annotation guidelines ensuring dataset integrity • Focused on minimizing errors while handling complex data entries

In my position as a Youth Survey Enumerator at Kasi Insight, I collected, labeled, and validated structured and unstructured textual data. I maintained high standards in data consistency and quality across multilingual datasets and ensured accurate recording. My attention to detail resulted in minimal error rates even with large data volumes. • Labeled and validated structured and unstructured text responses • Interpreted responses in Swahili and English for correct annotation • Upheld annotation guidelines ensuring dataset integrity • Focused on minimizing errors while handling complex data entries

2024 - 2025

Education

K

Kenyatta University

Bachelor of Science, Aerospace Engineering

Bachelor of Science
2020 - 2024
I

Ichagaki Secondary School

Kenya Certificate of Secondary Education, General Secondary Education

Kenya Certificate of Secondary Education
2016 - 2019

Work History

K

Kasi Insight

Youth Survey Enumerator

Nairobi
2024 - Present