John Mburu
Nairobi
Summary
Results-driven AI Data Annotation Specialist with proven expertise at Sama in delivering high-quality data labeling and annotation accuracy. Skilled in using advanced annotation tools and ensuring meticulous quality control. Adept at handling diverse data types while demonstrating strong attention to detail and effective communication skills.
Overview
6
6
years of professional experience
Work History
AI Data Annotation Specialist
Sama
Nairobi
01.2021 - 03.2025
- Data Labeling – Tagging images, text, audio, or video with relevant labels based on given guidelines.
- Annotation Accuracy – Ensuring precise and consistent annotations to improve AI model performance.
- Using Annotation Tools – Working with software and platforms like Labelbox, CVAT, or proprietary annotation tools.
- Following Annotation Guidelines – Adhering to project-specific rules and standards for consistent labeling.
- Quality Control & Review – Checking and refining annotations to minimize errors and maintain high data quality.
- Handling Different Data Types – Annotating various data formats, such as bounding boxes in images, sentiment tags in text,speech labels in audio.
Transcriptionist
REV
Nairobi
02.2019 - 11.2020
- Listening and Typing – Carefully listening to audio recordings and transcribing them into text with high accuracy.
- Proofreading and Editing – Reviewing transcriptions for spelling, grammar, and punctuation errors.
- Formatting Documents – Ensuring that transcripts follow specific formatting guidelines as required by the client or organization.
- Time Stamping (if required) – Adding time codes to transcripts, especially for legal or media transcription.
- Identifying Speakers – Differentiating between speakers in a conversation and labeling them correctly.
- Researching Terminology – Looking up technical terms, jargon, or industry-specific language for accurate transcription.
Education
Web Design
Aviation College
Nairobi,Kenya12-2022
Associate of Applied Science - Computer Engineering
MT.Kenya University
Nairobi,Kenya12-2015
Skills
- Data labeling
- Annotation accuracy
- Using annotation tools
- Quality control
- Handling data types
- Transcription accuracy
Timeline
AI Data Annotation Specialist
Sama
01.2021 - 03.2025
Transcriptionist
REV
02.2019 - 11.2020
Web Design
Aviation College
Associate of Applied Science - Computer Engineering
MT.Kenya University
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