Tiffany Nyambura

Key Skills

Software

Appen

Labelbox

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Image

Top Task Types

Transcription

Bounding Box

Segmentation

Classification

Object Detection

Freelancer Overview

Detail-oriented AI Trainer and Data Annotator with hands-on experience labeling and categorizing image, video, and audio datasets. Skilled in transcription, data quality control, guideline adherence, and delivering accurate annotations to support machine learning model performance.

Labeling Experience

Image Annotation for Computer Vision Model Training

LabelboxImageBounding BoxSegmentation

Contributed to computer vision projects by annotating image datasets using bounding boxes, classification, and segmentation techniques. Labeled objects, scenes, and attributes to support object detection and image recognition models. Ensured precise annotation by following detailed project guidelines, maintaining consistency across datasets, and conducting quality checks to meet accuracy standards required for AI model training.

Contributed to computer vision projects by annotating image datasets using bounding boxes, classification, and segmentation techniques. Labeled objects, scenes, and attributes to support object detection and image recognition models. Ensured precise annotation by following detailed project guidelines, maintaining consistency across datasets, and conducting quality checks to meet accuracy standards required for AI model training.

2025 - 2025

Audio Transcription & Annotation for Speech AI Training

AppenAudioTranscription

Worked on speech AI training projects by accurately transcribing audio recordings into text. Tasks included speaker identification, timestamp alignment, noise handling, and ensuring grammatical accuracy while preserving original speech meaning. Maintained strict adherence to project guidelines and quality standards to ensure high-accuracy datasets for training and improving speech recognition and conversational AI systems.

Worked on speech AI training projects by accurately transcribing audio recordings into text. Tasks included speaker identification, timestamp alignment, noise handling, and ensuring grammatical accuracy while preserving original speech meaning. Maintained strict adherence to project guidelines and quality standards to ensure high-accuracy datasets for training and improving speech recognition and conversational AI systems.

2024 - 2025

Education

Work History