Williams Tiffany

Key Skills

Software

Label Studio

Other

Top Subject Matter

Speech Recognition

Nlp Domain Expertise

Education Domain Expertise

Top Data Types

Audio

3D Sensor

Top Task Types

Transcription

Segmentation

Freelancer Overview

Data Annotation Specialist, Ello Technology. Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Label Studio and Other. Education includes Bachelor of Arts, The Catholic University of Eastern Africa (2021) and Kenya Certificate of Secondary Education, Ramba Boys High School (2020). AI-training focus includes data types such as Audio and 3D Sensor and labeling workflows including Transcription and Segmentation.

Labeling Experience

Data Annotation Specialist, Ello Technology

Label StudioAudioTranscription

As a Data Annotation Specialist at Ello Technology, I annotated child speech audio data for developing early education speech recognition models. My responsibilities included transcribing, tagging, and performing quality control on thousands of audio samples for NLP and AI perception projects. I also generated time-based labels for YouTube audio segments and reviewed transcriptions to ensure high accuracy. • Conducted pronunciation evaluation and target word identification in children's reading audio. • Utilized Chisel and Label Studio for speech and transcription annotation. • Collaborated with engineering and QA teams to maintain annotation quality standards. • Supported the creation of high-quality speech datasets for classifier evaluation.

As a Data Annotation Specialist at Ello Technology, I annotated child speech audio data for developing early education speech recognition models. My responsibilities included transcribing, tagging, and performing quality control on thousands of audio samples for NLP and AI perception projects. I also generated time-based labels for YouTube audio segments and reviewed transcriptions to ensure high accuracy. • Conducted pronunciation evaluation and target word identification in children's reading audio. • Utilized Chisel and Label Studio for speech and transcription annotation. • Collaborated with engineering and QA teams to maintain annotation quality standards. • Supported the creation of high-quality speech datasets for classifier evaluation.

2022 - Present

LiDAR Point Cloud Annotation Specialist, Avala AI

Other3D SensorSegmentation

As a LiDAR Point Cloud Annotation Specialist at Avala AI, I annotated and segmented 3D LiDAR point cloud data for autonomous driving model training. My work involved performing object detection, classification, and multi-frame sequence labeling using professional 3D annotation tools. I contributed to a 4-week annotation sprint to deliver high-quality training data for autonomous vehicle algorithms. • Executed object clustering and point cloud segmentation for diverse urban objects. • Ensured accuracy and consistency across multiple annotation workflows. • Applied bounding box and segmentation protocols tailored for 3D datasets. • Facilitated thorough QA reviews and accuracy validation of labeled data.

As a LiDAR Point Cloud Annotation Specialist at Avala AI, I annotated and segmented 3D LiDAR point cloud data for autonomous driving model training. My work involved performing object detection, classification, and multi-frame sequence labeling using professional 3D annotation tools. I contributed to a 4-week annotation sprint to deliver high-quality training data for autonomous vehicle algorithms. • Executed object clustering and point cloud segmentation for diverse urban objects. • Ensured accuracy and consistency across multiple annotation workflows. • Applied bounding box and segmentation protocols tailored for 3D datasets. • Facilitated thorough QA reviews and accuracy validation of labeled data.

2024 - 2024

Education

Work History