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T
Trestin Yaw D.

Trestin Yaw D.

AI Annotator — ATLAS CAPTURE

Ghana flagAtwima Nwabiagya North, Ghana

Key Skills

Software

CVATCVAT
AppenAppen
OneFormaOneForma

Top Subject Matter

Multimodal egocentric video dataset annotation
Akan language transcription quality control
Akan audio transcription and segmentation

Top Data Types

AudioAudio
ImageImage
VideoVideo
TextText

Top Task Types

Audio RecordingAudio Recording
Bounding BoxBounding Box
ClassificationClassification
Evaluation/RatingEvaluation/Rating
SegmentationSegmentation
TranscriptionTranscription

Freelancer Overview

AI Annotator — ATLAS CAPTURE. Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include N, A, and OneForma. Education includes Bachelor of Science, University of Cape Coast (2023). AI-training focus includes data types such as Video, Text, and Audio and labeling workflows including Segmentation, Transcription, and Evaluation.

Labeling Experience

Appen

Audio Transcriptionist

AppenAppenAudioAudioSegmentationSegmentationTranscriptionTranscription

As a Data Annotator for Chemin, a fully remote, gig-based position offering flexibility. I will listen to short audio clips to complete three core tasks: segmenting the audio by speaker, identifying the language and accent, and transcribing spoken English into written text. The ultimate goal of improving the accuracy of next-generation AI solutions.

2025 - 2026

AI Annotator — ATLAS CAPTURE

VideoVideoSegmentationSegmentation

Annotated and reviewed egocentric (first-person) video data to support multimodal AI training while following detailed project-specific guidelines. Labeled actions, objects, and temporal segments and performed dataset quality checks to catch issues and apply corrections. Ensured annotation consistency and accuracy to meet required dataset standards. • Labeled actions, objects, and temporal segments • Conducted video quality checks and corrections • Followed strict, guideline-based annotation criteria • Supported multimodal training dataset preparation

2026 - Present

Quality Control Specialist — CHEMIN AI

TextText

Reviewed and evaluated transcription work to ensure it met accuracy and quality standards. Identified and corrected errors in grammar, formatting, and content quality before finalizing outputs. Provided feedback to transcriptionists to improve future performance and consistency. • Checked transcriptions against quality/accuracy requirements • Corrected grammar, formatting, and content errors • Delivered improvement feedback to transcriptionists • Ensured consistent transcription quality across datasets

2026 - 2026
OneForma

Administrative Support & Quality Control Analyst — ONEFORMA

OneFormaOneFormaTextTextTranscriptionTranscription

Led quality control for Akan language transcription outputs, focusing on accuracy and consistency across deliverables. Supported recruitment and training of QC staff while refining transcription guidelines to improve overall data quality. Delivered structured feedback and managed key administrative workflows to enhance team efficiency. • Performed QC review of Akan transcription text • Identified and reduced accuracy/consistency issues • Refined guidelines with training support • Provided structured feedback to transcription/QC staff

2026 - 2026
Appen

Quality Control Specialist

AppenAppenAudioAudioEvaluation/RatingEvaluation/Rating

At Appen, I worked as a QC Annotator on a project to validate a large dataset of audio recordings. My primary responsibility involved reviewing more than 10,000 audio files for accuracy, ensuring the recorded English audio precisely aligned with pre-transcribed statements and adhered strictly to all project-specific quality guidelines.

2025 - 2025

Education

U

University of Cape Coast

Bachelor of Science, Nursing

Bachelor of Science
2019 - 2023

Work History

A

ATLAS CAPTURE 02/

AI ANNOTATOR

Location not specified
2026 - Present
A

Asuofua Polyclinic

Health Assisstant

KUMASI
2024 - 2025