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E

Esther D.

Data annotator/QA expert at Appen

Nigeria flagLagos, Nigeria

Key Skills

Software

AppenAppen
OneFormaOneForma
Other
ClickworkerClickworker

Top Subject Matter

AI/ML content evaluation and dataset quality assurance
Machine translation post-editing and translation quality
Online product data entry and content updates

Top Data Types

TextText
AudioAudio

Top Task Types

Data CollectionData Collection
TranscriptionTranscription
Text GenerationText Generation
Evaluation/RatingEvaluation/Rating

Freelancer Overview

Data annotator/QA expert at Appen. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Appen, OneForma, and Other. Education includes Bachelor of Science, Lagos State University (2023). AI-training focus includes data types such as Text and Audio and labeling workflows including Evaluation, Rating, and Translation.

Labeling Experience

Freelancer (Upwork) - Transcription

OtherAudioAudioTranscriptionTranscription

Provided remote transcription services for recorded speech content for clients. Produced written transcripts from audio in a range of contexts including interviews, academic materials, and conversations. Ensured transcription accuracy to meet client expectations for deliverables. • Transcribed spoken conversations and interviews • Transcribed academic and informational speech • Delivered text transcripts for client consumption • Supported remote, deadline-driven transcription projects

2023 - Present
Appen

Data annotator/QA expert at Appen

AppenAppenTextText

Collected and labeled text-based data to support AI and machine learning workflows. Performed content evaluation and online research to verify information quality and relevance. Identified errors, inconsistencies, and formatting issues in text datasets to improve dataset integrity. • Labeled/annotated content per task guidelines • Reviewed products and verified category alignment • Performed information verification via online research • Checked text formatting and consistency across records

2025 - 2026
OneForma

Machine translation post editor (MTPE) at OneForma

OneFormaOneFormaTextText

Reviewed and refined AI-generated machine translations to improve grammar, clarity, tone, and contextual accuracy. Edited translated content to ensure natural readability and consistency across different language pairs. Used AI-assisted workflows and digital tools to maintain human-level quality control. • Post-edited translation outputs for multiple language pairs • Improved linguistic quality and contextual correctness • Ensured consistent tone and readability • Applied AI-assisted review workflows for efficiency

2024 - 2025

Administrative and digital support assistant at Wolfgang restaurant

OtherTextTextData CollectionData Collection

Supported online product listing management and updated menu information on a digital platform. Conducted data entry and content updates as part of routine administrative workflows. Helped organize customer orders and digital records to keep data current and usable. • Updated product listings and menu content • Performed data entry and record maintenance • Assisted with organizing digital customer orders • Conducted basic content updates on the platform

2023 - 2023

Education

L

Lagos State University

Bachelor of Science, Computer Science

Bachelor of Science
2019 - 2023

Work History

U

Upwork

Freelance Transcription Specialist (Remote)

Lagos
2023 - Present
O

OneForma

Machine Translation Post Editor

Lagos
2024 - 2025