Caleb Ifeanyi

Key Skills

Software

Label Studio

Appen

Top Subject Matter

Multilingual NLP

AI Prompt Engineering

Cv Domain Expertise

Top Data Types

Text

Audio

Image

Document

Top Task Types

Prompt + Response Writing (SFT)

Classification

Transcription

Freelancer Overview

Senior AI Data Specialist, TechNova Group. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Label Studio, Appen, and RWS. Education includes TechNova Group | Remote/Global, Senior AI Data Specialist (2021). AI-training focus includes data types such as Text and Audio and labeling workflows including Prompt + Response Writing (SFT), Classification, and Transcription.

Labeling Experience

Senior AI Data Specialist, TechNova Group

Label StudioTextPrompt Response Writing SFT

Led multilingual data annotation and linguistic validation for large language models and neural machine translation systems. Authored and reviewed AI prompts and responses to refine dialogue and reasoning capabilities. Ensured data accuracy, guideline adherence, and consistency throughout workflow. • Managed diverse multilingual datasets for LLM and NMT. • Reviewed and created SFT-style prompts and completions. • Conducted QA, cross-team reviews, and guideline enforcement. • Used Label Studio, LightTag, and Prodigy for annotation.

Led multilingual data annotation and linguistic validation for large language models and neural machine translation systems. Authored and reviewed AI prompts and responses to refine dialogue and reasoning capabilities. Ensured data accuracy, guideline adherence, and consistency throughout workflow. • Managed diverse multilingual datasets for LLM and NMT. • Reviewed and created SFT-style prompts and completions. • Conducted QA, cross-team reviews, and guideline enforcement. • Used Label Studio, LightTag, and Prodigy for annotation.

2021 - 2021

AI Linguistic Annotator, Appen

AppenTextClassification

Labeled and validated text, audio, and image datasets for machine learning and natural language processing purposes. Participated in quality assurance, tagging, consistency checks, and multilingual data handling. Ensured high-quality deliverables for client-side model training and evaluation. • Managed bulk annotation for text and audio domains. • Utilized Appen’s tools for NER and classification tasks. • Reviewed and audited annotator submissions. • Supported multiple languages and domains.

Labeled and validated text, audio, and image datasets for machine learning and natural language processing purposes. Participated in quality assurance, tagging, consistency checks, and multilingual data handling. Ensured high-quality deliverables for client-side model training and evaluation. • Managed bulk annotation for text and audio domains. • Utilized Appen’s tools for NER and classification tasks. • Reviewed and audited annotator submissions. • Supported multiple languages and domains.

2018 - 2020

Data Transcription & Translation Specialist, TransPerfect

AudioTranscription

Managed and conducted transcription and translation projects to produce speech and text datasets for AI analytics. Built and refined language resources to support speech recognition and semantic understanding models. Led quality review initiatives for high-accuracy multilingual datasets. • Developed scripts and datasets for multilingual speech analysis. • Performed post-editing of machine-generated content. • Assisted localization teams with QA for annotated content. • Utilized RWS and Trados Studio for transcription workflow.

Managed and conducted transcription and translation projects to produce speech and text datasets for AI analytics. Built and refined language resources to support speech recognition and semantic understanding models. Led quality review initiatives for high-accuracy multilingual datasets. • Developed scripts and datasets for multilingual speech analysis. • Performed post-editing of machine-generated content. • Assisted localization teams with QA for annotated content. • Utilized RWS and Trados Studio for transcription workflow.

2016 - 2018

Education

Work History