Christian Adah

Key Skills

Software

Mindrift

Data Annotation Tech

Mercor

Top Subject Matter

AI Text Generation

General Knowledge

Machine Learning Evaluation

Top Data Types

Text

Image

Document

Top Task Types

Prompt Response Writing SFT

Data Collection

Question Answering

Freelancer Overview

AI Data Annotator, Video Annotator & Prompt Evaluator. Brings 2+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Mindrift, Data Annotation Tech, and Internal. Education includes Bachelor of Science, University of Nigeria (2025). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Prompt + Response Writing (SFT).

Labeling Experience

Workflow Automation Specialist (AI Integration)

TextData Collection

In the role of Workflow Automation Specialist, I focused on building automation workflows that facilitate structured data capture and AI system integration. While not annotation in the strictest sense, my work provided labeled and structured datasets feeding into AI training pipelines. The position necessitated strong annotation-adjacent competencies and familiarity with structured data handling. • Developed and maintained workflow automations using n8n and Claude API. • Created automated systems to capture, structure, and transfer data for labeling. • Integrated embedding models and vector storage for AI training workflows. • Designed pipelines that directly interface with data labeling technologies.

In the role of Workflow Automation Specialist, I focused on building automation workflows that facilitate structured data capture and AI system integration. While not annotation in the strictest sense, my work provided labeled and structured datasets feeding into AI training pipelines. The position necessitated strong annotation-adjacent competencies and familiarity with structured data handling. • Developed and maintained workflow automations using n8n and Claude API. • Created automated systems to capture, structure, and transfer data for labeling. • Integrated embedding models and vector storage for AI training workflows. • Designed pipelines that directly interface with data labeling technologies.

2025 - Present

Freelance AI Trainer & Data Annotator

Data Annotation TechTextPrompt Response Writing SFT

As a Freelance AI Trainer & Data Annotator at Data Annotation Tech and independently, I wrote and evaluated prompt-response pairs to support LLM fine-tuning. I conducted intent tagging, sentiment classification, and NER labeling for NLP datasets to improve AI comprehension. My tasks involved rigorous quality checks and frequent calibration to align with client annotation standards. • Authored and assessed SFT prompt-response pairs across diverse subject domains. • Labeled datasets for intent, sentiment, and entity recognition. • Reviewed AI-generated content for grammar and factual accuracy. • Maintained annotation accuracy rates above 95%.

As a Freelance AI Trainer & Data Annotator at Data Annotation Tech and independently, I wrote and evaluated prompt-response pairs to support LLM fine-tuning. I conducted intent tagging, sentiment classification, and NER labeling for NLP datasets to improve AI comprehension. My tasks involved rigorous quality checks and frequent calibration to align with client annotation standards. • Authored and assessed SFT prompt-response pairs across diverse subject domains. • Labeled datasets for intent, sentiment, and entity recognition. • Reviewed AI-generated content for grammar and factual accuracy. • Maintained annotation accuracy rates above 95%.

2025 - Present

AI Data Annotator & Prompt Evaluator

MindriftText

As an AI Data Annotator & Prompt Evaluator at Mindrift (via Toloka AI), I completed qualification tasks across AI Bootcamp modules focusing on annotation methodologies. I performed annotation and evaluation of AI-generated text responses for RLHF pipelines, including identifying errors and ranking outputs by quality. My work required adhering to strict guidelines, maintaining consistency, and flagging issues like hallucinations or bias. • Ranked multiple AI outputs for quality and relevance. • Used project-specific rubrics to evaluate text responses. • Identified hallucinations, factual errors, and bias in AI outputs. • Ensured high-quality labeling standards in all submitted batches.

As an AI Data Annotator & Prompt Evaluator at Mindrift (via Toloka AI), I completed qualification tasks across AI Bootcamp modules focusing on annotation methodologies. I performed annotation and evaluation of AI-generated text responses for RLHF pipelines, including identifying errors and ranking outputs by quality. My work required adhering to strict guidelines, maintaining consistency, and flagging issues like hallucinations or bias. • Ranked multiple AI outputs for quality and relevance. • Used project-specific rubrics to evaluate text responses. • Identified hallucinations, factual errors, and bias in AI outputs. • Ensured high-quality labeling standards in all submitted batches.

2025 - Present

Education

Work History