It'S Njogu Fx

Key Skills

Software

Other

Remotasks

Surge AI

Toloka

Clickworker

OneForma

Top Subject Matter

Natural Language Processing

Linguistics Domain Expertise

LLM Fine-Tuning

Top Data Types

Text

Image

Audio

Top Task Types

Classification

Fine-tuning

Entity (NER) Classification

Bounding Box

Transcription

Freelancer Overview

AI Data Evaluator & Trainer. Brings 8+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other, Remotasks, and Surge AI. Education includes Bachelor of Arts, Moi University (2025). AI-training focus includes data types such as Text, Image, and Audio and labeling workflows including Evaluation, Rating, and Classification.

Labeling Experience

AI Data Evaluator & Trainer

OtherText

As an AI Data Evaluator & Trainer at Sigma AI, I performed data evaluation and annotation tasks for diverse linguistic projects to enhance model accuracy. I participated in refining machine learning pipelines for NLP by providing high-quality structured feedback and maintaining rigorous quality standards. My role also included upholding annotation guidelines, AI ethics, and data quality for language models. • Evaluated AI-generated content for tone, grammar, and accuracy • Labeled and classified text for natural language understanding • Assessed search engine result quality and intent recognition • Worked on domain-specific NLP tasks for enterprise AI clients

As an AI Data Evaluator & Trainer at Sigma AI, I performed data evaluation and annotation tasks for diverse linguistic projects to enhance model accuracy. I participated in refining machine learning pipelines for NLP by providing high-quality structured feedback and maintaining rigorous quality standards. My role also included upholding annotation guidelines, AI ethics, and data quality for language models. • Evaluated AI-generated content for tone, grammar, and accuracy • Labeled and classified text for natural language understanding • Assessed search engine result quality and intent recognition • Worked on domain-specific NLP tasks for enterprise AI clients

2023 - Present

AI Trainer – LLM Fine-Tuning Specialist

Surge AITextFine Tuning

As an AI Trainer – LLM Fine-Tuning Specialist at Outlier (Surge AI), I focused on prompt engineering and response ranking for large language models. I evaluated outputs for helpfulness, safety, and factual accuracy while contributing to supervised fine-tuning and RLHF datasets. My work helped align AI outputs to user intent and ethical standards. • Crafted and reviewed prompts and responses for LLM fine-tuning • Evaluated and ranked AI-generated replies • Flagged harmful or unsafe outputs for red-teaming • Collaborated on multi-domain data projects for leading AI labs

As an AI Trainer – LLM Fine-Tuning Specialist at Outlier (Surge AI), I focused on prompt engineering and response ranking for large language models. I evaluated outputs for helpfulness, safety, and factual accuracy while contributing to supervised fine-tuning and RLHF datasets. My work helped align AI outputs to user intent and ethical standards. • Crafted and reviewed prompts and responses for LLM fine-tuning • Evaluated and ranked AI-generated replies • Flagged harmful or unsafe outputs for red-teaming • Collaborated on multi-domain data projects for leading AI labs

2022 - Present

AI Data Annotator & Trainer

RemotasksTextClassification

As an AI Data Annotator & Trainer for Remotasks (Scale AI), I handled a range of text data annotation tasks, including text classification, entity recognition, and RLHF-based evaluation. I contributed to LLM fine-tuning efforts by crafting and evaluating prompts and responses and ranking AI outputs. I maintained high annotation accuracy and adhered to ethical and quality standards. • Labeled text data for sentiment analysis and intent detection • Performed RLHF and preference ranking on AI-generated responses • Participated in domain-specific annotation including coding and creative writing tasks • Reviewed and edited AI outputs for factual accuracy and coherence

As an AI Data Annotator & Trainer for Remotasks (Scale AI), I handled a range of text data annotation tasks, including text classification, entity recognition, and RLHF-based evaluation. I contributed to LLM fine-tuning efforts by crafting and evaluating prompts and responses and ranking AI outputs. I maintained high annotation accuracy and adhered to ethical and quality standards. • Labeled text data for sentiment analysis and intent detection • Performed RLHF and preference ranking on AI-generated responses • Participated in domain-specific annotation including coding and creative writing tasks • Reviewed and edited AI outputs for factual accuracy and coherence

2022 - Present

Language & Data Specialist

OneformaAudioTranscription

As a Language & Data Specialist for OneForma, I engaged in audio transcription, speech labeling, and audio recording to construct high-quality datasets for voice recognition and synthesis. I also performed content moderation and quality checks. My work contributed to the development of global voice AI and conversational interfaces. • Transcribed audio for speech-to-text applications • Labeled and annotated speech data for model training • Participated in building multilingual speech datasets • Ensured data quality and annotation consistency for enterprise clients

As a Language & Data Specialist for OneForma, I engaged in audio transcription, speech labeling, and audio recording to construct high-quality datasets for voice recognition and synthesis. I also performed content moderation and quality checks. My work contributed to the development of global voice AI and conversational interfaces. • Transcribed audio for speech-to-text applications • Labeled and annotated speech data for model training • Participated in building multilingual speech datasets • Ensured data quality and annotation consistency for enterprise clients

2021 - Present

Crowdworker – Text & Image Annotation

ClickworkerImageBounding Box

As a Crowdworker for Clickworker, I performed image annotation tasks including bounding boxes, relevance scoring, and classification for computer vision projects. These tasks supported AI model development in vision-based applications. I maintained high throughput and accuracy for premium and specialized projects. • Labeled images with bounding boxes for object detection • Scored image relevance for search and retail AI engines • Classified product images for e-commerce datasets • Worked on segmentation and tagging for computer vision tasks

As a Crowdworker for Clickworker, I performed image annotation tasks including bounding boxes, relevance scoring, and classification for computer vision projects. These tasks supported AI model development in vision-based applications. I maintained high throughput and accuracy for premium and specialized projects. • Labeled images with bounding boxes for object detection • Scored image relevance for search and retail AI engines • Classified product images for e-commerce datasets • Worked on segmentation and tagging for computer vision tasks

2021 - Present

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Education

Work History