Samuel Malvin

Data Annotator/ AI Trainer

Lekki, Lagos, Nigeria

@samuel_malvin

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Looking for jobs Looking for internships Open to relocating

About

I'm a Detail-oriented Data Annotation Specialist with hands-on experience annotating text and image datasets for Artificial. Intelligence (AI) and Machine Learning (ML) applications. Experienced in Natural Language Processing (NLP) annotation tasks including sentiment analysis, topic classification, intent classification, named entity recognition (NER), intent and slot filling, content moderation, question answering, and text summarization. Also experienced in Computer Vision annotation tasks, including image classification, image captioning, and object detection using bounding boxes. Leveraging a strong UX/UI design background to deliver high-quality annotations through exceptional visual attention, analytical thinking, and strict adherence to annotation guidelines.

Experience

Data annotator

Freelance · Lagos

May 2026 – Present

Completed practical annotation projects simulating real-world AI data labeling workflows using Label Studio. Natural Language Processing (NLP) - Annotated datasets involving; Sentiment Analysis Topic Classification Intent Classification Named Entity Recognition (NER) Intent & Slot Filling Question Answering Text Summarization Content Moderation Computer Vision - Annotated Image datasets involving; Image Classification Image Captioning Object Detection using Bounding Boxes Responsibilities Applied project-specific annotation guidelines consistently. Reviewed annotations for quality, consistency, and accuracy. Identified ambiguous samples and maintained labeling consistency across datasets. Produced structured annotations supporting AI model training.

Education

Bachelor's degree

Rivers State University · Rivers State University

Environmental Science · Sep 2017 – Jul 2022

Skills

🗣️ Languages

English · Intermediate

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