Samuel Malvin

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

• Data Verification
• Quality Review
• Content Moderation
• Sentiment Analysis
• Image Annotation
• Text Annotation
• Image Classification
• Intent Classification
• Topic Classification
• Named Entity Recognition(NER)
• Intent & Slot Filling
• Question Answering(QA)
• Text Summarization
• Image Captioning
• Object Detection(Bounding Box Annotation)
• Annotation Guideline Compliance
• Attention to details

🗣️ Languages

• English · Intermediate