Maengwe Amos

Key Skills

Software

Appen

Remotasks

Toloka

Top Subject Matter

Natural Language Processing

Search Relevance

Image Categorization

Top Data Types

Text

Image

Top Task Types

Entity (NER) Classification

Bounding Box

Classification

Freelancer Overview

Data Annotation Specialist – Appen Ltd. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Appen, Remotasks, and Toloka. Education includes Bachelor of Business Information Technology, Jomo Kenyatta University of Agriculture and Technology (2018) and Kenya Certificate of Secondary Education, Emesa Secondary School (2013). AI-training focus includes data types such as Text and Image and labeling workflows including Entity (NER) Classification, Bounding Box, and Classification.

Labeling Experience

Data Annotation Specialist – Appen Ltd

AppenTextEntity Ner Classification

As a Data Annotation Specialist at Appen Ltd, I labeled various datasets for natural language processing tasks and image categorization. I achieved over 95% accuracy while performing tasks such as sentiment analysis, entity extraction, and search relevance evaluation on text-based data. I strictly adhered to annotation guidelines to deliver quality results supporting AI model development. • Labeled text data sets for sentiment analysis and entity recognition. • Maintained high accuracy and followed detailed annotation instructions. • Participated in search relevance and model evaluation projects. • Used Appen's proprietary tools to process data and ensure consistency.

As a Data Annotation Specialist at Appen Ltd, I labeled various datasets for natural language processing tasks and image categorization. I achieved over 95% accuracy while performing tasks such as sentiment analysis, entity extraction, and search relevance evaluation on text-based data. I strictly adhered to annotation guidelines to deliver quality results supporting AI model development. • Labeled text data sets for sentiment analysis and entity recognition. • Maintained high accuracy and followed detailed annotation instructions. • Participated in search relevance and model evaluation projects. • Used Appen's proprietary tools to process data and ensure consistency.

2022 - 2023

Computer Vision Data Labeler – Scale AI (via Remotasks)

RemotasksImageBounding Box

As a Computer Vision Data Labeler with Scale AI via Remotasks, I contributed to high-quality datasets for autonomous vehicle training. My responsibilities included annotating image data using bounding boxes, polygons, and segmentation tools. I consistently met top-tier quality standards and handled over 1,000 tasks through the project duration. • Annotated objects in images with bounding boxes and polygons. • Performed semantic segmentation for machine learning applications. • Focused on accuracy for autonomous vehicle data projects. • Employed Remotasks and Scale AI platforms for labeling tasks.

As a Computer Vision Data Labeler with Scale AI via Remotasks, I contributed to high-quality datasets for autonomous vehicle training. My responsibilities included annotating image data using bounding boxes, polygons, and segmentation tools. I consistently met top-tier quality standards and handled over 1,000 tasks through the project duration. • Annotated objects in images with bounding boxes and polygons. • Performed semantic segmentation for machine learning applications. • Focused on accuracy for autonomous vehicle data projects. • Employed Remotasks and Scale AI platforms for labeling tasks.

2021 - 2022

Contributor – Toloka AI & Clickworker

TolokaImageClassification

As a Contributor on Toloka AI and Clickworker, I completed various micro-tasks requiring detailed data labeling for AI and machine learning projects. These included image categorization, audio transcription, and search relevance tasks. My attention to rules and instructions ensured consistently reliable results in each assignment. • Carried out image categorization for training data sets. • Performed audio transcription and quality checks. • Evaluated search relevance using data evaluation criteria. • Worked with Toloka and Clickworker crowd platforms for labeling.

As a Contributor on Toloka AI and Clickworker, I completed various micro-tasks requiring detailed data labeling for AI and machine learning projects. These included image categorization, audio transcription, and search relevance tasks. My attention to rules and instructions ensured consistently reliable results in each assignment. • Carried out image categorization for training data sets. • Performed audio transcription and quality checks. • Evaluated search relevance using data evaluation criteria. • Worked with Toloka and Clickworker crowd platforms for labeling.

2020 - 2021

Education

Work History