Margaret Muturi

Key Skills

Software

iMerit

Sama

Top Subject Matter

NLP image-text evaluation

Computer Vision Annotation

Top Data Types

Image

Top Task Types

Bounding Box

Freelancer Overview

NLP / Data Annotator. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include iMerit and Sama. Education includes Diploma in Community Development and Social Work, Thika Technical Training Institute (2021) and Kenya Certificate of Secondary Education, Kiria-ini Girls High School (2016). AI-training focus includes data types such as Image and labeling workflows including Evaluation, Rating, and Bounding Box.

Labeling Experience

NLP / Data Annotator

ImeritImage

In this role, I evaluated the alignment between images and text prompts for NLP model training purposes. My work centered on comparing image pairs to determine which best represented the intended meaning, while following shifting annotation guidelines. Clear documentation and content flagging were crucial to maintaining high-quality model outputs. • Applied annotation instructions to large, varied datasets. • Flagged factually incorrect, ambiguous, or sensitive content. • Maintained consistency and met/exceeded productivity and quality benchmarks. • Clearly documented reasoning for review and quality assurance.

In this role, I evaluated the alignment between images and text prompts for NLP model training purposes. My work centered on comparing image pairs to determine which best represented the intended meaning, while following shifting annotation guidelines. Clear documentation and content flagging were crucial to maintaining high-quality model outputs. • Applied annotation instructions to large, varied datasets. • Flagged factually incorrect, ambiguous, or sensitive content. • Maintained consistency and met/exceeded productivity and quality benchmarks. • Clearly documented reasoning for review and quality assurance.

2026 - Present

Data Associate

SamaImageBounding Box

I annotated images, videos, and 3D point cloud data for computer vision model training in multiple client projects. My responsibilities included quality checking batches, addressing inconsistencies, and updating annotation standards as new object classes emerged. This required consistent performance across concurrent assignments under tight deadlines. • Used CVAT, LabelImg, and proprietary platforms for data annotation. • Identified and escalated edge cases before they impacted model performance. • Collaborated with engineers and data scientists on annotation standards. • Consistently achieved daily and weekly output targets.

I annotated images, videos, and 3D point cloud data for computer vision model training in multiple client projects. My responsibilities included quality checking batches, addressing inconsistencies, and updating annotation standards as new object classes emerged. This required consistent performance across concurrent assignments under tight deadlines. • Used CVAT, LabelImg, and proprietary platforms for data annotation. • Identified and escalated edge cases before they impacted model performance. • Collaborated with engineers and data scientists on annotation standards. • Consistently achieved daily and weekly output targets.

2023 - 2026

Education

Work History