Muyanja E.

Key Skills

Software

Other

Top Subject Matter

Autonomous vehicle perception (computer vision)

LLM response evaluation and chatbot training

E-commerce customer service chatbot sentiment analysis

Top Data Types

Image

Text

Top Task Types

Bounding Box

Emotion Recognition

Classification

Freelancer Overview

AI Data Annotator (Freelance). Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other and Google Sheets. Education includes Bachelor of Science, Science in Information Technology (2026) and Certificate, Ministry of ICT-Uganda (2026). AI-training focus includes data types such as Image and Text and labeling workflows including Bounding Box, Evaluation, and Rating.

Labeling Experience

Text Labeler for Sentiment Analysis (Freelance)

OtherTextEmotion Recognition

Categorized complex text datasets for sentiment analysis to improve e-commerce customer service bots. Labeled text examples to support downstream NLP classification and conversational response tuning. Ensured consistent dataset labeling to improve model performance. • Sentiment category labeling for text data • Dataset categorization for e-commerce support use cases • Consistency checks for label assignment • Preparation of labeled datasets for training

2024 - Present

Bot Trainer & LLM Evaluator (Freelance)

OtherText

Evaluated 5,000+ LLM/chatbot responses for accuracy, safety, and helpfulness to improve conversational AI behavior. Performed conversation flow testing by checking response quality against expected outcomes. Used evaluation judgments to guide bot training improvements. • Rated helpfulness, safety, and factuality • Conducted response-level quality checks • Supported iterative improvements to chatbot outputs • Validated conversation flow behavior

2024 - Present

AI Data Annotator (Freelance)

OtherImageBounding Box

Labeled 10,000+ images for autonomous vehicle perception models using bounding boxes and polygons. Maintained 99.5% quality scores across annotation batches while working to tight freelance deadlines. Supported model training by ensuring consistent labeling quality and dataset readiness. • Object localization via bounding boxes • Instance boundary marking with polygons • Annotation QA to ensure label accuracy • Deadline-focused batch delivery

2024 - Present

Data Entry Specialist (Freelance)

TextClassification

Migrated 20,000+ rows of raw data into structured Google Sheets and CRM databases while ensuring clean, usable records. Audited and corrected entries by removing duplicates, fixing formatting errors, and completing incomplete fields. Performed data integrity checks to support downstream analytics and AI-ready datasets. • Data migration and structuring into spreadsheets/CRMs • Deduplication and data cleanup • Correction of formatting and incomplete records • QA checks for accuracy and completeness

2024 - 2026

Education

Work History