Sydney S.

Key Skills

Software

Clickworker

OneForma

Remotasks

Top Subject Matter

Machine learning dataset annotation

Software testing for product reliability and UX/UI

Legal Services & Contract Review

Top Data Types

Text

Document

Top Task Types

Classification

Evaluation/Rating

Question Answering

Text Generation

Entity (NER) Classification

Segmentation

Freelancer Overview

Data Annotation Specialist at Clickworker. Brings 9+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Clickworker, N, and A. Education includes Diploma, Cooperative University (2019) and Kenya Certificate of Secondary Education, Hospital Hill Secondary School (2014). AI-training focus includes data types such as Text, Computer Code, and Programming and labeling workflows including Evaluation and Rating.

Labeling Experience

Data Annotation Specialist at Clickworker

ClickworkerText

Served as a Data Annotation Specialist, completing labeling tasks to support machine learning model training and improve training accuracy. Conducted quality assurance checks on annotation submissions to reduce errors and ensure data quality. Collaborated with cross-functional teams to maintain on-time delivery and consistent annotation standards. • Annotated diverse datasets for ML models • Improved training accuracy by over 20% • Performed QA checks on data submissions • Reduced annotation errors by 15%

2025 - 2026

Quality Assurance Tester (Various)

Worked as a Quality Assurance Tester executing manual and automated validation for complex software interfaces. Reported findings and recommendations to product teams to support improvements in reliability and user experience. Produced structured testing reports that informed UX/UI changes. • Executed manual and automated tests • Troubleshot issues in admin panels and CRM tools • Produced testing reports and recommendations • Supported UX/UI and reliability improvements

2023 - 2024

Education

Work History