Open to opportunities

Sylvia Wambui

@sylviawambui1

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Data professional skilled in annotation, analysis, and automation.

Kenya

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What I'm looking for

I seek data-focused roles where I can apply annotation, automation, and analytics skills to improve processes, ensure high data quality, and support actionable insights in collaborative, growth-oriented teams.

I am a data professional who transforms raw data into strategic assets through precise annotation, analysis, and automation. My work blends statistical rigor with practical tooling to deliver reliable, actionable datasets for decision-making.

I have hands-on experience with data labelling platforms such as CVAT and Super Annotate, and strong programming skills in Python, Pandas, NumPy, and SQL. I build dashboards and reports using Power BI and Tableau to surface insights and support cost-saving decisions.

In recent roles I automated data categorization workflows, improving processing efficiency by 30%, digitized legacy records to reduce retrieval time by 40%, and maintained near-perfect accuracy across large-scale record sets. I also hold certifications in Data Analytics, Virtual Assistance, and AI Prompt Engineering.

I am driven to contribute my mix of data-cleaning, quality assurance, and automation skills to teams focused on scalable, data-driven solutions and continuous process improvement.

Experience

Work history, roles, and key accomplishments

Current

Virtual Assistant

Current

Self-Employed

Jan 2025 - Present (8 months)

Provided high-volume precise data entry and CRM categorization achieving 99.9% accuracy, managed calendars for 10+ clients and scheduled 50+ weekly meetings with 98% accuracy.

CRM Data Entry Google Workspace Microsoft Office Scheduling Client Communication

Records Manager Specialist

Ravine Dairies

Apr 2024 - Sep 2024 (5 months)

Labeled and maintained 500+ daily production records with 99% accuracy and digitized legacy records into structured databases, reducing data retrieval time by 40% and identifying invoice discrepancies that saved 15% in procurement costs.

Data Labeling SQL Excel Power BI Data Cleaning Quality Assurance Records Management Process Automation

Data Analyst Intern

Kenyatta University Teaching Hospital

Apr 2023 - Sep 2023 (5 months)

Automated categorization and tagging of patient data with Python, improving processing efficiency by 30% and managing 500+ patient records monthly with 99.5% accuracy.

Python Pandas SQL Data Cleaning Statistical Analysis Automation)