Vincent Brion
@vincentbrion
Detail-oriented Junior Data Analyst skilled in SQL, Power BI, and AI model data preparation.
What I'm looking for
I am a detail-oriented Junior Data Analyst with hands-on experience in data cleaning, validation, and AI model training, formally trained in the ALX Data Analytics program in 2025. I use SQL, Power BI, and Excel to extract, transform, visualize, and automate reporting, consistently improving workflow efficiency and reporting accuracy.
My background includes freelance data analysis for clients on Upwork and evaluation work with Appen, Lionbridge, OneForma and others, where I labeled datasets, conducted LLM evaluation, and ensured 95%+ data accuracy for AI/ML projects. I have built ETL pipelines, designed dashboards tracking multiple KPIs, and delivered actionable insights that improved client outcomes and reduced turnaround times.
I bring strong research and stakeholder communication skills from roles at the Kenya Revenue Authority and legal attaché work, and I am eager to apply my analytical and AI-data expertise in collaborative environments to enhance model performance and inform data-driven decisions.
Experience
Work history, roles, and key accomplishments
Provided data analysis and ETL solutions for multiple clients, designing Power BI dashboards that automated reporting and improved workflow efficiency by ~20–30% while maintaining 95%+ data accuracy.
Data Evaluation Specialist
Lionbridge
Jan 2021 - Dec 2024 (3 years 11 months)
Performed dataset labeling and quality reviews for ML training, contributing to improved model coherence and relevance across multiple projects and platforms.
Data Evaluation Specialist
TranscribeMe
Jan 2021 - Dec 2024 (3 years 11 months)
Performed transcription, labeling, and validation of audio datasets to support ML model training and improve transcription accuracy and usability.
Data Evaluation Specialist
Appen
Jan 2021 - Dec 2024 (3 years 11 months)
Evaluated and labeled large-scale text, audio, image, and video datasets for AI/ML projects, improving relevance and training data quality to achieve 95%+ accuracy and a 10% uplift in search relevance.
Data Evaluation Specialist
Toloka
Jan 2021 - Dec 2024 (3 years 11 months)
Executed evaluation and labeling tasks across diverse datasets, contributing to improved model performance and consistent dataset quality.
Data Evaluation Specialist
Datamine
Jan 2021 - Dec 2024 (3 years 11 months)
Supported data preparation and validation efforts for AI/ML projects, ensuring high-quality labeled datasets and contributing to research deliverables.
Data Evaluation Specialist
Clickworker
Jan 2021 - Dec 2024 (3 years 11 months)
Conducted large-volume evaluation tasks and quality checks for AI datasets, maintaining accuracy standards and adapting to varied client requirements.
Data Evaluation Specialist
OneForma
Jan 2021 - Dec 2024 (3 years 11 months)
Delivered data labeling and evaluation services for AI initiatives, ensuring high-quality inputs for model training and contributing to project-specific accuracy targets.
Intern Data Analyst
Kenya Revenue Authority
Jan 2021 - Dec 2021 (11 months)
Analyzed customer feedback and operational data to reduce service congestion by 20%, and built Excel dashboards to automate staff performance monitoring.
Attaché Analyst
Environment and Land Court
Jan 2020 - Mar 2020 (2 months)
Analyzed case records and operational trends to improve data accessibility and optimize hearing schedules, enhancing court efficiency.
Education
Degrees, certifications, and relevant coursework
African Leadership Experience (ALX)
Certificate, Data Analytics
2025 - 2025
Completed the Data Analytics Program focused on SQL, Power BI, data cleaning, and visualization to support analytics and AI projects.
Brait Academy
Certificate, Excel for Analytics
2025 - 2025
Completed a comprehensive Excel in Analytics course covering advanced Excel features for data analysis and reporting.
Cisco Networking Academy
Certificate, Cybersecurity
2023 - 2023
Completed an Introduction to Cybersecurity course covering basic cybersecurity concepts and practices.
Mount Kenya University
Bachelor of Arts, Criminology & Security Studies
Earned a Bachelor of Arts in Criminology & Security Studies with focus on forensic and research methods.
Microsoft
Certification, Microsoft Office
2017 - 2017
Obtained Microsoft Office Specialist certifications in Excel, PowerPoint, Publisher, and Office.
Availability
Location
Authorized to work in
Job categories
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