I'm Kelvin Maingi, a detail-oriented and tech-savvy AI data annotation specialist with 5 years of experience in AI dataset preparation, labeling, and validation. I create clean, accurate data for machine learning models and excel at image, text, and video annotation, transcription, and quality control. Beyond annotation, I offer creative services in social media and graphic design to ensure visually engaging and impactful content for digital brands.…

Kelvin Maingi

I'm Kelvin Maingi, a detail-oriented and tech-savvy AI data annotation specialist with 5 years of experience in AI dataset preparation, labeling, and validation. I create clean, accurate data for machine learning models and excel at image, text, and video annotation, transcription, and quality control. Beyond annotation, I offer creative services in social media and graphic design to ensure visually engaging and impactful content for digital brands.…

Available to hire

I’m Kelvin Maingi, a detail-oriented and tech-savvy AI data annotation specialist with 5 years of experience in AI dataset preparation, labeling, and validation. I create clean, accurate data for machine learning models and excel at image, text, and video annotation, transcription, and quality control.

Beyond annotation, I offer creative services in social media and graphic design to ensure visually engaging and impactful content for digital brands.

See more

Skills

Experience Level

Language

English
Advanced

Work Experience

Customer Service Specialist at Hilalium & Sons
October 1, 2024 - Present
Improved CRM data accuracy by updating 100% of client interactions, enhancing sales forecasting and reporting efficiency. Resolved customer issues promptly, providing tailored solutions, improving average response time and contributing to higher service standards.
Data Entry & Customer Service Clerk at Sunda International
January 1, 2022 - August 1, 2024
Managed data entry, validation, and reporting with high accuracy. Improved workflows, reducing processing time by 30%.
Data Annotator / Captioner at Rev (Remote)
April 1, 2022 - November 1, 2022
Captioned and annotated text and audio datasets for NLP. Maintained over 98% accuracy and supported language model training.
Data Annotation Specialist at Remotask (Remote)
September 1, 2021 - March 1, 2022
Performed labeling and segmentation for computer vision and automation projects. Supported AI dataset creation for global clients.
Agent / Quality Analyst at Samasource
August 1, 2020 - September 1, 2021
Conducted data audits, provided feedback, and improved annotation accuracy by 20%. Ensured project quality and guideline compliance.

Education

Bachelor of Science in Entrepreneurship at Karatina University
September 1, 2016 - April 1, 2020
Certificate in Web Research at Samaschool Training
June 1, 2020 - August 1, 2020
Certificate in Customer Service & Hospitality at CAP Youth Empowerment Institute
April 1, 2018 - September 1, 2018

Qualifications

Certificate in Web Research
June 1, 2020 - August 1, 2020
Certificate in Customer Service & Hospitality
April 1, 2018 - September 1, 2018

Industry Experience

Software & Internet, Professional Services, Media & Entertainment, Education, Other

Skills

Experience Level