Dennis User
@dennisuser20
Data Annotation Specialist at Micropoint Systems who improved annotation productivity by 25%.
KenyaWhat I'm looking for
At Micropoint Systems, I annotated image, text, and video datasets for machine learning training, maintaining a 98% accuracy rate. I created annotation taxonomies and guidelines, and developed workflows that increased annotation productivity by 25%.
At Pie General Technologies, I reviewed training data for AI-assisted learning systems, trained junior annotators, and created classification rubrics. I’m seeking opportunities to use my data annotation skills to advance AI-powered technologies.
Experience
Work history, roles, and key accomplishments
Data Annotation Specialist
Micropoint Systems
Jan 2024 - May 2026 (2 years 4 months)
Annotated diverse datasets including images, text, and video for machine learning model training. Maintained 98% accuracy rate and developed efficient workflows that increased annotation productivity by 25%.
Content Quality Analyst
Pie General Technologies
Sep 2022 - Dec 2023 (1 year 3 months)
Reviewed and validated training data for AI-assisted learning systems. Trained junior annotators and created detailed rubrics for consistent data classification across teams.
Junior Data Annotator
Sympony Technologies Limited
Sep 2021 - Jul 2022 (10 months)
Performed text annotation for natural language processing applications. Tagged and classified data according to project-specific guidelines and achieved consistent quality scores above 95%.
Research Assistant
AI Research Lab, Savanna
May 2021 - Aug 2021 (3 months)
Assisted in creating specialized datasets for computer vision applications. Annotated images for object detection and recognition models and validated machine learning outputs.
Education
Degrees, certifications, and relevant coursework
Meru University of Science and Technology
Bachelor of Technology, Computer Science and Engineering
2018 - 2022
Pursued a Bachelor of Technology in Computer Science and Engineering from 2018 to 2022.
Meru University of Science and Technology
Diploma, Graphic Design
2017 - 2018
Completed a Diploma in Graphic Design from 2017 to 2018.
Microsoft
Microsoft Certified: Azure Fundamentals, Cloud Computing
Earned the Microsoft Certified: Azure Fundamentals certification.
Google Data Analytics Certificate, Data Analytics
Earned the Google Data Analytics Certificate.
Amazon Web Services
AWS Certification, Cloud Computing
Earned an AWS Certification.
Project Management Institute
Project Management Professional (PMP), Project Management
Earned the Project Management Professional (PMP) certification.
Tech stack
Software and tools used professionally
Availability
Location
KenyaAuthorized to work in
Salary expectations
Job categories
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