Martin Gusimboya
@martinuser8
AI Data Specialist with 10 years’ experience in data annotation, evaluation, and ML support—delivering 97%+ quality at scale.
KenyaWhat I'm looking for
I’m an AI Data Specialist with 10 years of progressive experience in data annotation, content evaluation, quality assurance, and machine-learning support across global remote platforms. I consistently maintain task accuracy above 97% on high-volume, deadline-sensitive projects spanning text, audio, image, and video data.
I work across pairwise comparisons, object tagging, content labelling, and structured dataset preparation to improve model quality benchmarks and data integrity. I also bring strong multilingual expertise (English, Kiswahili, and Gusi/Gusi native) to support linguistic accuracy, fluency, cultural relevance, and contextual appropriateness—and I’ve mentored and onboarded evaluators to drive measurable accuracy improvements.
Experience
Work history, roles, and key accomplishments
AI Data Specialist
RWS TrainAI
Jan 2026 - Present (5 months)
Supported AI content improvement by performing multilingual data collection, evaluation, and annotation (text, audio, image, video) and pairwise comparisons. Maintained task accuracy above 97% while ensuring dataset integrity through research, verification, and adherence to quality guidelines.
Performed large-scale AI data evaluation and annotation, processing 500+ tasks per week with 97.5% sustained accuracy. Completed pairwise ranking for content quality and managed audio transcription, image labeling, and video tagging while mentoring 6 evaluators, contributing to a 15% accuracy improvement over 90 days.
Data Annotation Specialist
Sama
Mar 2018 - Dec 2020 (2 years 9 months)
Annotated and labeled text, image, and video datasets to support model training across computer vision and NLP. Handled object detection tagging at 10,000+ images per month with quality scores above 96%, and reduced team-wide error rates by ~20% by identifying annotation issues and updating internal style guides.
IT Support Technician & Data Officer
KCA University
Aug 2016 - Feb 2018 (1 year 6 months)
Maintained and supported student information systems, processing and verifying 5,000+ student records with high accuracy and confidentiality. Resolved 90% of support tickets within SLA, performed data audits to improve database integrity, and supported digitization that reduced record retrieval time by ~40%.
Education
Degrees, certifications, and relevant coursework
University of Nairobi
Bachelor of Science in Information Technology, Information Technology
Earned a Bachelor of Science in Information Technology from the University of Nairobi. Coursework included database management, data structures & algorithms, AI fundamentals, systems analysis, and computer networks, with a final-year project on automated data quality verification.
Starehe Boys Centre & School
Kenya Certificate of Secondary Education (KCSE), Secondary Education
Completed secondary education and earned the Kenya Certificate of Secondary Education (KCSE).
St. Austin's Academy
Kenya Certificate of Primary Education (KCPE), Primary Education
Completed primary education and earned the Kenya Certificate of Primary Education (KCPE).
Availability
Location
KenyaAuthorized to work in
Social media
Job categories
Skills
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