Sammy Murigi

Detail-oriented professional with extensive experience in data annotation, image labeling, transcription, quality assurance, content creation, and technical support. Proven ability to deliver high-accuracy outputs at scale while consistently meeting deadlines in fast-paced, guideline-driven environments. Skilled at managing large volumes of annotation and evaluation tasks with precision and consistency.

Strong foundation in ICT, networking (CCNA), and full-stack web development. Proficient with annotation tools and remote collaboration platforms. Available immediately for full-time or contract engagements.

Data Annotation Specialist at iMerit (2026-01 – 2026-03)

Performed precise image labeling, bounding box annotation, and polygon segmentation for computer vision datasets with high accuracy and consistency.

• Performed precise image labeling, bounding box annotation, and polygon segmentation for computer vision datasets
• Ensured annotation consistency and accuracy using iMerit's internal annotation platform and quality review tools
• Met daily and weekly annotation quotas while maintaining quality scores above project thresholds
• Flagged ambiguous cases and collaborated with QA leads to resolve edge cases and refine guidelines
• Contributed to structured data production for machine learning model training pipelines

Content & Data Specialist at Micro1 (2025-01 – 2025-12)

Produced structured data samples and annotated datasets for AI and NLP training projects with strict quality standards.

• Produced structured data samples and annotated datasets for AI and NLP training projects
• Generated clear, accurate written content and labeled data to meet strict quality and formatting standards
• Coordinated with remote teams to ensure timely, guideline-compliant outputs across multiple concurrent projects
• Consistently met delivery deadlines while maintaining high accuracy rates across all assigned tasks
• Assisted in documentation and workflow optimization to improve team efficiency

Quality Analyst / Data Evaluator at Sama (2017-10 – 2025-12)

Reviewed and validated large volumes of annotated data for quality assurance across AI and machine learning pipelines with focus on accuracy and consistency.

• Reviewed and validated large volumes of annotated data for quality assurance across AI and machine learning pipelines
• Performed data annotation, image labeling, and content moderation with a strong focus on accuracy and consistency
• Maintained high accuracy scores and met strict project deadlines across multiple simultaneous projects
• Mentored contributors and improved onboarding processes, reducing ramp-up time for new team members
• Supported multiple annotation and AI content evaluation projects with consistent high-quality output

Quality Analyst at TransPerfect (2021-10 – 2022-02)

Conducted QA on transcription projects ensuring accuracy and strict guideline adherence across different audio formats.

• Conducted QA on transcription projects, ensuring accuracy and strict guideline adherence
• Processed high volumes of tasks efficiently while maintaining consistent quality standards
• Managed outputs across different audio types and formats, meeting all project deadlines

Content Coordinator at Ricasi Consultancy (2019-01 – 2019-10)

Managed and published job postings with accuracy and strict attention to formatting standards.

• Managed and published job postings with accuracy, consistency, and strict attention to formatting standards
• Improved readability and formatting of content to meet quality benchmarks
• Supported content workflow and ensured timely delivery of all outputs

Diploma in ICT – KNEC, Nairobi, Kenya (2023-01 – 2024-12)

Bootcamp in Software Engineering – Remote (2025-02 – 2025-08)

CCNA in Networking – JKUAT, Nairobi, Kenya (2016-01 – 2016-08)