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Sharon Kamau

Sharon Kamau

Freelance AI Data Annotator (OutlierAI)

Kenya flagNairobi, Kenya
$25.00/hrExpertRemotasksLabelbox

Key Skills

Software

RemotasksRemotasks
LabelboxLabelbox

Top Subject Matter

Large Language Models
Nlp Domain Expertise
Generative AI

Top Data Types

TextText
ImageImage
AudioAudio

Top Task Types

RLHFRLHF
Bounding BoxBounding Box
ClassificationClassification

Freelancer Overview

Freelance AI Data Annotator (OutlierAI). Brings 7+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include OutlierPlatform, Remotasks, and Labelbox. Education includes Bachelor of Science, University of Nairobi (2022). AI-training focus includes data types such as Text and Image and labeling workflows including RLHF, Bounding Box, and Classification.

ExpertEnglishDutch

Labeling Experience

Freelance AI Data Annotator (OutlierAI)

TextRLHF
As a Freelance AI Data Annotator for OutlierAI, I annotated and evaluated training data for large language models and generative AI systems. I performed prompt-response ranking, response evaluation, and RLHF tasks, consistently maintaining high annotation accuracy. I supported NLP dataset labeling, data QA, and peer reviews to ensure high standards and measurable improvements in model performance. • Performed text classification, intent labeling, and linguistic annotation using established guidelines. • Reviewed AI-generated outputs for factual accuracy, instruction adherence, and safety. • Exceeded daily quotas and participated in high-complexity projects. • Used OutlierPlatform and supported continual improvement for LLM models.

As a Freelance AI Data Annotator for OutlierAI, I annotated and evaluated training data for large language models and generative AI systems. I performed prompt-response ranking, response evaluation, and RLHF tasks, consistently maintaining high annotation accuracy. I supported NLP dataset labeling, data QA, and peer reviews to ensure high standards and measurable improvements in model performance. • Performed text classification, intent labeling, and linguistic annotation using established guidelines. • Reviewed AI-generated outputs for factual accuracy, instruction adherence, and safety. • Exceeded daily quotas and participated in high-complexity projects. • Used OutlierPlatform and supported continual improvement for LLM models.

2024 - Present
Remotasks

Freelance Data Annotator / AI Trainer (Remotasks)

RemotasksImageBounding Box
As a Freelance Data Annotator and AI Trainer at Remotasks, I labeled large datasets for computer vision projects involving object detection, segmentation, and image classification. I created bounding boxes, polygons, semantic segmentation masks, and keypoint annotations for autonomous driving and visual recognition use cases. I performed data review, QA checks, and applied taxonomy standards to support accurate and consistent annotations. • Delivered thousands of accurately annotated samples with top quality scores. • Reduced rework rates through high first-pass accuracy. • Collaborated with remote teams to meet volume and deadline targets. • Utilized Remotasks and CVAT platforms for image and video annotation.

As a Freelance Data Annotator and AI Trainer at Remotasks, I labeled large datasets for computer vision projects involving object detection, segmentation, and image classification. I created bounding boxes, polygons, semantic segmentation masks, and keypoint annotations for autonomous driving and visual recognition use cases. I performed data review, QA checks, and applied taxonomy standards to support accurate and consistent annotations. • Delivered thousands of accurately annotated samples with top quality scores. • Reduced rework rates through high first-pass accuracy. • Collaborated with remote teams to meet volume and deadline targets. • Utilized Remotasks and CVAT platforms for image and video annotation.

2022 - 2023
Labelbox

Freelance AI / Data Annotation Specialist (Cloudworkers Data Projects)

LabelboxTextClassification
As a Freelance AI / Data Annotation Specialist with Cloudworkers Data Projects, I performed text labeling, content categorization, and sentiment annotation for AI training datasets. I contributed to moderation, classification, and conversational data annotation to improve chatbots and dialogue models. I also conducted speech tagging and transcription for language data tasks across multiple client campaigns. • Maintained strong client satisfaction with repeat assignments. • Managed multiple projects simultaneously and met all deadlines. • Recognized for attention to detail and reliable turnaround. • Used Labelbox, Doccano, and Prodigy for text and audio annotation work.

As a Freelance AI / Data Annotation Specialist with Cloudworkers Data Projects, I performed text labeling, content categorization, and sentiment annotation for AI training datasets. I contributed to moderation, classification, and conversational data annotation to improve chatbots and dialogue models. I also conducted speech tagging and transcription for language data tasks across multiple client campaigns. • Maintained strong client satisfaction with repeat assignments. • Managed multiple projects simultaneously and met all deadlines. • Recognized for attention to detail and reliable turnaround. • Used Labelbox, Doccano, and Prodigy for text and audio annotation work.

2021 - 2022

Education

U

University of Nairobi

Bachelor of Science, Computer Science

Bachelor of Science
2022 - 2022

Work History

S

Self-Employed

Online Research and Data Entry Specialist

Nairobi
2020 - Present