Peter Wangu

Key Skills

Software

Other

Data Annotation Tech

Dataloop

Google Cloud Vertex AI

Remotasks

CVAT

Labelbox

Toloka

Appen

Top Subject Matter

Computer Vision

E-commerce Product Data & Taxonomy

Natural Language Processing

Top Data Types

Audio

Video

Text

Image

Top Task Types

Transcription

Text Generation

Polygon

Polyline

Cuboid

Object Detection

Question Answering

Text Summarization

Data Collection

Classification

Bounding Box

Point Key Point

Evaluation Rating

Tracking

RLHF

Freelancer Overview

Senior AI Trainer & Data Specialist. Brings 6+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include CVAT, Labelbox, and Toloka. AI-training focus includes data types such as Video, Image, and Text and labeling workflows including Tracking, Bounding Box, and RLHF.

Labeling Experience

AI Trainer - RLHF & Text Annotation

TolokaTextRLHF

I executed high-complexity RLHF tasks including ranking model responses for accuracy, safety, and technical reasoning. My role involved interacting with natural language models and providing human feedback to improve their performance. The outcomes contributed to robust AI systems for organizations such as OpenAI and Anthropic. • Ranked and evaluated language model completions. • Identified and flagged safety and technical errors. • Provided structured feedback for continuous model refinement. • Worked on Remotasks and Toloka for annotation tasks.

I executed high-complexity RLHF tasks including ranking model responses for accuracy, safety, and technical reasoning. My role involved interacting with natural language models and providing human feedback to improve their performance. The outcomes contributed to robust AI systems for organizations such as OpenAI and Anthropic. • Ranked and evaluated language model completions. • Identified and flagged safety and technical errors. • Provided structured feedback for continuous model refinement. • Worked on Remotasks and Toloka for annotation tasks.

2021 - Present

AI Trainer & Image Annotation Specialist

LabelboxImageBounding Box

In my role as an AI Trainer, I provided comprehensive image annotation using bounding boxes. This entailed object detection and classification for large-scale datasets relevant to e-commerce and research. The work supported machine learning models for OpenAI, Anthropic, and similar organizations. • Maintained high accuracy in object classification. • Conducted annotation quality validation and feedback. • Leveraged CVAT, Labelbox, and proprietary tools. • Supported product image annotation for platforms like Jumia and Amazon.

In my role as an AI Trainer, I provided comprehensive image annotation using bounding boxes. This entailed object detection and classification for large-scale datasets relevant to e-commerce and research. The work supported machine learning models for OpenAI, Anthropic, and similar organizations. • Maintained high accuracy in object classification. • Conducted annotation quality validation and feedback. • Leveraged CVAT, Labelbox, and proprietary tools. • Supported product image annotation for platforms like Jumia and Amazon.

2021 - Present

Senior AI Trainer & Data Specialist

CVATVideoTracking

As a Senior AI Trainer & Data Specialist, I performed video annotation for computer vision projects that involved temporal tracking. My work ensured accurate tracking of objects and actions across frames, maintaining over 99% accuracy. I contributed to industry-leading datasets for clients like OpenAI and Google DeepMind. • Specialized in temporal tracking and video object annotation. • Integrated quality assurance protocols for labeled data. • Collaborated with multidisciplinary teams on annotation standards. • Utilized CVAT and Remotasks platforms for project delivery.

As a Senior AI Trainer & Data Specialist, I performed video annotation for computer vision projects that involved temporal tracking. My work ensured accurate tracking of objects and actions across frames, maintaining over 99% accuracy. I contributed to industry-leading datasets for clients like OpenAI and Google DeepMind. • Specialized in temporal tracking and video object annotation. • Integrated quality assurance protocols for labeled data. • Collaborated with multidisciplinary teams on annotation standards. • Utilized CVAT and Remotasks platforms for project delivery.

2021 - Present

AI Data Annotator and Transcription Support

AppenAudioTranscription

I participated in audio data transcription and labeling projects to support the development of AI systems. My responsibilities included annotating and evaluating speech data to improve dataset accuracy and quality. This work was part of an AI data annotation and training certificate program. • Conducted detailed audio transcription to identify and segment speech elements. • Ensured the consistency and format of labeled data following project guidelines. • Assisted in preparing annotated audio datasets for machine learning training. • Maintained high accuracy through quality assurance checks.

I participated in audio data transcription and labeling projects to support the development of AI systems. My responsibilities included annotating and evaluating speech data to improve dataset accuracy and quality. This work was part of an AI data annotation and training certificate program. • Conducted detailed audio transcription to identify and segment speech elements. • Ensured the consistency and format of labeled data following project guidelines. • Assisted in preparing annotated audio datasets for machine learning training. • Maintained high accuracy through quality assurance checks.

2021 - Present

Education

Work History