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R

Richard Njoroge

Data Annotation Specialist (Contract) at Aligner AI

Kenya flagNairobi, Kenya
Expert

Key Skills

Software

No software listed

Top Subject Matter

Computer Vision
Autonomous Systems and Robotics
Legal Services & Contract Review

Top Data Types

ImageImage
TextText
DocumentDocument

Top Task Types

Bounding Box
Object Detection

Freelancer Overview

Data Annotation Specialist (Contract) at Aligner AI. Brings 4+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Internal and Proprietary Tooling. Education includes Bachelor of Pharmacy, Mount Kenya University (2017) and Associate of Applied Science, Bellevue College (2021). AI-training focus includes data types such as Image and labeling workflows including Bounding Box and Object Detection.

Expert

Labeling Experience

Data Annotation Specialist (Contract) at Aligner AI

ImageBounding Box
I performed high-volume image and video labeling using proprietary annotation tools for computer vision and machine learning models. I maintained a 98.7% labeling accuracy while annotating over 9,000 images and 600 video clips monthly and exceeded throughput targets. I followed detailed labeling guidelines, identified and flagged model failure cases, and collaborated with engineering to ensure data quality. • Used bounding boxes, polygons, semantic and instance segmentation, and key point labeling as primary annotation types. • Escalated ambiguous cases via internal systems to maintain consistency. • Tracked and reported progress and quality metrics. • Contributed to high-volume pipeline acceleration for computer vision tasks.

I performed high-volume image and video labeling using proprietary annotation tools for computer vision and machine learning models. I maintained a 98.7% labeling accuracy while annotating over 9,000 images and 600 video clips monthly and exceeded throughput targets. I followed detailed labeling guidelines, identified and flagged model failure cases, and collaborated with engineering to ensure data quality. • Used bounding boxes, polygons, semantic and instance segmentation, and key point labeling as primary annotation types. • Escalated ambiguous cases via internal systems to maintain consistency. • Tracked and reported progress and quality metrics. • Contributed to high-volume pipeline acceleration for computer vision tasks.

2024 - 2026

Computer Vision Data Labeler (Contract) at Outlier

ImageObject Detection
I labeled large-scale image and video datasets for object detection, tracking, and segmentation in autonomous systems and robotics. I handled annotation workloads of over 7,000 frames per week under tight deadlines while sustaining 97% accuracy. I adapted to updates in guidelines and tools, and performed self-quality checks and re-labeling for accuracy. • Worked on RGB, depth, and multi-view video data types. • Used internal proprietary tools for labeling and adapted to workflow updates. • Annotated for object detection and tracking in AI for autonomous systems. • Identified and documented model failure cases to support ongoing improvements.

I labeled large-scale image and video datasets for object detection, tracking, and segmentation in autonomous systems and robotics. I handled annotation workloads of over 7,000 frames per week under tight deadlines while sustaining 97% accuracy. I adapted to updates in guidelines and tools, and performed self-quality checks and re-labeling for accuracy. • Worked on RGB, depth, and multi-view video data types. • Used internal proprietary tools for labeling and adapted to workflow updates. • Annotated for object detection and tracking in AI for autonomous systems. • Identified and documented model failure cases to support ongoing improvements.

2023 - 2024

Image and Video Annotator (Contract) at Handshake

ImageBounding Box
I annotated images and short video sequences for computer vision applications using bounding boxes, semantic masks, pose estimation, and instance tracking. I worked on high-volume projects with strict accuracy requirements and consistently met throughput targets. I escalated ambiguous cases and reviewed low-quality annotations to ensure data integrity. • Used internal project-specific annotation tools. • Supported cleaner training data for computer vision models. • Focused on precision and accuracy in labeling work. • Regularly flagged inconsistent or inaccurate labels to enhance model training.

I annotated images and short video sequences for computer vision applications using bounding boxes, semantic masks, pose estimation, and instance tracking. I worked on high-volume projects with strict accuracy requirements and consistently met throughput targets. I escalated ambiguous cases and reviewed low-quality annotations to ensure data integrity. • Used internal project-specific annotation tools. • Supported cleaner training data for computer vision models. • Focused on precision and accuracy in labeling work. • Regularly flagged inconsistent or inaccurate labels to enhance model training.

2022 - 2023

Education

B

Bellevue College

Associate of Applied Science, Information Technology

Associate of Applied Science
2019 - 2021
I

Issaquah High School

High School Diploma, General Studies

High School Diploma
2015 - 2019

Work History

G

Goodlife Pharmacy

Pharmacist

Nairobi
2018 - 2021