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Muchiri Mwaura

@muchirimwaura

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Experienced data annotator with expertise in machine learning applications.

United Kingdom

Message

What I'm looking for

I am seeking opportunities that allow me to leverage my data annotation skills while contributing to innovative machine learning projects in a collaborative environment.

I am an experienced data annotator with six years of expertise in data labelling, analysis, and online research for machine learning applications. My proficiency spans semantic and instance segmentation, 3D video and LiDAR annotation, and text transcription. I excel at handling large datasets and conducting content analysis, which has allowed me to contribute significantly to AI and machine learning workflows.

Throughout my career, I have collaborated closely with teams to enhance labelling accuracy and ensure data quality. At Labelbox, Inc., I provided expert data annotation services, led efforts in data labelling for object detection, and oversaw quality control for data labels. My previous roles at Lionbridge and Scale AI further honed my skills in managing complex projects and preparing high-quality training data for machine learning models.

Experience

Work history, roles, and key accomplishments

Current

Machine Learning Data Annotator

Current

Labelbox, Inc.

Mar 2023 - Jan 2025 (1 year 10 months)

Provided expert data annotation services for machine learning projects, specializing in 3D video and LiDAR data. Conducted research to support the training of large language models and led efforts in data labelling for object detection, ensuring high-quality outputs.

Data Annotation Machine Learning Data Labeling Quality Control Research Object Detection Teamwork

Data Analyst

Lionbridge

Jan 2022 - Feb 2023 (1 year 1 month)

Managed complex semantic and instance segmentation projects for large datasets. Conducted data analysis to validate machine learning training data, enhancing model accuracy and providing insights for online engagement strategies.

Data Analysis Machine Learning Data Quality Research

Data Annotator

Scale AI

Jan 2021 - Jan 2022 (1 year)

Provided detailed transcription services for diverse datasets, supporting large language model development. Enhanced data relevance through meticulous labelling and contributed to tool development for annotation workflows.

Data Annotation Transcription Machine Learning Tools Developer Data Relevance Quality Assurance Research

Data Annotation Intern

CloudFactory USA LLC

Jun 2018 - Dec 2020 (2 years 6 months)

Supported research, semantic segmentation, and transcription for various data projects. Performed detailed 3D video and LiDAR annotation tasks, achieving high accuracy and contributing to content strategy insights.

Data Annotation 3D Annotation Transcription Research Content Strategy Performance Metrics High Accuracy

Education

Degrees, certifications, and relevant coursework

University College London

Bachelor of Science, Data Science

2014 - 2018

Studied Data Science, focusing on data analysis, machine learning, and data annotation techniques. Developed skills in handling large datasets and applying analytical methods to solve complex problems.