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Precious Obiozor

Data Labelling Analyst

United Kingdom flagLondon, United Kingdom
Expert

Key Skills

Software

No software listed

Top Subject Matter

AI Content Moderation
Trust & Safety
Quality Assurance

Top Data Types

TextText
DocumentDocument

Top Task Types

Red TeamingRed Teaming
Fine-tuningFine-tuning

Freelancer Overview

Data Labelling Analyst. Brings 8+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Internal and Proprietary Tooling. Education includes Bachelor of Science, ATU Galway Mayo and Bachelor of Science with Honors, University of Derby. AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Red Teaming.

Expert

Labeling Experience

Data Labelling Analyst

Text
As a Data Labelling Analyst at Meta, I designed and maintained golden-set benchmarks to calibrate AI content moderation systems. My work focused on evaluating vendor performance through structured feedback and ongoing quality improvement measures. I consistently processed and reviewed large volumes of moderation cases to uphold high accuracy standards. • Led vendor calibration initiatives and self-QA routines • Maintained a 95% weekly quality score across 300+ daily cases • Regularly analysed policy violation and content flag data to guide process innovation • Managed vendor relationships to ensure adherence to quality and compliance requirements

As a Data Labelling Analyst at Meta, I designed and maintained golden-set benchmarks to calibrate AI content moderation systems. My work focused on evaluating vendor performance through structured feedback and ongoing quality improvement measures. I consistently processed and reviewed large volumes of moderation cases to uphold high accuracy standards. • Led vendor calibration initiatives and self-QA routines • Maintained a 95% weekly quality score across 300+ daily cases • Regularly analysed policy violation and content flag data to guide process innovation • Managed vendor relationships to ensure adherence to quality and compliance requirements

2025 - Present

Content Adversarial Red Team Analyst

TextRed Teaming
As a Content Adversarial Red Team Analyst at Google, I designed and executed adversarial prompt testing on large language models (LLMs) to detect misuse and vulnerabilities. I translated findings into remediation actions and contributed to continuous product safety improvements. My responsibilities included cross-functional collaboration and training analysts in Trust & Safety procedures. • Conducted LLM red teaming to identify and document failure modes • Developed SQL-driven policy violation reports and presented insights • Provided launch-readiness guidance to prevent high-risk escalations • Mentored new analysts and established quality standards for model testing

As a Content Adversarial Red Team Analyst at Google, I designed and executed adversarial prompt testing on large language models (LLMs) to detect misuse and vulnerabilities. I translated findings into remediation actions and contributed to continuous product safety improvements. My responsibilities included cross-functional collaboration and training analysts in Trust & Safety procedures. • Conducted LLM red teaming to identify and document failure modes • Developed SQL-driven policy violation reports and presented insights • Provided launch-readiness guidance to prevent high-risk escalations • Mentored new analysts and established quality standards for model testing

2024 - 2025

Strategic Service Quality & Process Transformation Specialist

TextFine Tuning
As a Strategic Service Quality & Process Transformation Specialist at Google, I contributed to AI model training to calibrate outputs to standard requirements. My involvement included leveraging operational expertise to guide machine learning model fine-tuning and quality assurance. I liaised closely with engineering and policy teams to ensure high-quality, real-world relevant outcomes. • Supported organization-wide QA frameworks for data labeling and model training • Provided operational feedback for AI fine-tuning and testing • Enhanced digital process reliability via continuous improvement protocols • Delivered strategic performance and risk insights based on audit findings

As a Strategic Service Quality & Process Transformation Specialist at Google, I contributed to AI model training to calibrate outputs to standard requirements. My involvement included leveraging operational expertise to guide machine learning model fine-tuning and quality assurance. I liaised closely with engineering and policy teams to ensure high-quality, real-world relevant outcomes. • Supported organization-wide QA frameworks for data labeling and model training • Provided operational feedback for AI fine-tuning and testing • Enhanced digital process reliability via continuous improvement protocols • Delivered strategic performance and risk insights based on audit findings

2019 - 2020

Education

C

CCT College Dublin

Diploma, Systems Security and Networks

Diploma
Not specified
U

University of Derby

Bachelor of Science with Honors, Computing and Information Technologies

Bachelor of Science with Honors
Not specified

Work History

T

TikTok Technologies

Strategic Operations & Policy Implementation Analyst

London
2020 - 2024
G

Google

Strategic Service Quality & Process Transformation Specialist

Dublin
2019 - 2020