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John Milburn

John Milburn

AI Content Specialist & Language Quality Reviewer

MEXICO flag
Playa del Carmen, Mexico
$25.00/hrEntry Level

Key Skills

Software

No software listed

Top Subject Matter

Education & Language Assessment
Artificial Intelligence & Machine Learning
Content & Editorial

Top Data Types

AudioAudio
TextText
DocumentDocument

Top Task Types

Text Summarization
Question Answering
Text Generation
Evaluation Rating
Transcription
Classification

Freelancer Overview

Cambridge English Certified Speaking Examiner. Brings 13+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Internal and Proprietary Tooling. Education includes Bachelor of Arts with Honours, University of Sussex (2009) and Certificate in English Language Teaching to Adults, Cambridge Assessment English (2014). AI-training focus includes data types such as Audio and Text and labeling workflows including Evaluation and Rating.

Entry LevelEnglishSpanish

Labeling Experience

Cambridge English Certified Speaking Examiner

Audio
Assessed spoken English outputs against standardized rubrics for thousands of candidates. Consistently applied detailed linguistic criteria including fluency, coherence, lexical range, and grammatical accuracy. Maintained high inter-rater reliability and calibration through regular training and reviews. • Applied assessment rubrics to spoken English tasks • Evaluated multi-criteria verbal language performance • Mapped closely to RLHF and AI language output rating workflows • Judged at scale with a focus on reliable data labeling

Assessed spoken English outputs against standardized rubrics for thousands of candidates. Consistently applied detailed linguistic criteria including fluency, coherence, lexical range, and grammatical accuracy. Maintained high inter-rater reliability and calibration through regular training and reviews. • Applied assessment rubrics to spoken English tasks • Evaluated multi-criteria verbal language performance • Mapped closely to RLHF and AI language output rating workflows • Judged at scale with a focus on reliable data labeling

2014 - 2022

English Coordinator – Annotation QA Reviewer

Text
Reviewed and rated written English outputs for quality and compliance with established rubrics. Delivered detailed feedback and quality judgments reflecting prompt quality, grammar, and factual accuracy. Designed and implemented rubric-based assessments analogous to QA for annotation workflows. • Evaluated multi-author written outputs for language tasks • Managed complex assessment rubrics and annotation standards • Provided written feedback mirroring LLM output review • Trained contributors for consistent rubric application

Reviewed and rated written English outputs for quality and compliance with established rubrics. Delivered detailed feedback and quality judgments reflecting prompt quality, grammar, and factual accuracy. Designed and implemented rubric-based assessments analogous to QA for annotation workflows. • Evaluated multi-author written outputs for language tasks • Managed complex assessment rubrics and annotation standards • Provided written feedback mirroring LLM output review • Trained contributors for consistent rubric application

2014 - 2021

Education

C

Cambridge Assessment English

Certificate in Teaching Knowledge Test, English Language Teaching

Certificate in Teaching Knowledge Test
2016 - 2016
C

Cambridge Assessment English

Certificate in Speaking Examination, English Language Assessment

Certificate in Speaking Examination
2014 - 2014

Work History

C

Colegio Inglés

English Teacher & Cambridge Exam Lead

Playa del Carmen
2022 - Present
C

Cambridge English

Speaking Examiner

Riviera Maya
2014 - 2022