MMMildred Mkhuntho
@mildredmkhuntho
Senior AI data trainer and QA analyst optimizing LLM safety and performance.
PolandWhat I'm looking for
I am a Senior AI Data Trainer and Quality Analyst with hands-on experience training, evaluating, and assuring the quality of large language model outputs. I progressed from junior administrative and customer-facing roles into senior responsibility within AI data production environments.
In my current role I lead quality assurance for AI training data, evaluate model outputs for accuracy, safety, and compliance, and provide structured feedback to improve performance. I collaborate closely with QA and engineering teams and support the development of junior trainers.
Previously I performed high-quality annotation, ranking, and comparative evaluation for LLM training, consistently meeting productivity and quality benchmarks while identifying and mitigating risks such as bias and hallucinations.
I bring strong documentation, analytical, and process improvement skills, plus hands-on experience with prompt compliance, AI risk analysis, and cross-functional collaboration to enhance model reliability and safety.
Experience
Work history, roles, and key accomplishments
Senior AI Data Trainer
Invisible Technologies
Jan 2025 - Present (1 year)
Lead quality assurance for AI training data, evaluating LLM outputs for accuracy, safety, and compliance while mentoring junior trainers and improving annotation processes.
AI Data Trainer
Invisible Technologies
Jun 2024 - Dec 2024 (6 months)
Performed high-quality annotation and ranked model responses, flagged bias and hallucinations, and maintained productivity and quality benchmarks to enhance model reliability.
AI Evaluator
Outlier
Jan 2024 - May 2024 (4 months)
Evaluated AI outputs using strict rubrics and performed comparative ranking to provide actionable feedback that improved model performance.
Customer Service Representative
Foundever
Jun 2023 - Dec 2023 (6 months)
Handled inbound customer support via live chat and email, resolved issues efficiently, and maintained accurate CRM records while meeting service-level agreements.
Director's Personal Assistant
Trust Me Security
Jan 2019 - Feb 2023 (4 years 1 month)
Provided executive support including schedule and correspondence management, coordinated complex calendars, and facilitated cross-departmental communication to streamline workflows.
Customer Service / Library Assistant
Sasol Library
Apr 2016 - Dec 2018 (2 years 8 months)
Supported students and staff with library services and digital resources, managed circulation, and performed data entry and systems tasks to maintain library operations.
Company Secretary's Assistant
Tragic Security
Nov 2014 - Dec 2015 (1 year 1 month)
Assisted with administrative and compliance tasks, prepared documentation, and maintained accurate records to support corporate secretary functions.
Education
Degrees, certifications, and relevant coursework
WWSB, Warsaw
Bachelor of Science, Information Technology Management
2023 - 2025
BSc in Information Technology Management program attended at WWSB in Warsaw from March 2023 to November 2025.
USUniversity of the Free State
Bachelor of Commerce, Commerce (Law)
2016 - 2018
Completed a Bachelor of Commerce in Law at the University of the Free State from January 2016 to December 2018.
Tech stack
Software and tools used professionally
Availability
Location
PolandAuthorized to work in
Job categories
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