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Wellington Phiri

Wellington Phiri

AI Trainer / Evaluator | RWS Contract / Remote

South Africa flagJohannesburg, South Africa
$10.00/hrExpertOtherOneformaLabel Studio

Key Skills

Software

Other
OneFormaOneForma
Label StudioLabel Studio
LabelboxLabelbox
HiveMindHiveMind
CrowdSourceCrowdSource

Top Subject Matter

AI Model Training and Evaluation
AI Chatbot Logic and Workflow Automation
Legal Services & Contract Review

Top Data Types

ImageImage
TextText
VideoVideo
DocumentDocument

Top Task Types

Bounding Box
Classification
Evaluation Rating
Translation Localization
RLHF

Freelancer Overview

AI Trainer / Evaluator | RWS Contract / Remote. Brings 8+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Internal, Proprietary Tooling, and Other. Education includes Diploma, Alison Online Learning (2024) and National Senior Certificate, JZ Moyo High School. AI-training focus includes data types such as Text and labeling workflows including RLHF, Evaluation, and Rating.

ExpertEnglishZulu

Labeling Experience

AI Automation Specialist | Freelance/Upwork

OtherText
Provided freelance AI automation and chatbot evaluation services to business clients via Upwork. Refined chatbot dialogue, logic flows, and response clarity with emphasis on reducing model hallucinations. Conducted functional tests of lead generation and booking automation systems using AI tools. • Evaluated and rated AI chatbot outputs. • Recommended iteration improvements based on behavior analysis. • Conducted QA on AI-enhanced automation for accuracy. • Ensured AI logic aligned with client business use cases.

Provided freelance AI automation and chatbot evaluation services to business clients via Upwork. Refined chatbot dialogue, logic flows, and response clarity with emphasis on reducing model hallucinations. Conducted functional tests of lead generation and booking automation systems using AI tools. • Evaluated and rated AI chatbot outputs. • Recommended iteration improvements based on behavior analysis. • Conducted QA on AI-enhanced automation for accuracy. • Ensured AI logic aligned with client business use cases.

2024 - Present

AI Trainer / Evaluator | RWS Contract / Remote

TextRLHF
Served as an AI Trainer responsible for evaluating and improving AI-generated text responses for greater accuracy and compliance. Work involved rigorous assessment of output, correction of logical and safety issues, and adherence to policy guidelines. Collaborated with technical teams to flag policy violations and participated in model iteration cycles. • Evaluated response coherence and identified model hallucinations. • Corrected factual errors and ensured high safety standards. • Documented common failure cases and collaborated on improvements. • Performed high-focus, qualitative tasks in a remote environment.

Served as an AI Trainer responsible for evaluating and improving AI-generated text responses for greater accuracy and compliance. Work involved rigorous assessment of output, correction of logical and safety issues, and adherence to policy guidelines. Collaborated with technical teams to flag policy violations and participated in model iteration cycles. • Evaluated response coherence and identified model hallucinations. • Corrected factual errors and ensured high safety standards. • Documented common failure cases and collaborated on improvements. • Performed high-focus, qualitative tasks in a remote environment.

2022 - 2023

Education

A

Alison Online Learning

Diploma, Bookkeeping and Payroll

Diploma
2024 - 2024
U

University of Witwatersrand

BCom Accounting, Accounting

BCom Accounting
2019 - 2023

Work History

P

Precise Projects

Finance Administrator

Johannesburg
2022 - 2023
M

ML Sakhile Mechanical and Civil Works

Administrative Assistant

Johannesburg
2018 - 2021