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Peterson Pinheiro

@petersonpinheiro

AI Evaluation Specialist at Tech Mahindra who assessed LLM factuality and safety, maintained QA above 93%, and added cultural nuance to evaluation metrics.

Brazil

Message

At Tech Mahindra, I evaluated AI-generated responses for factuality, safety, and content severity, maintaining a QA score above 93%. I also returned actionable feedback and contributed cultural nuances to evaluation metrics for localized LLM development.

Earlier, I moderated live content at ByteDance S.A. (TikTok), supported betting platform users at SkillOnNet Ltd., and advised advertisers on policy compliance at Kuaishou Corp. I bring a background in Information Technology and Portuguese and English languages to work in AI evaluation and content moderation.

Experience

Work history, roles, and key accomplishments

Reliability Rater

Tech Mahindra

Nov 2025 - May 2026 (6 months)

Evaluated AI-generated responses in real-time, focusing on factuality, safety, and content severity. Achieved QA score above 93% and provided feedback to improve AI accuracy.

AI Evaluation Content Moderation Quality Assurance LLM Data Annotation

Bilingual Customer Support Specialist

SkillOnNet Ltd.

May 2024 - Nov 2025 (1 year 6 months)

Provided specialized support for a betting platform, resolving complex issues and guiding users on software features and financial processes. Promoted responsible gaming and collaborated with internal teams to improve services.

Customer Support KYC Financial Processes Regulatory Compliance Responsible Gaming

Bilingual Ad Content Specialist

Kuaishou Corp.

Jan 2023 - Mar 2024 (1 year 2 months)

Advised advertisers on policy compliance and ad creative best practices to prevent rejections and drive campaign success. Ensured content quality and compliance across campaigns.

Advertising Content Policy Compliance Customer Success Strategic Consulting

Content Moderator – Live Streaming

ByteDance S.A. (TikTok)

Apr 2021 - Jan 2023 (1 year 9 months)

Monitored live broadcasts and chat interactions to ensure compliance with platform guidelines. Removed inappropriate content and collaborated with teams to mitigate risks.

Content Moderation Live Streaming Risk Mitigation Policy Enforcement