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Nisa Ergün

@nisaergn

Quality Assurance Analyst at Teleperformance improving AI data accuracy from 85% to 96% through audits and reviewer training.

Germany

Message

At Teleperformance, I audit data labeled by human reviewers to train AI decision-making, evaluate LLM outputs, and prepare AI accuracy reports. My RCA-driven trainings, guideline clarifications, and operational changes helped raise AI accuracy from 85% to 96%.

I audit 150 reviewers per week as part of a six-person QA team. I also run calibration sessions, track results in Excel and Google Sheets, and coach reviewers in English.

Previously, at Teleperformance, I reviewed online content against predefined policies and contributed to policy improvement. At Infomag Publishing, I led digital projects for Harvard Business Review Türkiye, Bloomberg Businessweek Türkiye, and CoinDesk Türkiye, with performance analysis and reporting.

Experience

Work history, roles, and key accomplishments

Current

Quality Assurance Analyst

Current

Teleperformance

Aug 2025 - Present (1 year 3 months)

Audit 150 human reviewers per week as part of a 6-person QA team, evaluating labeled data to train AI decision-making and preparing AI accuracy reports. Raised AI accuracy from 85% to 96% through root cause analysis, targeted trainings, and operational improvements.

AI Data Quality AI Training Data LLM Evaluation Data Annotation Data Labeling Quality Auditing Root Cause Analysis Accuracy Reporting Calibration Coaching Feedback Process Improvement Stakeholder Communication Excel Google Sheets

Trust and Safety Customer Expert

Teleperformance

Nov 2023 - Jul 2025 (1 year 8 months)

Reviewed and categorized online content against predefined policies and performed manual data work supporting AI training. Tracked emerging abuse patterns and contributed to continuous policy improvement.

Content Moderation Trust and Safety Policy Enforcement Data Annotation AI Training Data English Communication

Talent Acquisition Manager

AGT Consulting

Oct 2022 - Sep 2023 (11 months)

Ran recruitment strategies, active sourcing, candidate pipelines, and structured interviews in English.

Recruitment Sourcing Candidate Pipelines Interviewing English Communication

Senior Social Media & Digital Project Manager

Infomag Publishing

Aug 2020 - Oct 2022 (2 years 2 months)

Led digital projects for Harvard Business Review Türkiye, Bloomberg Businessweek Türkiye, and CoinDesk Türkiye, with performance analysis and reporting. Partnered with growth and sales stakeholders and managed digital projects end to end.

Digital Project Management Performance Analysis Reporting Stakeholder Management Social Media