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Sarah “sarah” Wagner

Sarah “sarah” Wagner

Head of User Research

Germany flagHamburg, Germany
$40.00/hrExpertData Annotation Tech

Key Skills

Software

Data Annotation TechData Annotation Tech

Top Subject Matter

UX Research
AI Product Development
B2C & SaaS Digital Products

Top Data Types

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Top Task Types

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Freelancer Overview

Head of User Research – Brings 14+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include ai product development Education includes Diploma in Psychology, TU Dresden (2013).

ExpertEnglishGerman

Labeling Experience

Head of User Research – AI Workflow & Data Labeling Initiatives

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I introduced AI-assisted workflows into user research operations to streamline study setup and analysis for the team. I led the design and implementation of a custom GPT-based repository offering research and product teams direct access to labeled user knowledge. Responsibilities included setting guidelines for responsible AI use in labeling processes and maintaining scalable insight systems. • Integrated AI tools for automated analysis and knowledge accessibility • Established labeling policies for ethical and accurate user data handling • Designed and maintained an internal, AI-assisted System of Insights • Led workshops enabling researchers to adopt new annotation technology

I introduced AI-assisted workflows into user research operations to streamline study setup and analysis for the team. I led the design and implementation of a custom GPT-based repository offering research and product teams direct access to labeled user knowledge. Responsibilities included setting guidelines for responsible AI use in labeling processes and maintaining scalable insight systems. • Integrated AI tools for automated analysis and knowledge accessibility • Established labeling policies for ethical and accurate user data handling • Designed and maintained an internal, AI-assisted System of Insights • Led workshops enabling researchers to adopt new annotation technology

2025 - Present

Senior UX Researcher – AI-Assisted Data Annotation and Feedback Loops

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I developed and implemented internal research processes for AI-driven product features, employing continuous data annotation and rapid feedback cycles. My work focused on integrating AI-assisted sentiment analysis, feature-level user satisfaction measurement, and automated open-text response classification. This workflow enabled actionable insights for product iteration via labeled user feedback data. • Designed annotation protocols for rapid, reliable user sentiment evaluation • Led live dashboarding of annotated insights for product reviews • Implemented AI-based labeling for user satisfaction and open feedback • Collaborated on multi-method research for ongoing product improvement

I developed and implemented internal research processes for AI-driven product features, employing continuous data annotation and rapid feedback cycles. My work focused on integrating AI-assisted sentiment analysis, feature-level user satisfaction measurement, and automated open-text response classification. This workflow enabled actionable insights for product iteration via labeled user feedback data. • Designed annotation protocols for rapid, reliable user sentiment evaluation • Led live dashboarding of annotated insights for product reviews • Implemented AI-based labeling for user satisfaction and open feedback • Collaborated on multi-method research for ongoing product improvement

2022 - 2025

Education

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TU Dresden

Diploma in Psychology, Psychology

Diploma in Psychology
2008 - 2013

Work History

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Xing

Head of User Research

Hamburg
2025 - Present
X

Xing

Senior UX Researcher

Hamburg
2022 - 2025