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John Preyer is a user experience and accessibility specialist with over 10 years of experience evaluating how people interact with digital systems across web, applications, and complex interfaces. As a DHS Trusted Tester, he brings a trained eye for usability, accessibility, and inclusive design, focusing on how users access, understand, and navigate content in multiple ways. His background in IT, compliance, and UX enables him to provide clear, structured, and actionable feedback that improves usability, clarity, and overall user experience. John approaches playtesting with both a player’s perspective and a systems-thinking mindset, identifying friction points, usability issues, and opportunities to make experiences more intuitive and engaging for a broad audience.…John Preyer is a user experience and accessibility specialist with over 10 years of experience evaluating how people interact with digital systems across web, applications, and complex interfaces. As a DHS Trusted Tester, he brings a trained eye for usability, accessibility, and inclusive design, focusing on how users access, understand, and navigate content in multiple ways. His background in IT, compliance, and UX enables him to provide clear, structured, and actionable feedback that improves usability, clarity, and overall user experience. John approaches playtesting with both a player’s perspective and a systems-thinking mindset, identifying friction points, usability issues, and opportunities to make experiences more intuitive and engaging for a broad audience.

John Preyer

UX Designer, UI Designer, Product Designer, +2

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John Preyer is a user experience and accessibility specialist with over 10 years of experience evaluating how people interact with digital systems across web, applications, and complex interfaces. As a DHS Trusted Tester, he brings a trained eye for usability, accessibility, and inclusive design, focusing on how users access, understand, and navigate content in multiple ways. His background in IT, compliance, and UX enables him to provide clear, structured, and actionable feedback that improves usability, clarity, and overall user experience. John approaches playtesting with both a player’s perspective and a systems-thinking mindset, identifying friction points, usability issues, and opportunities to make experiences more intuitive and engaging for a broad audience.…John Preyer is a user experience and accessibility specialist with over 10 years of experience evaluating how people interact with digital systems across web, applications, and complex interfaces. As a DHS Trusted Tester, he brings a trained eye for usability, accessibility, and inclusive design, focusing on how users access, understand, and navigate content in multiple ways. His background in IT, compliance, and UX enables him to provide clear, structured, and actionable feedback that improves usability, clarity, and overall user experience. John approaches playtesting with both a player’s perspective and a systems-thinking mindset, identifying friction points, usability issues, and opportunities to make experiences more intuitive and engaging for a broad audience.

Available to hire

John Preyer is a user experience and accessibility specialist with over 10 years of experience evaluating how people interact with digital systems across web, applications, and complex interfaces. As a DHS Trusted Tester, he brings a trained eye for usability, accessibility, and inclusive design, focusing on how users access, understand, and navigate content in multiple ways. His background in IT, compliance, and UX enables him to provide clear, structured, and actionable feedback that improves usability, clarity, and overall user experience. John approaches playtesting with both a player’s perspective and a systems-thinking mindset, identifying friction points, usability issues, and opportunities to make experiences more intuitive and engaging for a broad audience.

Skills

Figma

Adobe Photoshop

Jira

Experience Level

Figma

Expert

Adobe Photoshop

Expert

Jira

Expert

Language

English

Fluent

Spanish; Castilian

Beginner

Portuguese

Beginner

Work Experience

User Experience & Accessibility Specialist at Centers for Disease Control and Prevention (CDC) – Behavioural Risk Factor Surveillance System (BRFSS) & OneLab

August 1, 2016 - Present

Evaluated complex digital platforms used by public health professionals and the general public, focusing on usability, clarity, and accessibility of interfaces and content. Assessed how diverse users interact with data-driven systems, training platforms, and public-facing resources, identifying friction points and usability barriers. Applied accessibility and inclusive design principles to ensure content could be accessed and understood through multiple interaction methods. Reviewed navigation structures, workflows, interface feedback, and content presentation to improve user comprehension and task completion. Provided structured, actionable feedback to stakeholders on user experience issues, accessibility gaps, and design improvements. Leveraged DHS Trusted Tester expertise to analyse user interaction patterns and identify issues affecting usability, accessibility, and overall experience quality.

User Experience & Accessibility Specialist at Federal, Enterprise, and Consulting Environments

January 1, 2013 - Present

Evaluated digital interfaces, workflows, and user interactions across websites, applications, and documents. Identified usability issues, accessibility barriers, and interaction inconsistencies affecting user experience. Provided clear, structured feedback through walkthroughs, interviews, and summaries to support interactive improvement. Tested interfaces using multiple interaction methods to assess clarity, feedback, and ease of use. Applied accessibility principles to improve navigation flow, readability, and interaction consistency.