Available to hire
I’m Demiris McMullin, a senior product design leader focused on building scalable, enterprise-grade digital ecosystems. I guide end-to-end web, mobile, iOS and Android experiences, leveraging 13+ years of experience across retail, fintech, insurance, and hospitality to turn complex requirements into measurable, high-performing platforms.
I excel at systems thinking, growth experimentation, and design governance—partnering with product, engineering, and executives to align UX initiatives with OKRs and North Star metrics. I love transforming intricate environments into cohesive design systems and measurable outcomes that drive revenue, adoption, and accessibility compliance.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Work Experience
Lead UX Product Designer at Hilton
August 1, 2025 - August 22, 2025Led end-to-end UX design initiatives including Hilton’s Free Night Certificate and American Express card enhancements, driving 100% reward redemption and improved customer satisfaction. Designed secure identity verification and fraud-prevention workflows in Figma, leading usability testing that minimized design iterations. Collaborated cross-functionally in Agile environments to ship scalable, WCAG/ADA-compliant experiences across regulated web and mobile platforms, while maintaining and evolving design systems for accessibility and brand consistency. Simplified complex workflows using AI and automation to streamline digital processes.
Lead UX Product Designer at Hilton
August 1, 2025 - August 22, 2025Led end-to-end UX design for initiatives like Hilton’s Free Night Certificate and American Express Card Enhancements, significantly boosting reward redemption rates and customer satisfaction. Partnered with B2B stakeholders to deliver WCAG/ADA-compliant products across web and mobile platforms. Designed secure identity verification and fraud-prevention workflows using Figma, conducted user research, discovery workshops, prototyping, and usability testing to align solutions with business goals while reducing iteration cycles. Collaborated with cross-functional teams in Agile environments and maintained Hilton’s enterprise design system focusing on accessibility, brand consistency, and usability. Simplified complex workflows leveraging AI and automation to enhance efficiency.
Lead UX Product Designer at Hilton
June 27, 2025 - August 7, 2025Led UX design efforts for Hilton’s Free Night Certificate and American Express Card Enhancement projects, crafting secure and intuitive user flows that enhanced redemption rates and customer satisfaction. Collaborated with B2B partners including American Express to deliver accessible experiences across web and mobile platforms aligned with WCAG/ADA standards. Designed end-to-end user journeys integrating identity verification, authentication, and fraud prevention in Figma. Facilitated discovery workshops, user research, and usability testing to validate design decisions and ensure alignment with user needs and business goals. Partnered cross-functionally with product, content, and engineering teams utilizing Agile tools like JIRA and Confluence to deliver scalable, data-driven design solutions within Hilton’s design system.
Senior Product Designer at Lowe's
March 1, 2024 - March 1, 2026Owned end-to-end commerce redesign impacting 10M+ users annually across Home, PLP, PDP, Cart, and Checkout; increased task completion by 35% and drove $12M incremental revenue through structured experimentation. Led data-driven UX, designed scalable product cards, recommendation modules, and AR/AI-powered experiences; established scalable component architecture and token governance in Figma to accelerate multi-team adoption and reduce accessibility defects.
Senior UX/UI Designer at Lowes
March 1, 2023 - August 22, 2025Designed compliant fintech workflows with a 100% success rate, notably for PODS (Performance on Demand) and Stashes digital enveloping projects focused on B2C users. Improved usability through journey mapping and prototyping, enhancing user engagement and satisfaction.
Senior UX/UI Designer at Lowes
March 1, 2023 - August 22, 2025Designed compliant fintech workflows achieving 100% success rate. Improved usability by creating journey maps and interactive prototypes for B2C products including PODS (Performance on Demand) and Stashes – Digital Enveloping.
Lead UX/UI User Experience Designer at Edward Jones
March 1, 2023 - August 7, 2025Improved login success rates by 38% by optimizing user flows and UI usability in collaboration with Agile teams. Reduced over 738 customer support hours by removing friction through heuristic evaluations and usability testing. Led more than 10 user research initiatives including interviews, surveys, and journey mapping which influenced product strategy. Managed end-to-end UX workstreams aligned with KPIs, user needs, and brand standards. Created high-fidelity wireframes, prototypes, and mockups in Figma, ensuring stakeholder alignment and validation during usability testing.
Lead UX/UI Designer at Edward Jones
January 1, 2023 - August 22, 2025Optimized B2C user login experience, increasing login success rates by 38% and saving over 738 support hours annually. Applied heuristic evaluations to identify usability improvements that enhanced customer access and satisfaction.
Lead UX/UI Designer at Edward Jones
January 1, 2023 - August 22, 2025Optimized and simplified B2C user login experience, increasing login success rates by 38% and saving over 738 support hours annually through heuristic evaluations.
Lead Product Designer at Hilton Worldwide
September 1, 2022 - April 1, 2024Directed global booking, authentication, and payment systems for 5M+ users annually; optimized funnel via experimentation and analytics, driving $6M incremental revenue. Reduced booking abandonment by 20% through redesigns of login, checkout, and payment flows. Led AI-powered chatbot ecosystem to streamline support, reducing calls by 15% and improving end-to-end booking.
Lead UX/UI Designer at USAA Insurance
June 1, 2022 - August 22, 2025Designed fintech workflows for B2C projects such as PODS and Stashes, achieving 100% success rates. Enhanced user experiences via journey mapping and prototyping to meet compliance and usability goals.
Lead UX/UI Designer at USAA Insurance
June 1, 2022 - August 22, 2025Designed compliant fintech workflows with a 100% success rate, improving usability through journey mapping and prototyping for B2C applications including PODS and Stashes – Digital Enveloping.
Lead UX/UI Designer at USAA Insurance
June 1, 2022 - August 7, 2025Led UX design for two successful B2C fintech products, PODS and Digital Enveloping, streamlining complex financial workflows in regulated environments. Designed end-to-end user experiences with journey maps, wireframes, and responsive prototypes across desktop and mobile platforms using Figma. Conducted extensive user research via interviews, usability testing, and heuristic evaluations driving data-informed decisions and continuous improvements. Collaborated across product management, engineering, and content teams ensuring alignment with user needs and business goals. Supported Agile product lifecycles with JIRA and Confluence and contributed to scalable design systems while presenting UX strategies to stakeholders.
Product Designer (Contract) at Edward Jones
March 1, 2022 - September 1, 2022Redesigned core banking portal, increasing digital self-service adoption by 20% and reducing support inquiries by 15% through usability testing and behavioral analytics. Expanded centralized design system components to improve UI consistency by 30%. Identified digital optimization opportunities contributing to improved member satisfaction.
Product Designer at USAA
March 1, 2021 - March 1, 2022Led end-to-end design for onboarding, account management, transaction history, and dashboard workflows for 2M+ users. Improved task success by 25% via information architecture redesign and mixed-methods research. Implemented scalable design tokens and accessibility standards to accelerate production efficiency.
Senior UX Designer at Progressive Insurance
March 1, 2021 - August 22, 2025Enhanced multi-platform insurance workflows improving efficiency and compliance. Improved dashboard experiences by structuring HTML, CSS, and JavaScript within SharePoint and WordPress platforms to enhance usability and accessibility.
Senior UX Designer at Progressive Insurance
March 1, 2021 - August 22, 2025Enhanced and redesigned multi-platform insurance workflows to improve efficiency and compliance. Enhanced dashboard experiences by structuring HTML, CSS, and JavaScript within SharePoint and WordPress platforms.
Sr. UX Designer at Progressive Insurance
March 1, 2021 - August 7, 2025Led UX/UI enhancements and redesign for the Multicultural Leadership Development Program (MLDP), updating outdated messaging and legacy content to align with leadership and reward development goals. Modernized end-to-end user experience applying scalable, responsive design patterns within updated design systems. Conducted content audits and collaborated cross-functionally to ensure revised messaging met accessibility standards (WCAG/ADA) and business requirements. Created high-fidelity wireframes and interactive prototypes in Figma to validate visual direction and improve engagement. Delivered a refreshed user experience that improved usability, brand consistency, and content clarity across digital touchpoints.
Senior UX Designer at Progressive Corporation
November 1, 2012 - March 1, 2021Led UX strategy for large-scale policy servicing and account management ecosystems serving 3M+ users. Modernized enterprise workflows, reduced navigation friction, and built reusable design system components aligned to WCAG 2.1 AA standards. Drove digital transformation across multi-team deployments.
Education
High school diploma at Cleveland School of the Arts
January 11, 2030 - August 7, 2025Associate degree at Rasmussen College
January 11, 2030 - August 7, 2025Bachelor’s degree at Wilmington University
January 11, 2030 - August 7, 2025Bachelor’s Degree at Wilmington University
August 1, 2023 - March 1, 2026Associate’s Degree at Rasmussen College
August 1, 2016 - August 1, 2018High School Diploma at Cleveland School of the Arts
August 1, 1999 - August 1, 2003Bachelor’s Degree at Wilmington University
August 1, 2023 - March 1, 2026Associate’s Degree at Rasmussen College
August 1, 2016 - August 1, 2018High School Diploma at Cleveland School of the Arts
August 1, 1999 - August 1, 2003Associate degree in Web Interaction at Rasmussen College
January 1, 2016 - December 31, 2018Bachelor’s degree in graphic design at Wilmington University
January 11, 2030 - March 5, 2026Qualifications
Nielsen Norman Group UX Certification Program
January 11, 2030 - August 7, 2025LinkedIn Learning Certificate of Completion
January 11, 2030 - August 7, 2025Google UX Design Professional Certificate
January 11, 2030 - August 7, 2025Plural Sight UX Certification
January 11, 2030 - August 7, 2025Nielsen Norman Group (NN/g) – UX Certification Program
January 11, 2030 - August 22, 2025Google – UX Design Professional Certificate
January 11, 2030 - August 22, 2025LinkedIn Learning – Certificate of Completion (UX/UI Design, Accessibility, Wireframing)
January 11, 2030 - August 22, 2025Pluralsight – UX Certification (User Experience Strategy, Information Architecture, UI Patterns)
January 11, 2030 - August 22, 2025Nielsen Norman Group (NN/g) UX Certification Program
January 11, 2030 - August 22, 2025Google UX Design Professional Certificate
January 11, 2030 - August 22, 2025LinkedIn Learning UX/UI Design Certificate of Completion
January 11, 2030 - August 22, 2025Pluralsight UX Certification
January 11, 2030 - August 22, 2025NN/g UX Certification
January 11, 2030 - March 5, 2026Google UX Certification
January 11, 2030 - March 5, 2026LinkedIn Learning UX Certifications
January 11, 2030 - March 5, 2026Pluralsight UX Certifications
January 11, 2030 - March 5, 2026Industry Experience
Financial Services, Travel & Hospitality, Consumer Goods, Professional Services, Software & Internet, Retail
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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