Available to hire
I’m David Friedel, an innovative digital experience UX strategy lead and principal interaction designer who helps teams turn complex product goals into clear, accessible user experiences. I lead UX strategy and design systems work, build high-fidelity prototypes, and partner closely with product managers and architects to create seamless journeys—from early discovery through usability testing and UAT.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Work Experience
Principal UX Designer at Cummins
February 1, 2026 - July 31, 2026Applied AI-assisted analysis to Shop.Cummins.com comments to inform product decisions and improve the customer experience. Partnered with product managers and architects to create seamless user experiences, and provided weekly UX updates and recommendations to executive leadership. Designed accessible web and mobile interfaces in Figma using AI-assisted workflows to accelerate iteration and improve usability across shopping experiences.
Principal UX Designer at Infosys (Cummins, Lead UX for Shop.Cummins.com)
February 1, 2026 - July 1, 2026Lead UX on multimillion-dollar shopping sites for Cummins. Used structured prompting with Claude to analyze user comments and feedback at scale, surfacing recurring pain points that influenced management’s roadmap priorities for Shop.Cummins.com. Used Figma MAKE to generate and iterate high-fidelity web and mobile screen concepts, accelerating stakeholder review cycles. Collaborated with Product Management and Architects to construct easy-to-use web and mobile experiences. Provided weekly updates to senior executives and drove UX direction on the shopping platform.
Lead UX Designer at OnCourse Home Solutions
September 1, 2025 - January 31, 2026Accelerated concept-to-prototype timelines by creating guided-flow Figma MAKE prototypes and producing development-ready Figma prototypes for a case operating system. Developed detailed personas from organization-wide interviews, mapped call center journeys and AI-enabled workflows, and ran and managed usability testing to validate what worked and what didn’t. Translated Figma MAKE into standard Figma wireframes suitable for developer-grade layouts.
Lead UX Designer at Toptal (OnCourse Home Solutions)
September 1, 2025 - January 1, 2026Used Figma MAKE to rapidly generate two major prototypes: a Guided Sales Flow for call center agents and a Claims process flow, then refined them into high-fidelity, animated Figma wireframes. Journey mapped call center processes to define workflows for different groups of people, supported by in-person user interviews. Crafted in-depth personas, built low- and high-fidelity wireframes for multiple construction stages, and coordinated with PMs, business analysts, and software engineers to align UX as a bridge of understanding for revitalizing internal operations.
Lead UX Designer at U.S. Department of Energy
May 1, 2024 - September 30, 2025Improved usability of DOE’s EV battery portal by 30% through findings from 20+ user interviews. Reduced development cycles by 40% by designing 125+ wireframes and prototypes. Presented designs to executive stakeholders across IRS, Treasury, MITRE, and DOE for feedback, and executed UAT using test scripts to identify bugs before digital releases. Built Salesforce pages, dashboards, and reports to strengthen user workflows.
Lead UX Designer at Accenture (US Department of Energy)
May 1, 2024 - September 1, 2025Conducted 20+ user interviews that led to a 30% improvement in usability for DOE’s EV battery registration portal. Participated in high-level user meetings with IRS, Treasury, MITRE, and DOE executives to present designs and gather feedback. Designed 125+ wireframes and prototypes, reducing development cycle time by 40%. Created Salesforce pages, dashboards, and reports to accelerate UX design efforts, working in both Figma and Salesforce Builder. Supported UAT by running test scripts and reviewing results for bug fixes.
UX Manager (Contract) at Ecolab
August 1, 2022 - December 31, 2023Directed a team of four designers to sustain project continuity during a leadership transition. Reduced development risk through low- and high-fidelity interactive prototypes, and informed design decisions by presenting user research findings to product leaders. Ensured brand consistency by aligning deliverables with the Ecolab Design System and strengthened release quality by authoring UAT test plans for critical applications.
UX Manager at Ecolab
August 1, 2022 - December 1, 2023Built low-fidelity wireframes and high-fidelity interactive prototypes to plan system behavior before development resources engaged. Participated in user interviews and collaborated with other UX designers to present findings to digital product management. Ensured designs conformed to the Ecolab design system. Designed UX for Salesforce LWC (Lightning Web Components) for cleaning products. Helped write UAT test plans after design completion. Managed a team of four designers, handled day-to-day standups, and conducted one-on-one meetings after a manager departure.
UX Designer, Web Developer at PassTime GPS
November 1, 2020 - July 1, 2022Created visual designs and workflows for multiple applications, building low- and high-fidelity mockups. Designed a new, visually compelling home page for the main application by aligning internal stakeholders on product representation. Enhanced UX based on dealership feedback, improving customer satisfaction scores by 25%. Created journey maps to identify experience improvements and collaborated with consultants to implement changes. Designed and maintained application code using the Angular framework.
Lead UX Designer at Atex Financial
May 1, 2019 - November 1, 2020Designed and developed UX/UI for multiple desktop and tablet web products. For the first product, created charting and graph-based interfaces for hospitals to gauge procedure pricing; started with in-person whiteboarding to produce low-fidelity mockups and journey maps based on interviews with principal stakeholders. Worked through system-level UX and backend requirements over a multi-week discovery effort. Built low- and high-fidelity wireframes and mockups for overall system visualization. For a second product, designed wizard-driven UI to help customers look up prices via guided questions, and performed web development for immediate UI trials alongside backend engineers.
Lead UX Designer at Boeing
July 1, 2015 - May 31, 2019Designed Operator experiences across desktop, tablet, and mobile for a potential $1B aviation market. Modernized pilot workflows by replacing paper records with a responsive Electronic Flight Bag. Mapped flight processes, staffing, and time-critical logistics through research with Boeing SMEs, and demonstrated functionality using interactive wireframes and prototypes. Partnered with product managers and developers in Agile delivery and built Axure prototypes to simulate workflows and clarify the user experience.
Lead UX Designer at Apex Consulting (Boeing)
July 1, 2015 - May 1, 2019Worked in Sketch and InVision to build comprehensive UX designs, including functional prototypes in Axure with interactive workflows for end users. Provided UX research and visual design for an Electronic Flight Bag (EFB) web application that replaced paper-based flight plans and weather reporting, supporting responsive desktop and mobile use. Designed UX for the startup product “Operator” across desktop/tablet/phone formats and supported user research for “Symphony,” a large-scale Boeing project tracking flight-related processes. Collaborated with product managers and developers in Agile phases and coordinated across projects during Program Increment (PI) planning sessions.
Education
BBA at Hofstra University
January 1, 1991 - January 1, 1991Bachelor of Business Administration at Hofstra University
January 11, 2030 - August 28, 2026Qualifications
Google UX Design Certification
January 11, 2030 - July 28, 2026Salesforce UX Design Certification
January 11, 2030 - July 28, 2026Google UX Design Certificate
January 11, 2030 - August 28, 2026Salesforce UX Designer Certification
January 11, 2030 - August 28, 2026Industry Experience
Government, Software & Internet, Energy & Utilities, Retail, Healthcare, Professional Services, Financial Services, Manufacturing, Transportation & Logistics
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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