Michael Cullinan

Principal UX Designer

Summary

Senior Design Leadership Bridging AI Practice and Human-Centered Craft

Principal-level UX leader with 10+ years of experience shaping complex digital products across enterprise, learning, and brand-sensitive environments. Known for aligning product, engineering, and business stakeholders around clear interaction models that reduce complexity, improve adoption, and raise the quality of high-stakes workflows. Brings systems thinking, visual craft, accessibility rigor, and an AI-enabled design practice to accelerate decision-making and turn ambiguity into scalable product direction.

Selected Impact

Led enterprise platform design across 25+ global brands

Led experience strategy for Estée Lauder's Concept-to-Market platform, shaping end-to-end workflows used at enterprise scale.

Boosted cross-team onboarding efficiency by 30–40%

Established design standards, component systems, and documentation practices that improved consistency and reduced ramp-up time.

Accelerated concept-to-validated-prototype cycles with AI

Introduced AI-assisted research synthesis and rapid prototyping workflows, cutting concept-to-validated-prototype cycles by ~50% and sharpening partner clarity.

Streamlined complex enterprise workflows

Reduced task friction, design-to-development handoff errors, and common task completion times through structured UX strategy and validation.

Professional Experience

Estée Lauder Companies · Melville, NY
Jan 2019 – Present
Senior UX/UI Designer · Design Lead, Concept-to-Market Platform
  • Own and drive end-to-end UX strategy for the Concept-to-Market platform, supporting complex cross-functional workflows across 25+ global brands.
  • Serve as the primary design voice in product and leadership discussions, aligning business goals with user-centered strategy and influencing roadmap direction.
  • Define scalable interaction models for high-stakes workflows, helping product and engineering converge on clearer solutions and reducing downstream rework by ~20%.
  • Partner with product, engineering, and business leadership across 4–6 product teams within the C2M platform, aligning roadmap priorities with user-centered strategy and influencing scope decisions at the portfolio level.
  • Shaped design principles and review standards adopted across the C2M platform, raising quality and consistency at scale and giving cross-functional partners a shared language for design decisions.
  • Established and evolved design standards, component systems, and documentation practices, improving consistency and reducing onboarding time by ~30–40%.
  • Drove design and content strategy for internal learning and enablement experiences used across luxury beauty brands, balancing clarity, trust, and premium brand expectations.
  • Mentor 3+ designers and cross-functional partners through critique, coaching, and design reviews as a Subject Matter Expert within the IT Learning Academy.
  • Coached a junior UX designer through low-fidelity flow design for a cross-device Skin Analyzer application (desktop, tablet, and mobile) for Lab Series, an Estée Lauder brand — guiding interaction patterns, critique, and design decision-making to strengthen both the designer's craft and the delivered experience.
  • Developed an AI-assisted design workflow using ChatGPT, Claude, Adobe Firefly, Vite, and Vercel, reducing concept-to-validated-prototype cycles by ~50%.
  • Drove rapid prototyping efforts to validate complex concepts before engineering investment, tightening cross-functional alignment and cutting avoidable iteration.
Lead UX Designer (Consultant)
Jan 2019 – Dec 2022
  • Defined and executed UX strategy during early-stage C2M platform development, helping shape foundational product direction and experience architecture.
  • Designed and facilitated stakeholder workshops to align business goals with user workflows and translate findings into actionable product frameworks.
  • Built design-system foundations in Figma, including a modular role-based component architecture derived from Ant Design, that cut inconsistency across teams.
  • Led end-to-end design for 2+ innovation initiatives, translating complex domain workflows into structured, testable prototypes that informed product direction.
Dopamine · New York, NY
Dec 2018 – May 2019
Senior UX/UI Designer
  • Collaborated with client Frontier Signal to create a real-time job search application, improving application success rates by 25% through more effective user flows and accessible design.
  • Developed wireframes, prototypes, and polished UI aligned to WCAG 2 standards, contributing to a 10% increase in user engagement.
  • Clarified complex processes through user flows, journey maps, and data visualizations, reducing user error rates by 15%.
RingLead · Melville, NY
Mar 2017 – Dec 2018
Senior UX/UI Designer
  • Conducted interviews and surveys, converting findings into personas, user flows, and high-fidelity prototypes that decreased onboarding time by 20%.
  • Tested design assumptions against real user needs and translated findings into roadmap recommendations that improved customer retention.
  • Led user testing initiatives that cut common task completion times by 30%, and collaborated closely with developers to reduce handoff errors by 25%.
Earlier Experience
Digital / UI Designer · NAPCO Security Technologies (Amityville, NY)

Digital product design, brand systems, and front-end work across four NAPCO business units — web applications, mobile interfaces, and integrated brand programs. Additional portfolio detail available on request.