Senior UI Designer

Craft Voice For Epsilon's Core UI Design System

You are the craft voice at the intersection of design and implementation — pushing visual fidelity and polish on Epsilon's CORE UI design system until it's the kind of enterprise SaaS that makes people stop and say "wow." You partner across Product Design and Engineering, building future-facing prototypes and shipping production components with an unrelenting eye for detail, motion, and finish. You bring deep design systems fluency, a refined sense for micro-interactions, and you use AI tools to move fast without ever cutting polish. This is a rare shot to define what best-in-class SaaS UI looks like, at a company where design has a real seat at the table.

Responsibilities

• Push the visual quality bar on CORE UI — tokens, components, motion, and interaction — across Figma and production code.
• Build coded, future-facing prototypes in Cursor that show what "wow" looks like before a line of production code is written.
• Partner with engineers to close the gap between design intent and shipped reality — reviewing implementations, writing production-quality CSS when needed, and refusing to let polish slip.
• Sweat the details on complex flows — every edge case, empty state, and loading moment considered and refined.
• Help shape the craft standards the whole system is held to.

Qualifications

• 6+ years in UI design, development, or a hybrid role. Portfolio must show shipped, polished SaaS or related digital product work.
• Hands-on experience evolving a design system in both Figma and code (Angular/React, Storybook, tokens, etc.).
• A strong, opinionated eye for motion and micro-interaction — polished, purposeful, never decorative.
• Fluency in high-fidelity prototyping that convincingly simulates a finished, delightful product.
• Working knowledge of HTML, CSS (animation, transitions, custom properties), and JS/TS — enough to implement and critically review production UI.
• An online portfolio with live, interactive work that shows real visual craft, not just static screens.

Why You Might Stand Out From Other Talent

• You've shipped work at a level of visual polish most enterprise teams don't even attempt.
• Your portfolio shows the "wow" — motion, transitions, details where craft was clearly non-negotiable.
• You treat AI tools as a creative partner for exploring and validating design directions faster.
• You move fluidly between Figma and code without losing fidelity in either direction.
• You believe enterprise software deserves consumer-grade polish, and you've proven it.

When You Join Us, We'll Create Something EPIC Together

Epsilon is a global data, technology and services company that powers the marketing and advertising ecosystem. For decades, we've provided marketers from the world's leading brands the data, technology and services they need to engage consumers with 1 View, 1 Vision, and 1 Voice. 1 View of their universe of potential buyers. 1 Vision for engaging each individual. And 1 Voice to harmonize engagement across paid, owned and earned channels.

Epsilon's comprehensive portfolio of capabilities across our suite of digital media, messaging and loyalty solutions bridge the divide between marketing and advertising technology. We process 400+ billion consumer actions each day using advanced AI and hold many patents of proprietary technology, including real-time modeling languages and consumer privacy advancements. Thanks to the work of every employee, Epsilon has been consistently recognized as industry-leading by Forrester, Adweek and the MRC. Epsilon is a global company with more than 9,000 employees around the world.

Our pillars aren't just words. They're how we show up every day.

• People centricity: We focus on employee well-being in an environment where colleagues truly care about each other.
• Collaboration: We work together, support one another, and collectively achieve goals.
• Growth: There are endless opportunities for growth through learning, development and career advancement.
• Innovation: We drive progress through cutting-edge solutions and forward-thinking approaches.
• Flexibility: We've created a balance between work and personal life, and we encourage adaptability to solve problems creatively.

Our values guide us to create value for our clients, our people and consumers.

• Act with integrity
• Work together to win together
• Innovate with purpose
• Respect all voices
• Empower with accountability

These pillars and values are our foundation—shaping our culture, guiding our decisions, and uniting us in common purpose.

Because You Matter

As an Epsilon employee, you deserve perks and benefits that put you, your family and your finances first. Our benefits encompass a wide range of offerings, including but not limited to the following:

• Time to Recharge: Flexible time off (FTO), 15 paid holidays
• Time to Recover: Paid sick time
• Family Well-Being: Parental/new child leave, childcare & elder care assistance, adoption assistance
• Extra Perks: Comprehensive health coverage, 401(k), tuition assistance, commuter benefits, professional development, employee recognition, charitable donation matching, health coaching and counseling

Epsilon benefits are subject to eligibility requirements and other terms.

Epsilon is an Equal Opportunity Employer. Epsilon's policy is not to discriminate against any applicant or employee based on actual or perceived race, age, sex or gender (including pregnancy), marital status, national origin, ancestry, citizenship status, mental or physical disability, religion, creed, color, sexual orientation, gender identity or expression (including transgender status), veteran status, genetic information, or any other characteristic protected by applicable federal, state or local law. Epsilon also prohibits harassment of applicants and employees based on any of these protected categories. Epsilon will provide accommodations to applicants needing accommodations to complete the application process. Please reach out to View email address on click.appcast.io to request an accommodation.

For San Francisco Bay and Los Angeles Areas: Epsilon will consider for employment qualified applicants with criminal histories in a manner consistent with the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance and San Francisco Police Code Sections 4901-4919, commonly referred to as the San Francisco Fair Chance Ordinance. Applicants with criminal histories are welcome to apply.

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Compensation Range: USD $67,800.00 - USD $126,000.00/Annually. This is the pay range the Company believes it will pay for this position at the time of this posting. Consistent with applicable law, compensation will be determined based on the skills, qualifications, and experience of the applicant along with the requirements of the position, and the Company reserves the right to modify this pay range at any time. Temporary roles may be eligible to participate in our freelancer/temporary employee medical plan through a third-party benefits administration system once certain criteria have been met. For regular roles, the Company will offer medical coverage, dental, vision, disability, 401k, and paid time off. The Company anticipates the application deadline for this job posting will be 9/9/2026.