UX Designer

Arizeai; United States; On-site; USD 165,000 - 200,000; Full time

Benefits offered by this job

Competitive equity package

Medical, dental, vision benefits

401(k) plan

Unlimited paid time off

Generous parental leave

Job summary

Arize AI in the United States is seeking a UX Design Engineer who obsessively refines the end-to-end user experience. You’ll own the product look and feel, and shape interactions for a technical audience.

You’ll prototype in Figma or code, iterate on UX flows, and implement designs with senior engineers. The role includes usability testing, building reusable patterns, and collaborating with researchers and PMs to turn feedback into delightful, scalable interfaces.

Qualifications

• Engineering background with frontend dev experience or related degree.
• Experience on complex tools (dev/data tools) where UX matters.
• Built design systems and animation libraries.
• Able to wireframe in Figma and share flows with engineers.
• Used feedback collection tools to inform designs.

Responsibilities

• Own the product look and experience end to end.
• Prototype interaction options rapidly (in Figma or code) to test approaches.
• Implement designs with senior engineers and run usability tests.
• Build reusable interaction patterns for the team.
• Refactor complex forms into user-friendly multi-step flows.

Skills

Engineering background

Frontend development

UX refinement

Design systems

Animation libraries

Education

Engineering degree

Tools

Figma

Fullstory

Job description

About Arize

AI is rapidly transforming the world. As generative AI reshapes industries, teams need powerful ways to monitor, troubleshoot, and optimize their AI systems. That’s where we come in. Arize AI is the leading AI & Agent Engineering observability and evaluation platform, empowering AI engineers to ship high-performing, reliable agents and applications. From first prototype to production scale, Arize AX unifies build, test, and run in a single workspace—so teams can ship faster with confidence.

We’re a Series C company backed by top-tier investors,withover $135M in fundingand a rapidly growing customer base of150+ leading enterprises and Fortune 500 companies.Customers like Booking.com, Uber, Siemens, and PepsiCo leverage Arize to deliver AI that works.

The Opportunity

We're looking for a UX Design Engineer to own and perfect the end-to-end user experience. The ideal person for this role obsesses over the details and can deliver improvements to the product.

Most engineering teams treat UX refinement as an afterthought squeezed between feature work. We have a dedicated role for it because we believe the difference between "works" and "delightful" is what separates good products from great ones. You'll have the space to really care about craft.We're a technical team building for technical users. Your job is to make the experience of using our product enjoyable!

What You'll Do:

Own the "look and experience" of the product end to end:

User Research

• Identify pain points
• Watch real users in Fullstory, identify friction points, and fix them

Design Solutions

• Prototype interaction alternatives rapidly (in Figma or code) to test different approaches
• Create, refine, and iterate on UX flows and interaction patterns

Implement Solutions

• Work closely with our Senior engineers who own feature architecture - they build the foundation, you perfect the interface
• Run lightweight usability tests to validate improvements
• Build reusable interaction patterns that the team can leverage

A typical week might include:

• Watching 10 user sessions, identifying common friction points
• Meeting with users to get deeper on new product features feedback
• Prototyping different flows in Figma
• Implementing design improvements with smooth transitions and helpful inline guidance
• Pairing with Staff engineers to refactor a complex form into a multi-step wizard
• Running a quick usability test with 5 users on the new onboarding flow

You're a great fit if:

• You have an engineering background - you’ve either been an frontend developer, have an engineering degree, or you have used Claude Code/Cursor to make impactful design changes.
• You've worked on complex tools (dev tools, data tools, B2B SaaS) where UX really matters
• You've made products noticeably better through refinement (show us!)
• You’ve built or contributed to design systems and animation libraries.
• You've used feedback collection tools and incorporated user feedback into designs
• You can work in Figma to wireframe and create flows to share with fellow engineers
• You think about edge cases, loading states, and empty states automatically

The estimated annual salary for this role is between $165,000 - $200,000, plus a competitive equity package. Actual compensation is determined based upon a variety of job related factors that may include: transferable work experience, skill sets, and qualifications. Total compensation also includes a comprehensive benefit package, including: medical, dental, vision, 401(k) plan, unlimited paid time off, generous parental leave plan, and others for mental and wellness support.

More About Arize

Arize’s mission is to make the world’s AI work—and work for people.
Our founders came together through a shared frustration: while investments in AI are growing rapidly across every industry, organizations face a critical challenge—understanding whether AI is performing and how to improve it at scale.

Learn more about what we're doing here:

https://techcrunch.com/2025/02/20/arize-ai-hopes-it-has-first-mover-advantage-in-ai-observability/

https://arize.com/blog/arize-ai-raises-70m-series-c-to-build-the-gold-standard-for-ai-evaluation-observability/

Diversity & Inclusion @ Arize

Our company's mission is to make AI work and make AI work for the people, we hope to make an impact in bias industry-wide and that's a big motivator for people who work here. We actively hope that individuals contribute to a good culture

• Regularly have chats with industry experts, researchers, and ethicists across the ecosystem to advance the use of responsible AI
• Culturally conscious events such as LGBTQ trivia during pride month
• We have an active Lady Arizers subgroup