GammaUI Engineer
Gamma is hiring a UI Engineer in San Francisco, United States. Level rates it ; you can apply on Gamma.
Level's read on this job
- On Level's scale, this role is Little AI ●○○○: aI is not part of the work.
- The posting mentions React, Css and frontend development among its tools and skills.
- Level classes it as a senior role.
- Gamma has 20 other open roles on Level.
- Posted within the past two weeks.
AI in this role
Build pixel-perfect layouts, smooth animations, and design system components as a Frontend UI Engineer at Gamma in San Francisco.
You'll build Gamma's visual experience: pixel-perfect layouts, smooth animations, and responsive interactions that make the product feel magical. That means owning design system components from buttons and inputs to complex editor UI primitives, implementing polished micro-interactions and transitions, and solving tough browser challenges across compatibility and rendering. You'll sweat the details (spacing, typography, hover states, loading states, error states, edge cases) while keeping frontend performance sharp.
As a Frontend Engineer focused on UI and design systems, you'll partner closely with designers to translate high-fidelity mocks into production-ready, accessible components and build reusable, well-documented component libraries that scale across the product. This role requires mastery of CSS, a sharp eye for craft, and an instinct for when to polish versus when to iterate.
Our team has a strong in-office culture and works in person 4–5 days per week in San Francisco. We love working together to stay creative and connected, with flexibility to work from home when focus matters most.
What you'll do
Own design system components from foundational elements to complex editor UI primitives, with accessibility built in
Build pixel-perfect layouts, smooth animations, and responsive interactions across the product
Implement polished micro-interactions and transitions that make Gamma feel crafted and intentional
Optimize rendering, bundle size, and interaction responsiveness to maintain 60fps animations
Solve complex browser challenges including cross-browser compatibility, edge cases, and rendering quirks
Partner with designers to translate high-fidelity mocks into production-ready components
What you'll bring
3–5+ years of frontend engineering with deep React expertise and mastery of CSS including flexbox, grid, animations, transforms, and browser quirks
Sharp eye for detail and craft, with the ability to spot 1px misalignments, janky animations, and inconsistent spacing
Experience building complex, interactive UIs such as editors, design tools, or animation-heavy applications
Performance optimization skills across React rendering, CSS performance, and animation frame rates, with experience building reusable, accessible, well-documented component libraries
Thoughtful approach to user experience including loading states, error handling, and responsive behavior
Experience with animation libraries or visual editing tools (Nice to have)
Compensation range:
The base salary for this full-time position, which spans multiple internal levels depending on qualifications, ranges between $180K - $310K plus benefits & equity.
Final offer amounts are determined by multiple factors, including but not limited to experience and expertise in the requirements listed above.
If you're interested in this role but you don't meet every requirement, we encourage you to apply anyway! We're always excited about meeting great people.
How we rate this
UI Engineer at Gamma rates 0 out of 100 for how much of the daily work is AI. That makes it Little AI (AI Level 1 of 4). The level is about AI in the job, not seniority.
Little AI. AI is not part of the work.
- ●●●● Builds AI80 to 100
- ●●●○ Works on AI60 to 79
- ●●○○ Uses AI40 to 59
- ●○○○ Little AI0 to 39
Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.
Prepare for this job
Built from this posting and from similar jobs on Level.
Skills and AI tools this role asks for
Questions you could be asked
- Tell me about a project where frontend development was part of your work. What did you do?
- Tell me about a project where design systems was part of your work. What did you do?
- Tell me about a project where ui engineering was part of your work. What did you do?
- What's a project where you used React hands-on?
- Walk me through how you've used Css in your day-to-day work.
Adapt your resume
- List these exact terms on your resume: Frontend Development, Design Systems, UI Engineering, React, and Css. An applicant tracking system matches the wording, not the idea.
- Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.
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