UI Engineer
At a glance
Mid-level Frontend Engineering role at Gamma. San Francisco · full-time · $180,000–$310,000 base.
techroles summary, based on the employer's posting.
What you'll do
- Build design-system pieces, from basic controls to editor elements, with accessibility included
- Turn detailed design mockups into responsive layouts, animations and interactions across the product
- Tune rendering, bundle size and interaction speed to keep animations running at 60fps
- Handle browser differences and rendering edge cases while refining loading, error and hover states
- Work with designers to ship polished, reusable components supported by clear documentation
What you bring
- At least three years of frontend engineering and strong React skills, with advanced CSS knowledge
- A sharp eye for visual details, including alignment, spacing and animation quality
- Experience creating complex interactive products such as editors, design tools or animation-heavy apps
- Skills in React and CSS performance tuning, plus building accessible component libraries that can be reused
Who this fits
This role suits a frontend engineer focused on UI craft, design systems and interactive product experiences. You’ll work in person in San Francisco four to five days a week, with some work-from-home flexibility.
From the employer
About the role
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.
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