Senior Front-End Engineer (UI/UX)

We’re StackBlitz!

We’re the team behind WebContainers, the groundbreaking technology that made it possible to run Node.js right in your browser. No installs, no setup, just instant dev environments. That innovation kickstarted our journey in 2019 and powers the blazing-fast online IDE used by over a million developers every month.

But we didn’t stop there.

We took everything we learned from building WebContainers and used it to create Bolt.new. The fastest way to go from idea to production without writing traditional code. Think of it as the Canva or Figma for full-stack applications: a next-gen, AI-powered builder that lets you create, edit, and deploy web and mobile apps instantly, right in your browser.

WebContainers make it possible. Bolt.new brings it to life. Together, they reimagine what it means to build software lowering the barrier to entry, speeding up workflows, and unlocking creativity for the next generation of builders.

We’re a globally distributed, fully remote team of passionate engineers, designers, and creatives building the future of software development. If you love shipping fast, solving real problems, and pushing the boundaries of what’s possible we’d love to meet you.

A Senior Frontend Engineer at Bolt bridges the gap between design and front-end engineering while driving architectural excellence and technical innovation across our platform.

This role is perfect for someone who combines deep front-end architectural expertise with a passion for crafting intuitive user experiences. You thrive on building scalable systems, sweating the small details, and implementing UI improvements that make a big impact.

• Own front-end design refinements, improving UI/UX across our site and products.
• Evolve our frontend architecture, ensuring maintainability, scalability, and performance across our platform.
• Drive technical excellence by identifying and reducing technical debt, establishing best practices, and implementing architectural improvements.
• Implement design updates and polish interactions, ensuring a seamless user experience.
• Collaborate with Product, Design, Engineering, and Marketing to translate ideas into visually compelling, high-performance interfaces.
• Architect and expand our design system and component library, ensuring consistency across all user touchpoints.
• Lead the development of reusable React components and establish patterns that enhance developer productivity and code maintainability.
• Implement and optimize complex UI interactions, while maintaining a focus on performance, accessibility, usability, and performance, ensuring our platform remains intuitive for both technical and non-technical users.
• Prototype and iterate quickly, refining designs based on feedback and data.
• Champion modern frontend development practices, mentoring team members and contributing to technical decision-making.

• 5+ years of experience in front-end development, design engineering, or a hybrid role.
• Proficiency in React, TypeScript, and modern frontend architecture patterns.
• Strong foundation in HTML, CSS (Tailwind), and frontend performance optimizations.
• Experience leading architectural initiatives and driving technical excellence in complex web applications.
• Familiarity with design tools like Figma, Sketch, or Adobe XD, and a passion for visual polish.
• Experience building and maintaining design systems and component libraries.
• Strong UX sensibilities, with an ability to balance aesthetics and functionality.
• An eye for detail—you care about spacing, typography, animations, and micro-interactions.
• Experience working in a highly collaborative, fast-paced environment.
• Strong verbal and written English communication skills are required, as this role involves frequent collaboration with team members, stakeholders, and customers where English is the primary working language.

• Experience with Web Workers, Web Components, Remix or developer tooling.

• You do not need a college degree to apply
• You do not need to be located in the U.S. — we’re remote-friendly
• You do not need to meet every qualification listed above