Senior UX Engineer

StackOne is looking for a Senior UX Engineer to join their team and help build the future of agentic integrations. The ideal candidate will have 4+ years of professional front-end engineering experience, with a focus on details, and expertise in React, TypeScript, and CSS.

Requirements

• 4+ yrs professional front-end engineering with a portfolio that focus on the details
• React & TypeScript at production scale; comfortable with hooks, suspense, and server components
• Deep CSS fluency (Tailwind or equivalent) and experience of modern browser APIs
• Proven track record building or migrating component libraries/design systems
• Strong performance tuning instincts: Lighthouse, Core Web Vitals, bundle analysis, code-splitting
• Familiarity with monorepo tooling (NX or Turborepo) and micro-frontend patterns
• Ability to dive into back-end code (Node, React-router, sveltekit) to remove perf bottlenecks, instrument metrics, or adjust API shape

Benefits

• Equity participation through our employee stock option plan
• 25 days PTO + 1 additional day for each year of tenure (plus paid US holidays)
• Flexible hybrid work setup—work from home or join us in person when it suits you
• $1,200 home office setup allowance + $600 annual top-up
• Health, dental, and vision insurance—100% covered for employees
• Access to wellness, fitness, and lifestyle discounts
• Annual company retreat in sunny destinations (past trips: Spain & Portugal)