Senior Front End Engineer

The Monad Foundation is a team of dedicated ecosystem and community builders on a mission to massively grow the impact of decentralized tech. We believe that the Monad blockchain – a performant and parallel EVM Layer 1 – will help decentralized apps eat the world. The Role We’re looking for a Senior Frontend Engineer who lives and breathes interface quality from end-to-end: design and animation, purposeful implementation, and measurable performance. You’ll partner closely with design to turn high-fidelity handoffs into production-grade Web3 interfaces that feel universally fast, intuitive, and delightful. Wallet integrations and on‑chain data rendering are a subset of your work—not the center of it. If you’re a self-starter who thrives in ownership, sweats the details, and champions consistency at scale, this role is for you. What You Will Do Build, evolve, and maintain a robust design system (tokens, components, patterns) used across multiple products and teams. Translate Figma handoffs into clean, resilient UI with strong visual fidelity, motion principles, and interaction polish. Design and implement animations and micro-interactions that enhance clarity, feedback, and perceived performance—never for flair alone. Ensure interfaces are accessible by default (semantics, keyboard support, focus management, ARIA, color contrast) and pass audits. Own responsive design across breakpoints and container queries; deliver consistent UI in varied layouts and contexts. Optimize frontend performance (bundle size, code-splitting, hydration strategies, caching, virtualization) and establish performance budgets and monitoring. Collaborate with design on component architecture, interaction models, and motion guidelines; push for system-level consistency. Write high-quality, well-tested code; contribute lint rules, CI checks, and docs that improve team velocity and quality. Proactively identify UI debt, propose solutions, and lead refactors without heavy hand-holding. Partner with product and engineering to plan, estimate, and deliver UI features end-to-end. Implement basic wallet integrations (e.g., WalletConnect, injected providers) with secure session handling, network switching, and clear UX for connect/sign states. Render on‑chain data from RPCs/indexers for balances, transactions, and protocol state with skeletons, error recovery, and pagination. Maintain reliability benchmarks (connection success rate, transaction status feedback); improve over time. Who You Are 5+ years building production web apps with React/Next.js (or Svelte/SvelteKit) and TypeScript. Proven experience shipping/maintaining component libraries/design systems (tokens, theming, cross‑app adoption). Strong motion craft (Framer Motion/GSAP or similar) with performance‑friendly techniques and restraint. Deep accessibility practice; hands‑on fixes for axe/Lighthouse/Pa11y findings; ARIA live regions for status changes. Modern CSS fluency (Grid/Flex, custom properties, container queries, prefers‑reduced‑motion, logical properties); Tailwind/Shadcn familiarity. Performance expertise: profiling, reducing CLS/LCP/TTI, SSR/SSG/ISR tradeoffs, smart fetch strategies (React Query/SWR, debouncing, request coalescing). Competence in wallet integration and on‑chain data rendering; can own small‑to‑medium Web3 UI surfaces independently. Communication that aligns design and engineering; clear documentation and rationale. Self‑directed, ownership‑oriented; structures work and drives outcomes without constant guidance. Nice to Have Experience with Storybook, Chromatic/visual regression, and UI testing (Playwright, Testing Library). Experience building token pipelines (Style Dictionary), multi-brand theming, and cross‑platform design system alignment. Familiarity with performance tooling (Lighthouse, WebPageTest, Perfetto) and monitoring (Sentry, Datadog, New Relic). Experience with animation performance (compositor‑friendly transforms, will‑change, timeline sync, reduced‑motion fallbacks). Familiarity with internationalization (i18n, RTL support) and content‑heavy or high‑traffic sites. Experience with WebGL/Canvas/SVG where motion requires custom rendering. How You Work Quality bar: You care about the details—layout precision, motion timing, focus states, empty/loading/error states, and edge cases. Systems thinking: You prefer reusable patterns over one‑off components and advocate for consistency and scalability. Pragmatic craft: You balance elegance with delivery, choosing approaches that optimize for both user experience and maintainability. Autonomy: You plan, communicate, and execute without constant guidance; you elevate only when necessary. Collaboration: You work tightly with design and engineering, welcome feedback, and provide constructive critiques. Why Work with Us Challenging problems. You’ll work on extremely challenging problems with massive impact. Huge opportunity. The Ethereum Virtual Machine (EVM) standard is ubiquitous, but existing EVM‑compatible chains are slow and bandwidth‑constrained. Monad’s core innovations offer developers the best of both worlds (portability and performance) and are a game‑changer for mass user adoption in crypto. The right team. You’ll be part of an exceptional and highly‑motivated team. Culture. We’re a lean team working together to achieve very ambitious goals. We are united in our culture of collaboration, low ego, and high‑quality output. As an early member of our team, you’ll help continue to shape our culture. Salary And Benefits Benefits for full‑time employees may include medical, dental, and vision insurance (100% coverage for employees); generous paid time off; paid parental leave; and 10 company‑observed holidays. Seniority Level Mid‑Senior level Employment Type Full‑time Industries Blockchain Services #J-18808-Ljbffr