Senior Front-End Engineer (React) for Onchain Finance

Symbiotic; New York (NY); On-site; USD 140,000 - 190,000; Full time

Job summary

Symbiotic is seeking a frontend engineer to build accessible, performant UIs for onchain collateral infrastructure. You will translate Figma designs into reusable components, implement blockchain and wallet interactions, and collaborate with designers, product, and partners to ship MVP features and maintain engineering standards.

Requirements include React/TypeScript expertise, Next.js, Vite, and advanced state management with TanStack Query and Zustand.

Qualifications

• Expert in modern React and TypeScript, with strong instincts for component architecture and type-safe design.
• Production experience with Next.js, Vite, and pnpm-based monorepos.
• Deep understanding of state management — server state (TanStack Query), lightweight client state (Zustand or similar), and when to use which.
• Strong CSS and responsive design fundamentals; experience with component libraries such as Chakra UI.
• Able to turn Figma designs into accessible, reusable components, ideally documented in Storybook.
• Solid testing practice across unit, integration, and E2E (Vitest, Playwright), including async and wallet-interaction flows.
• Able to optimize performance (code splitting, memoization, bundle analysis, Core Web Vitals) and debug production issues with tools like Sentry.
• Security-conscious: CSP, secure wallet interactions, input validation, and safe handling of secrets.
• Confident with Git workflows, Docker, and GitHub CI/CD; basic familiarity with Kubernetes and CDNs.
• Nice to have: experience integrating frontends with blockchain networks — wagmi/viem, wallet connection flows, transaction lifecycles, and Web3 UX.

Responsibilities

• Participate in all phases of frontend development: requirements analysis, architecture and design, implementation, documentation, testing, and delivery.
• Build responsive and accessible user interfaces based on Figma designs.
• Prototype interfaces for testing mvps.
• Develop reusable components and maintain them in Storybook.
• Integrate new features into the existing codebase.
• Implement blockchain and wallet interactions.
• Design efficient approaches to client‑side state management, server‑state synchronization, caching, and error handling.
• Write unit, integration, and end‑to‑end tests.
• Monitor production issues and application performance using Sentry.
• Contribute to project estimation, planning, and technical decision‑making.
• Review code written by other team members and help maintain engineering standards.
• Communicate effectively with engineers, designers, product stakeholders, and company partners.

Skills

React

TypeScript

Frontend architecture

Component-based design

Testing (Vitest/Playwright)

CSS/Responsive design

Git workflows

Docker

Kubernetes basics

Web3 UX

Tools

Next.js

Vite

pnpm

Zustand

TanStack Query

Chakra UI

Storybook

Sentry

Playwright

Vitest

Docker

GitHub CI/CD

Kubernetes basics

wagmi/viem

Job description

Symbiotic is seeking a frontend engineer to build accessible, performant UIs for onchain collateral infrastructure. You will translate Figma designs into reusable components, implement blockchain and wallet interactions, and collaborate with designers, product, and partners to ship MVP features and maintain engineering standards.

Requirements include React/TypeScript expertise, Next.js, Vite, and advanced state management with TanStack Query and Zustand.