Position:
Senior Front-End Engineer (React)
Company:
Symbiotic
Location:
New York; Canada; Dubai; Hong Kong; London; Portugal; Switzerland
Employment type:
Full time
Work Arrangement:
Remote
Short Summary:
Symbiotic is the infrastructure beneath collateral markets, enabling new categories of neofinance applications. The company is positioned to connect capital and risk across the onchain economy, backed by notable investors.
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.
Requirement:
- 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).
- 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).
- Able to optimize performance 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.