Halliday

Senior Frontend Engineer

San Francisco, CA | New York, NY · Senior

Sponsorship not specified$150k-$250kDetected 33 days ago

TypeScriptReactFull-Stack DevelopmentDesign SystemsAccessibility

About the role

This is an opportunity to work on cutting-edge technology with a talented team that's redefining how people interact with blockchain.

Build User-Facing Products: Design and develop responsive, performant frontend applications using React and TypeScript that interact with blockchain networks, payment systems, and DeFi protocols while delivering an exceptional user experience.
Develop Core Infrastructure: Build scalable components, design systems, and testing frameworks that support our payments platform and developer tools.
Work Cross-Functionally: Collaborate with product, design, engineering, and partnerships teams to deliver features that solve real user problems and drive product adoption.
Drive Technical Excellence: Identify and implement improvements to enhance performance, accessibility, security, and code quality across our frontend stack.
Halliday is a blockchain company and product lab working to create a unified, cross-chain payments ecosystem.
Design and develop responsive, performant frontend applications using React and TypeScript that interact with blockchain networks, payment systems, and DeFi protocols while delivering an exceptional user experience.
Collaborate with product, design, engineering, and partnerships teams to deliver features that solve real user problems and drive product adoption.
Identify and implement improvements to enhance performance, accessibility, security, and code quality across our frontend stack.
A role with significant autonomy to build out the next generation infrastructure of the blockchain space.

Frontend Expertise: 2+ years of experience building production frontend applications with React and TypeScript.
Technical Proficiency: Strong understanding of modern frontend development including state management, API integration, responsive design, and performance optimization.
Collaborative Spirit: You work well with cross-functional teams, communicate effectively, and thrive in a fast-paced startup environment.
Familiarity with Web3 libraries like ethers.js, viem, or wagmi.
2+ years of experience building production frontend applications with React and TypeScript.
Strong understanding of modern frontend development including state management, API integration, responsive design, and performance optimization.

Contribute to Halliday's public SDKs and APIs, making it easy for developers to integrate blockchain payments into their applications.

The base salary range for this role is $150,000 - $250,000. This reflects the minimum and maximum range across all US locations. This does not include equity or benefits.
The actual base pay is dependent upon many factors, such as: experience, relevant skills, and role level. Your recruiter can share more about the compensation and benefits applicable to your location during the hiring process.

Competitive compensation package, with unlimited PTO and a friendly work environment.
This does not include equity or benefits.

This listing is sourced directly from Halliday's careers page and normalized into a canonical job model.