### **About Halliday**
Halliday is a blockchain company and product lab working to create a unified,
cross-chain payments ecosystem. Its flagship product, Halliday Payments, is a
unified payments platform that makes it easy for users to onramp, swap, and
take other onchain actions. Halliday’s products are built on the Workflow
Protocol, which removes the need to code smart contracts by hand and enables
breakthrough applications to ship in hours, not years.
Backed by a16z and #Hashed, Halliday has worked with prominent developers such
as ApeChain, Story Protocol and DeFi Kingdoms to provide seamless experiences
for both developers and users. The team includes alumni from Stanford,
Harvard, Compound, Meta, Netflix, and more.
### **About the role**
We're looking for a senior-level frontend engineer with deep React and
TypeScript experience to build consumer-facing crypto and payments products.
As a Frontend Engineer at Halliday, you'll build the user-facing products that
power the future of blockchain payments. You'll design and implement
intuitive, high-performance interfaces that make onchain transactions seamless
for millions of users. This is an opportunity to work on cutting-edge
technology with a talented team that's redefining how people interact with
blockchain.
### **What you 'll be doing**
**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.
**Ship Developer Tools** : Contribute to Halliday's public SDKs and APIs,
making it easy for developers to integrate blockchain payments into their
applications.
**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.
**Innovate on Web3 UX** : Push the boundaries of what's possible in blockchain
user experiences, making complex onchain actions feel simple and intuitive.
### **What we’re looking for**
**Frontend Expertise** : 2+ years of experience building production frontend
applications with React and TypeScript. You write clean, maintainable code and
care deeply about user experience.
**Technical Proficiency** : Strong understanding of modern frontend
development including state management, API integration, responsive design,
and performance optimization.
**Product Mindset** : You think beyond just implementing features, you
understand the "why" behind what you're building and advocate for the best
user experience.
**Fast Learner** : You're excited to dive into new technologies, whether
that's blockchain SDKs, payment APIs, or emerging web standards.
**Collaborative Spirit** : You work well with cross-functional teams,
communicate effectively, and thrive in a fast-paced startup environment.
**Location** : Based in or willing to relocate to the San Francisco Bay Area
or New York City.
### **Nice to haves**
**Blockchain Experience** : Previous work with blockchain technologies such as
EVM-based chains, Solana, or Bitcoin. Familiarity with Web3 libraries like
ethers.js, viem, or wagmi.
**Payments Background** : Experience building payment flows, checkout
experiences, or financial products.
**Full-Stack Capabilities** : Comfort working across the stack when needed,
including APIs and backend services.
**Design Sensibility** : Strong eye for design and experience working closely
with designers to implement pixel-perfect interfaces.
**Open Source Contributions** : Active participation in open source projects
or maintenance of public libraries.
### **Why Work at Halliday?**
A role with significant autonomy to build out the next generation
infrastructure of the blockchain space.
Competitive compensation package, with unlimited PTO and a friendly work
environment.
For international candidates - we offer visa sponsorship!
### **Compensation**
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.