Founding Senior Software Engineer - Frontend Development

<p><b>About Client : </b><br/><br/>we're not just automating calls-we're transforming how the world communicates.

Our AI voice agents are reshaping sales, support, and customer engagement for leading brands.

Backed by Alt Capital, Y Combinator, and top-tier investors, we've raised $4.7M in seed funding and hit $14M ARR with just 12 people.<br/><br/>We're one of the fastest-growing Voice AI startups and we're on a mission to become the standard for voice automation at scale.

We're also one of the top ranking startups in USA<br/><br/><b>About the Role : </b><br/><br/>As a Founding Senior Frontend Engineer, you'll shape the user experience of our AI voice platform, building intuitive interfaces and tools that power millions of automated conversations.

You'll work across the stack, focusing on React and TypeScript, and collaborate with the founding team to deliver fast, beautiful, and scalable solutions.<br/><br/><b>Key Responsibilities : </b><br/><br/>- Design and build core UI features like prompt management, dashboards, and analytics tools.<br/><br/>- Develop responsive, intuitive interfaces using React, TypeScript, HTML, CSS, and JavaScript.<br/><br/>- Collaborate on backend APIs and DevOps to ensure seamless, scalable systems.<br/><br/>- Lead frontend projects from concept to launch, owning architecture, coding, and iteration.<br/><br/>- Work with customers to onboard, debug, and turn feedback into UX improvements.<br/><br/><b>You Might Thrive If You : </b><br/><br/>- Have 2+ years of experience building production-grade apps with React and TypeScript.<br/><br/>- Hold a degree in CS, CE, or equivalent practical experience<br/><br/>- Take ownership like a founder, proactively solving problems with clean design thinking.<br/><br/>- Thrive in fast-paced environments, quickly learning new tools and frameworks.<br/><br/>- Collaborate effectively, balancing clarity and momentum in small, dynamic teams.<br/><br/><b>Job Details : </b><br/><br/>- Job Type : Full-time, 70 hr/week (50 hr/week onsite with flexible hours + 20 hr/week work from home)<br/><br/>- Cash : 215k - 290k<br/><br/>- Equity : 0.4 - 0.6%<br/><br/>- Location : CA, US<br/><br/>- US Visas : Sponsors Visa & Green Card</p> (ref:hirist.tech)