Join a high-velocity team building the future of AI-driven interfaces. You will own the frontend for a sophisticated workspace tool, shipping polished, real-time interfaces that feel instant and intuitive. As a core engineer, you will make critical design and product decisions, prototyping rapidly to bridge the gap between complex backend logic and seamless user experience.
Back to all jobs
Find a job withJack
This job is no longer actively hiring. Open Roles to see active jobs.
San Francisco, United States$140K – $240K + Equity
Senior Frontend Engineer at fast-growing AI startup
Are you a frontend expert who obsesses over the details that make software feel truly high-quality? A fast-growing AI startup in San Francisco is looking for a Senior Frontend Engineer to own their core product interface. You'll work with a modern stack including React, Next.js, and real-time collaboration tools, shipping features at lightning speed in a high-autonomy environment. If you thrive on making design decisions and building polished, complex interfaces for LLM-based tools, this is your chance to join a well-funded team backed by top-tier VCs and make a massive impact from day one.
Overview
Role overview
Company
About the company
Fast-growing AI startup
Responsibilities
What you will do
- Architect and build complex, performant frontend interfaces using React, Next.js, and TypeScript.
- Implement real-time collaborative features and rich text editing tools to support seamless user workflows.
- Partner with the founding team to make rapid design decisions and maintain a high bar for visual polish.
Candidate profile
Who this is a fit for
- Has 4+ years of professional frontend experience with a portfolio of complex, high-quality production applications.
- Possesses a strong eye for design and product intuition, capable of making UX decisions without pixel-perfect specs.
- Is an expert in TypeScript and the modern React ecosystem with an obsession for performance and craft.
What makes it remarkable
Why this role is remarkable
- Ship high-impact features in a high-autonomy environment where you own the product vision from idea to execution.
- Join a well-funded team backed by top-tier VCs working at the cutting edge of AI and collaborative software.
- Work in person at a beautiful San Francisco office with a highly collaborative, fast-paced team of elite engineers.
Jack & Jill
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Meet Jack
Jack gets to know what you're great at and what you want next, then searches 14 million jobs daily and introduces you directly to hiring managers.
How does this work?
Jack's an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack's network.
If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
Jack