Full Stack Engineer ($200k-$220k + Equity) at Series A sales tech startup

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network. The next step is to speak to Jack. Job Title Full Stack Engineer, Product Salary $200k-$220k + Equity Company Description Series A sales tech startup Job Description Join a high-velocity engineering team building an agentic OS for sales that closes the loop between behavior and execution. You will ship full-stack features across Next.js and Node.js, owning your code from database to UI. This role offers the chance to drive immediate impact for global enterprise clients within a rapidly scaling, well-funded Series A startup environment. Location San Francisco, USA Why this role is remarkable Work at the frontier of agentic AI with a company that recently 5x'd its ARR and is growing 20% month-over-month. Join a well-funded Series A startup backed by top-tier VCs, offering meaningful early-stage equity and potential for wealth creation. High-impact environment where you ship weekly and see your features used by thousands of reps at the world's largest enterprises. What You Will Do Build and scale features end-to-end using Next.js, React, Node.js, and TypeScript across both PostgreSQL and MongoDB. Take full ownership of the stack, managing everything from UI implementation to AWS infrastructure and production CI/CD pipelines. Partner directly with the founding team to scope product features and iterate rapidly based on direct customer feedback. The ideal candidate Proven experience shipping production-grade code in fast-moving, high-growth environments or as a previous startup founder. Expertise across the modern TypeScript stack with the ability to diagnose and fix architectural root causes independently. A low-ego, high-output professional who prefers direct feedback and takes pride in delivering polished, high-impact features. Who are Jack & Jill? 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. 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. 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. We never post fake jobs This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it. Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.