Full-Stack Software Engineer ($190k-$225k + Equity) at Hyperbound

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 Software Engineer Salary $190k-$225k + Equity Company Description Hyperbound is a YC S23-backed startup that recently raised a $15M Series A to build the first Revenue Activation Platform. As an agentic OS for sales, Hyperbound closes the loop between coaching and execution for industry leaders including IBM, LinkedIn, Bloomberg, Notion, Vanta, and Monday.com. Job Description Join Hyperbound as a Full-Stack Software Engineer in San Francisco to build the future of agentic sales. Working directly with engineer-founders, you will develop mission-critical features using a modern TypeScript stack including Next.js, NestJS, and AWS. This high-intensity role involves building real AI components that directly drive multi-million dollar enterprise contracts. Location San Francisco, USA Why this role is remarkable Join a high-growth YC S23 startup that recently closed a $15M Series A, 5x'd its ARR in the last year, and is growing 20% month-over-month.Work in a purely engineer-driven culture where the founders are developers and the team consists of former founders who prioritize technical excellence and rapid shipping.Experience massive impact where your code is demoed to 20,000 sales reps or serves as the primary reason a customer signs an $800k contract. What You Will Do Build and deploy full-stack applications and agentic systems across the stack using Next.js/React, Node.js/NestJS, PostgreSQL, MongoDB, and TypeScript.Support and scale AWS infrastructure, deployment strategies, and CI/CD pipelines to handle rapid growth and high-concurrency enterprise demands.Integrate and optimize LLM APIs and agent frameworks to transform how sales organizations operate and change the structure of customer revenue teams. The ideal candidate Possesses deep full-stack capability within a modern TypeScript environment and has a proven track record of shipping production-grade code to enterprise users.Brings previous early-stage startup experience or a founder's mentality, having built something from zero or deliberately chosen high-growth, high-stakes environments.Demonstrates practical experience building with AI/LLM APIs and agent frameworks, moving beyond theoretical knowledge to deliver functional, value-driving product 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.