Job Details

Overview

Founding Full Stack Engineer × Hypesonic (San Francisco - On-Site)

Hypesonic is building the AI Copilot for Growth and Marketing. Our AI platform determines how to engineer growth. We analyze every possible growth channel and make it simple to easily scale channels up. From mining massive datasets, extracting cultural signals, and autonomously creating self-improving content using the latest AI that spreads across paid ads and organic. We help top brands and high-growth startups quantitatively dominate with speed and precision. We've raised a $3M seed round from a Tier 1 VC Fund (Accel Partners) with offers received from Greylock, Sequoia, General Catalyst and Bain Capital Ventures. We have paying customers who are already using and getting value from our platform. You'll be scaling a proven solution. If you want to own the technology behind the company that autonomously drives growth, one that controls the flow of information, drives demand, and creates attention for things on a global scale, let's talk.

What You'll Do

• Build the Full-Stack Site Where the AI Agents Live: Design, develop, and deploy a full stack application that perform end-to-end marketing tasks. This includes agents for market research, creative strategy, automated video editing from scripts, and influencer research + outreach.
• Architect the Agent Operating System: Create the core infrastructure that enables our AI agents to collaborate, operate reliably, and scale. You'll build the systems for task orchestration, data flow between agents, and human-in-the-loop feedback.
• Engineer the Creative Engine: Develop the full-stack applications and generative pipelines that allow our agents to create novel content, from writing scripts to editing and producing final video assets.
• Ship Foundational Products: You will own features from 0 to 1 in a greenfield environment. You'll be launching core capabilities that directly empower our agents and deliver immediate value to our customers.
• Shape the Technical Vision: Partner directly to make key architectural decisions, define the product roadmap, and establish a culture of engineering excellence from day one.

What We're Looking For

• You have 3-5+ years of experience building full-stack software products and are excited by the challenge of building something that has never existed before.
• Our stack is: Next.js, Node.js, Python, React, TypeScript, PostgreSQL
• You write clean, scalable code in TypeScript (React) and Python and are comfortable building and managing infrastructure on AWS.
• You have experience or a deep intellectual curiosity in building AI-driven systems, multi-agent workflows, or platforms that automate complex human tasks. Experience with LLMs, generative AI, or agentic frameworks is a huge plus.
• You're inherently curious about how influence works, what makes content go viral, and how creative ideas spread online.
• You're interested in working hard and achieving greatness.
• You have a bias for action and rapid iteration. You enjoy working in a fast-paced environment where you can have a direct impact and see your work go live quickly.

YOU MUST BE IN SAN FRANCISCO OR WILLING TO RELOCATE