Get AI-powered advice on this job and more exclusive features. This range is provided by dynamism vc. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range $200,000.00/yr - $280,000.00/yr Direct message the job poster from dynamism vc Dynamism.io | investor & hiring exceptional humans for Hypergrowth startups in San Francisco | Y Combinator and McKinsey alum Founding Senior Software Engineer – Full Stack (Full-Time | San Francisco | In-Person) We’ve partnered with the founder of a fast-scaling voice AI startup to help hire a Founding Senior Engineer to own core product and infrastructure and shape engineering culture from day one. This company is building the “Retool for Voice” — a developer platform that makes it simple to build and deploy voice interfaces across SaaS, logistics, telehealth, and more. With Apple and Google introducing human-like voice assistants to billions of users, this team is building the missing layer between raw LLMs and production-ready voice apps. They launched in March, have grown revenue quickly, and already serve paying customers. This is a ground-floor opportunity to build foundational full-stack systems in a real-time, low-latency environment — working directly with founders and early users, and playing a lead role in setting product and engineering direction. What You’ll Do • Own end-to-end feature development — from customer request to production • Build modular, API-first systems that integrate real-time voice capabilities • Improve latency, reliability, and UX in critical product flows • Contribute across the stack — from backend infra to frontend UX • Help define technical architecture and build the culture you want to work in • Modular backend infra optimized for real-time performance You Might Be a Fit If You… • Have 5+ years of full-stack or backend experience, including owning systems end-to-end • Are strong in React + TypeScript and comfortable jumping between frontend and backend • Have startup experience or thrive in 0→1 environments • Have operated at a Senior, Staff, or Principal level — even if the title didn’t say it • Want to work in-person with a sharp, ambitious team in SF What They’re Looking For Clear communicator — You explain tradeoffs and decisions crisply Founder-level drive — You take ownership without waiting for permission Execution bias — You ship quickly and iterate with users in mind Mission-aligned — You believe voice-first interfaces are the next wave of computing Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Job function Engineering and Information Technology Industries Software Development Referrals increase your chances of interviewing at dynamism vc by 2x Inferred from the description for this job Medical insurance Get notified when a new job is posted. Sign in to set job alerts for “Software Engineer” roles. San Francisco, CA $130,000.00-$238,000.00 5 days ago San Francisco, CA $150,000.00-$250,000.00 4 days ago Software Development Engineer I - Frontend & Mobile San Francisco, CA $99,500.00-$200,000.00 3 days ago San Francisco, CA $130,000.00-$140,000.00 1 day ago San Francisco, CA $150,000.00-$283,000.00 3 days ago San Francisco, CA $99,500.00-$200,000.00 1 day ago Full Stack Software Engineer (L4), Product Localization Engineering Software Engineer (L5) - Open Connect Platform United States $100,000.00-$720,000.00 1 week ago Software Engineer, Research Infrastructure (University Grad) San Francisco, CA $120,000.00-$160,000.00 2 days ago San Jose, CA $100,500.00-$173,250.00 3 days ago Software Engineer (Fullstack) - Payments Web UI Engineer (L4), Identity & Security Experiences San Francisco, CA $99,500.00-$200,000.00 1 day ago eCommerce Full Stack Developer (React / Shopify) - On Site Santa Clara, CA $123,500.00-$191,500.00 3 days ago We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.

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