Full Stack Engineer (Backend-Focused) Location: Hybrid San Francisco (In-office 2-3 days/week) Position Type: Full-Time (Permanent) Work Policy: Hybrid (No visa sponsorship) Start Timeline: ASAP About A fast-growing AI company building a transformative platform capable of handling millions of users and transactions per day. Backed by a16z and fresh off a successful Series A, the company is preparing for a major Series B. This is a high-intensity, high-opportunity environment with a top-tier team and strong technical leadership. Why join Join a rocketship startup before its Series B Help scale a platform expected to serve millions of users and transactions daily Work directly with the CTO and co-founders Equity + competitive comp based on Series A valuation Friendly, collaborative, top-talent culture Massive ownership and autonomy Compensation Base Salary: $160,000 $250,000 (Target range: $160,000 $180,000; higher possible for candidates with 8+ years of experience and exceptional background) Tech environment Languages: Golang, TypeScript Frontend: React, TypeScript Infrastructure: Kubernetes, cloud-native systems (e.g., AWS or GCP) Focus: High-scale backend systems, API design, infrastructure ownership Role summary Hiring two backend-heavy Full Stack Engineers to help scale an AI-driven platform. You'll work on core backend infrastructure and contribute to frontend features. Ideal for hands-on engineers with systems expertise and a founders mindset. Responsibilities Build and scale backend systems and infrastructure Own APIs, backend services, and cloud infrastructure Contribute to React/TypeScript frontend (30-40%) Collaborate closely with product and engineering leadership Work onsite 2-3 days/week in SF office Thrive in a high-performance, fast-moving team Must-have qualifications 4-10 years of experience in software engineering Minimum 2-3 years experience in Golang Strong coding skills with Golang Deep understanding of backend systems, APIs, and databases Experience with Kubernetes and cloud infrastructure Proficiency in React and TypeScript Experience building and scaling backend systems from scratch Experience at large tech companies or high-growth startups with high traffic/scale (e.g., Lyft, DoorDash, TikTok) Strong technical background with a degree from a top CS program (not bootcamps) Founder mindset: hard work, independence, ownership Willingness to work long hours Passion for AI-driven technologies Flexibility and 'no ego' attitude Preferred qualifications Experience working at social or mobility platforms (e.g., TikTok, Instagram, DoorDash, Lyft) Worked in early-stage startups or Series A/B environments Exposure to high-scale system design and infrastructure performance tuning