Senior / Staff Full Stack Software Engineer

We’re hiring 3-5 Senior/Staff Full Stack Engineers to help build the core product from the ground up. This is genuinely full-stack work: Electron and TypeScript on the frontend, native system-level code in C++ and Swift, and deep integration with LLMs. Every engineer here shapes the product roadmap - you won’t just be writing code, you’ll be thinking about user research, product strategy, and the future of AI-human interaction.

What You’ll Build

• Core Electron app - design, build, and maintain cross-platform desktop features
• End-to-end features - from UI through native modules, spanning both user-facing and infrastructure work
• LLM integration - develop and integrate AI-powered functionality
• Native code - system-level work in C++ (Windows) and Swift (macOS)
• Architecture - help shape technical decisions and company direction

• 5-10 years of experience as a Senior or Staff full-stack engineer (backend-leaning)
• Track record of owning features end-to-end at a high-growth startup or top tech company
• Experience building AI/LLM-powered features
• Background in consumer productivity software
• Willingness and ability to work on-site in San Francisco, 5 days a week

What Sets You Apart

• A technical “spike” - a deep area of passion you’ve gone 10 layers deep on
• Strong hands-on experience with TypeScript, Node.js, React, and Electron
• Founder or early-stage startup experience