Senior/Staff Full Stack Software Engineer

Recruiting From Scratch•San Francisco, CA

3d•Onsite

About The Position

Our client is building an AI-native desktop assistant designed to fundamentally change how people work. The product can see everything happening on a user’s screen and proactively assist without requiring context switching between apps. Recently raised a $40M Series A led by Khosla Ventures, following an earlier seed round backed by General Catalyst, SV Angel, Valor, and Conviction. The company operates at the intersection of AI, desktop systems, native integrations, and productivity software. Small, highly technical team with extremely high ownership and execution standards. Engineers work directly on the future of AI-human interaction and productivity tooling. The company values product intuition, technical depth, curiosity, and startup intensity. Opportunity to build category-defining AI software with massive product ownership and influence.

Requirements

5–10 years of software engineering experience
Strong full stack engineering background with frontend or backend depth
Strong TypeScript, React, and Node.js engineering skills
Experience building consumer or prosumer software products
Experience owning and shipping products/features end-to-end
Experience working at high-growth startups or strong engineering organizations
Experience building AI/LLM-powered features or workflows
Familiarity with AI tooling, automation systems, or productivity software
Backend candidates should have strong systems experience in Swift or C++
Strong product intuition and customer empathy
Comfortable operating in ambiguous startup environments
Strong communication and collaboration skills
High ownership mentality and bias toward execution
Strong attention to detail and product quality
Comfortable working in-person in a high-intensity startup environment

Nice To Haves

Experience building Electron or desktop-native applications
Experience integrating LLMs into production user-facing products
Strong TypeScript + React + Node.js depth
Native systems engineering experience in Swift or C++
Consumer productivity software experience
Former founder or early-stage startup engineer experience
Experience at high-growth startups from Seed to Series D
Strong ownership over shipped customer-facing products
Demonstrated obsession with AI tooling and emerging AI workflows
Side projects, open-source contributions, or AI experiments
Clear technical “spike” in a domain such as AI, systems, architecture, or frontend UX
Experience making architectural decisions in small engineering teams
Strong startup execution mentality with rapid iteration speed
Ability to deeply reason through product and systems tradeoffs
Genuine excitement about AI-native user experiences

Responsibilities

Build and scale a cross-platform AI desktop assistant used for productivity workflows
Design and implement core features across frontend, backend, and native desktop layers
Develop AI and LLM-powered product experiences integrated directly into user workflows
Build and maintain Electron desktop application infrastructure
Own end-to-end implementation of features from UI to backend services and native integrations
Work with TypeScript, React, Node.js, Electron, Swift, and C++
Develop performant native integrations for macOS and Windows environments
Build systems that understand on-screen context and user workflows
Collaborate on AI-powered automation, copilots, and productivity tooling
Help shape technical architecture and long-term product direction
Rapidly prototype and ship user-facing features in a fast-moving environment
Work closely with product and leadership teams on roadmap and product strategy
Build highly polished consumer-grade product experiences
Optimize reliability, performance, and user experience across desktop systems
Operate with high ownership and autonomy in a small engineering organization