Senior/Staff Full Stack Software Engineer

• Location: San Francisco, CA
• Company Stage of Funding: Series A / High-Growth AI Consumer Startup
• Office Type: On-site (5 days/week in SF)
• Salary: $200,000 – $300,000 Base
• Equity: Competitive
• Visa: Open to OPT, TN, and H-1B transfers

Company Description

• 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.

What You Will Do

• 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

Ideal Candidate Background

• 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
• Experience with Electron desktop applications is highly valuable
• 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

Strong Signals

• 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

Compensation and Benefits

• Base salary: $200,000 – $300,000
• Competitive equity package
• Opportunity to work on cutting-edge AI desktop software
• Massive ownership and product influence
• High-growth startup with strong investor backing
• Small, highly technical engineering team
• Exposure to AI, native systems, desktop architecture, and LLM integrations
• Opportunity to shape the future of AI-powered productivity software
• Fast-paced environment with strong career growth potential

Why Join

• This is a rare opportunity to work on a genuinely novel AI product redefining how humans interact with software.
• The company is building an AI assistant deeply integrated into real-world workflows instead of isolated chat interfaces.
• Engineers have direct ownership over both technical systems and product direction.
• The team combines strong technical talent, exceptional investor backing, and clear product-market excitement.
• If you enjoy AI-native products, desktop systems, fast execution, product ownership, and building ambitious user experiences, this role offers exceptional upside and technical scope.