Staff AI Agents Architect & Fullstack Lead

11x; San Francisco (CA); On-site; USD 150,000 - 250,000; Full time

Job summary

11x in San Francisco is seeking a Staff Software Engineer with deep fullstack expertise to lead architecture and product development for AI-powered autonomous digital workers.

You will mentor engineers, set engineering standards, and collaborate with the CTO and cross-functional teams to deliver production-grade systems in a fast-moving AI-native environment. This hands-on leadership role requires shaping design choices, improving developer efficiency, and ensuring reliability.

Qualifications

• 6+ years of software engineering experience with leadership on complex projects.
• Expertise with modern fullstack frameworks: Typescript, React, NextJS, NodeJS.
• Proven ability to ship scalable systems in fast-growing environments.
• Strategic thinker balancing speed and quality while guiding technical vision.

Responsibilities

• Architect, build, and scale fullstack systems for autonomous AI agents.
• Lead technical decisions across projects for long-term scalability and reliability.
• Evaluate new technologies, model APIs, and prompting strategies.
• Collaborate with design, product, and GTM teams to define roadmaps.
• Drive internal engineering standards through mentorship and code reviews.

Skills

Leadership

Architectural design

Mentoring

Typescript

React

NextJS

NodeJS

Tools

Typescript

React

NextJS

NodeJS

Job description

11x in San Francisco is seeking a Staff Software Engineer with deep fullstack expertise to lead architecture and product development for AI-powered autonomous digital workers.

You will mentor engineers, set engineering standards, and collaborate with the CTO and cross-functional teams to deliver production-grade systems in a fast-moving AI-native environment. This hands-on leadership role requires shaping design choices, improving developer efficiency, and ensuring reliability.