Fullstack Software Engineer, Agents

Company: 11x AI Inc.
Location: San Francisco
Posted on: May 31, 2025

Job Description:

Why 11x NowAt 11x, we're building autonomous digital workers that handle routine work end-to-end, freeing humans to focus on what they do best-creating, innovating, and building meaningful relationships. We're one of the world's fastest growing AI companies.We've achieved a 20x increase in ARR and raised $75M+ from leading investors including a16z and Benchmark. Our team works in-person in our San Francisco office.About the RoleAs a Fullstack Engineer at 11x, you'll research, architect and build the next generation of autonomous digital workers. You'll work across AI systems, product design, and user experience-shipping fast, owning what you build, and working directly with the latest models (often pre-launch) from partners like OpenAI, Anthropic, and Langchain. This is a unique opportunity to shape a new product category from the ground up and see your work drive real impact, fast.What You'll Do

• Design, build, and deploy autonomous AI agents from concept to production.
• Develop reliable, scalable systems for orchestrating complex agent workflows.
• Create intuitive interfaces that make AI capabilities accessible to non-technical users.
• Own features end-to-end with our core value of velocity driving your work.Ideal Candidates Have
  • 3+ years of experience in a product-focused software engineering role.
  • Proven record of shipping intuitive, scalable products with measurable user impact.
  • Plus: high-growth startup experience either as a founder or an early-stage engineer.
  • Strong proficiency in Typescript, React, NextJS, NodeJS.
  • Entrepreneurial mindset with a bias toward action and rapid iteration.11x is an equal opportunity employer and does not discriminate on the basis of race, gender, sexual orientation, gender identity/expression, national origin, disability, age, genetic information, veteran status, marital status, pregnancy or related condition, or any other basis protected by law.
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Keywords: 11x AI Inc., San Jose , Fullstack Software Engineer, Agents, IT / Software / Systems , San Francisco, California