[Remote] Senior Fullstack Software Engineer, AI Agents

Note: The job is a remote job and is open to candidates in USA. 11x is one of the world’s fastest-growing AI companies, focused on building autonomous digital workers. The Senior Fullstack Software Engineer will work on designing and developing fullstack systems for AI agents, collaborating with various teams to enhance user experience and contribute to internal best practices.ResponsibilitiesDesign, build, and iterate on fullstack systems that power AI agents from concept to deploymentResearch and evaluate new approaches to agent orchestration, prompting strategies, and model alignmentCollaborate with product, design, and engineering teams to improve UX and usability for non-technical usersShare learnings, document findings, and contribute to the evolution of internal best practicesParticipate in peer reviews, brainstorming sessions, and technical deep dives with our global teamSkills3+ years of experience in a product-oriented software engineering roleA strong foundation in Typescript, React, NextJS, and NodeJSExperience working in fast-paced environments with a track record of rapid learning and iterationInterest in research, technical writing, or contributing to knowledge-sharing within a teamExperience with large language models, prompt engineering, or AI infrastructureCompany OverviewThe autonomous digital workforce for GTM teams. It was founded in 2023, and is headquartered in San Francisco, California, USA, with a workforce of 51-200 employees. Its website is https://11x.ai.Company H1B Sponsorship11x has a track record of offering H1B sponsorships, with 5 in 2025. Please note that this does not guarantee sponsorship for this specific role.