All roles

Open role

[Remote] Senior Fullstack Software Engineer, AI Agents

Remote · Japan Full-time

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.

Responsibilities

  • Design, build, and iterate on fullstack systems that power AI agents from concept to deployment
  • Research and evaluate new approaches to agent orchestration, prompting strategies, and model alignment
  • Collaborate with product, design, and engineering teams to improve UX and usability for non-technical users
  • Share learnings, document findings, and contribute to the evolution of internal best practices
  • Participate in peer reviews, brainstorming sessions, and technical deep dives with our global team

Skills

  • 3+ years of experience in a product-oriented software engineering role
  • A strong foundation in Typescript, React, NextJS, and NodeJS
  • Experience working in fast-paced environments with a track record of rapid learning and iteration
  • Interest in research, technical writing, or contributing to knowledge-sharing within a team
  • Experience with large language models, prompt engineering, or AI infrastructure

Company Overview

  • The 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 Sponsorship

  • 11x has a track record of offering H1B sponsorships, with 5 in 2025. Please note that this does not guarantee sponsorship for this specific role.
  • More open positions

    [Remote] Senior Machine Learning Engineer, GenAI Security

    Work from home Full-time role

    [Remote] Sales Development Manager - AI Frontier Labs

    Work from home Full-time role

    [Remote] Director of Business Development- Lifeycle Support and Solutions (Job ID: 4314)

    Work from home Full-time role

    [Remote] Healthcare Venture Capital Member of the Board of Advisors

    Work from home Full-time role

    [Remote] Sr. Security Engineer II

    Work from home Full-time role

    [Remote] Account Director

    Work from home Full-time role

    Supply Chain Procurement Specialist (Level 2or 3)

    Work from home Full-time role

    Remote Healthcare Customer Service Representative – Patient Support, Insurance Inquiry & Digital Engagement at careerzynith

    Work from home Full-time role

    SEO Trainer (Remote, Part time)

    Work from home Full-time role

    Account Manager

    Work from home Full-time role

    Remote Account Director- OTE (Cyber Security)

    Work from home Full-time role

    [Remote] Sr. Infrastructure Project Manager

    Work from home Full-time role

    Channel Business Manager

    Work from home Full-time role

    Medical Record Retrieval Specialist - Palm Beach, FL

    Work from home Full-time role

    [Remote] Associate II, Fund Administration (Core IS)

    Work from home Full-time role

    Data Entry Specialist – Remote Part‑Time Virtual Position with careerzynith – Flexible Schedule, Career Growth & Competitive Benefits

    Work from home Full-time role

    Experienced Data Entry Specialist – Online Data Management for Teens at careerzynith

    Work from home Full-time role

    Pet Host Family – Work From Home With Dogs

    Work from home Full-time role

    Patent Docketing Specialist

    Work from home Full-time role

    Fraud Detection Representative- Remote

    Work from home Full-time role

    Medical Director (Full-Time)

    Work from home Full-time role