Senior Fullstack Software Engineer, AI Agents jobs in United States
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11x · 5 hours ago

Senior Fullstack Software Engineer, AI Agents

positionUnited States
timeFull-time
remoteRemote
seniorityMid, Senior Level
date3+ years exp

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.

Artificial Intelligence (AI)Information TechnologySoftware
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H1B Sponsor Likelynote

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

Qualification

TypescriptReactNextJSNodeJSLarge language modelsPrompt engineeringAI infrastructureTechnical writingCollaborationRapid learning

Required

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

Preferred

Experience with large language models, prompt engineering, or AI infrastructure

Company

11x

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11x develops autonomous digital workers to help organizations optimize their processes.
dateFounded in 2023
location
San Francisco, California, USA
people-size51-200 employees
web-link
https://11x.ai

H1B Sponsorship

11x has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (20)
2024 (9)
2023 (2)

Funding

Current Stage
Growth Stage
Total Funding
$76M
Key Investors
Andreessen HorowitzBenchmarkProject A Ventures
2024-09-30Series B· $50M
2024-09-16Series A· $24M
2023-08-11Pre Seed· $2M

Recent News

11X AI INC.
11x Secures $24 Million Series A Funding Led by Benchmark to Create the Future of Digital Work
2025-06-29
TechCrunch
Week in Review: Instacart CEO heads to OpenAI
2025-05-15
SiliconANGLE
Enterprise stalwarts get serious about AI agents
2025-05-10
Company data provided by crunchbase