Senior Fullstack Software Engineer, AI Agents
4 weeks ago
Senior Fullstack Software Engineer, AI Agents Apply for the Senior Fullstack Software Engineer, AI Agents role at 11x . About 11x At 11x, we’re building autonomous digital workers that handle routine work end-to-end, freeing humans to focus on creating, innovating, and building meaningful relationships. We’re one of the world’s fastest‑growing AI companies, achieving a 20× increase in ARR and raising $75M+ from leading investors including a16z and Benchmark. The team works in‑person in our San Francisco office. About the Role We’re looking for a fullstack engineer with a passion for applied research and cross‑functional collaboration. In this role, you’ll work closely with engineering leadership and our AI partners to prototype, build, and scale the next generation of autonomous digital workers. This is an immersive opportunity to deepen your expertise in large language model applications, system design, and human‑AI interaction while learning how fast‑moving AI companies operate from the inside. What You’ll Do 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. Ideal Candidates Have 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. Bonus: experience with large language models, prompt engineering, or AI infrastructure. Job Details Seniority level: Mid‑Senior level Employment type: Full‑time Job function: Engineering and Information Technology Industries: Software Development Location and Compensation Canada base salary range: CAD $180,000 – $225,000 Seattle base salary range: USD $150,000 – $250,000 Final offer will be based on a variety of factors, including role level, relevant experience, skills, and job‑related expertise. Equal Employment Opportunity 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. Referrals increase your chances of interviewing at 11x by 2×. #J-18808-Ljbffr
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Senior Fullstack Software Engineer, AI Agents
4 weeks ago
Toronto, Canada 11x Full timeSenior Fullstack Software Engineer, AI Agents Apply for the Senior Fullstack Software Engineer, AI Agents role at 11x. About 11x At 11x, we’re building autonomous digital workers that handle routine work end-to-end, freeing humans to focus on creating, innovating, and building meaningful relationships. We’re one of the world’s fastest‑growing AI...
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Senior Fullstack Engineer, AI Agents
4 weeks ago
Toronto, Canada 11x Full timeA leading AI company in Canada is seeking a Senior Fullstack Software Engineer to design and innovate autonomous digital solutions. The candidate will work on fullstack architectures to support AI agents, collaborating closely with product and design teams. Ideal applicants have over 3 years of experience in software engineering with a strong foundation in...
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Senior Fullstack Engineer, AI Agents
4 weeks ago
Toronto, Canada 11x Full timeA leading AI company in Canada is seeking a Senior Fullstack Software Engineer to design and innovate autonomous digital solutions. The candidate will work on fullstack architectures to support AI agents, collaborating closely with product and design teams. Ideal applicants have over 3 years of experience in software engineering with a strong foundation in...
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Senior Fullstack Software Engineer, AI Agents
10 hours ago
Toronto, Ontario, Canada 11x Full timeWhy 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...
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Senior Fullstack Engineer
3 weeks ago
Toronto, Canada Siena AI Full timeJoin to apply for the Senior Fullstack Engineer role at Siena AI Meet Siena Siena is the first intelligence layer for customer experience. We’re creating an operating system of AI agents that learn, remember, and act across every customer touchpoint—from support conversations to shopping experiences to voice and social media interactions. Siena doesn’t...
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Senior Fullstack Engineer
3 weeks ago
Toronto, Canada Siena AI Full timeJoin to apply for the Senior Fullstack Engineer role at Siena AI Meet Siena Siena is the first intelligence layer for customer experience. We’re creating an operating system of AI agents that learn, remember, and act across every customer touchpoint—from support conversations to shopping experiences to voice and social media interactions. Siena doesn’t...
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Fullstack Software Engineer
3 weeks ago
Toronto, Canada Siena AI Full timeMeet Siena Siena is the first intelligence layer for customer experience. We're creating an operating system of AI agents that learn, remember, and act across every customer touchpoint—from support conversations to shopping experiences to voice and social media interactions. Siena doesn't just automate support; it powers shopping agents, builds persistent...
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Software Development Engineer III
4 weeks ago
Toronto, Canada Latinx in AI (LXAI) Full timeOverview Software Development Engineer III / Senior Software Development Engineer - Full Stack Workday, Inc. Remote friendly (Canada, ON, Toronto Canada). Worldwide Technology. About The Team Agent Factory is where Workday’s next chapter gets built. We’re forming small, senior, cross-functional AI teams that bring together product leaders, machine...
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Toronto, Canada Software International Full timeSenior Software Developer Agentic AI Experimentation & Prototyping Job Openings Senior Software Developer Agentic AI Experimentation & Prototyping About the job Senior Software Developer Agentic AI Experimentation & Prototyping Software International (SI) supplies technical talent to a variety of clients ranging from Fortune 100/500/1000 companies to small...
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Software Development Engineer III
4 weeks ago
Toronto, Canada Latinx in AI (LXAI) Full timeOverviewSoftware Development Engineer III / Senior Software Development Engineer - Full StackWorkday, Inc. Remote friendly (Canada, ON, Toronto Canada). Worldwide Technology.About The TeamAgent Factory is where Workday’s next chapter gets built. We’re forming small, senior, cross-functional AI teams that bring together product leaders, machine learning...
