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Principal / Senior Full-Stack Engineer (AI Agents)

United States, San Francisco 225000.00 - 275000.00 USD / Year · Job Posted February 18, 2026
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Job Description

We are hiring 5–10 Full-Stack Engineers over the next 12 months to accelerate the development and scalability of our AI Agent platform. We’re looking for highly autonomous engineers with deep technical experience who thrive in ambiguous, fast-paced environments.

Job Responsibility

  • Design, develop, and maintain full-stack features using TypeScript
  • Build and optimize AI agents using state-of-the-art LLMs
  • Work with GCP (primary) or AWS, infrastructure-as-code, and deployment pipelines
  • Take full ownership of projects—from ideation and architecture to implementation and maintenance
  • Develop reusable tools, prompts, and frameworks for rapid agent creation
  • Proactively identify problems, propose solutions, and execute independently
  • Contribute to architectural decisions and engineering best practices

Requirements

  • 10+ years of engineering experience
  • Strong experience in B2B SaaS environments
  • Full-stack background with a focus on TypeScript
  • Cloud experience with GCP (preferred) or AWS
  • Full-stack TypeScript (frontend + backend)
  • Strong system design and architectural skills
  • Experience with IaC, CI/CD, deployment workflows
  • Familiarity with LLMs and genuine enthusiasm for AI innovation
  • Extreme ownership: Takes responsibility for outcomes end-to-end
  • High agency: Proactively finds and solves the right problems
  • Comfort with ambiguity: Thrives where specs evolve quickly and iteration is constant

Nice to have

Prior AI agent experience is a plus but not required

What we offer

  • Meaningful equity, benchmarked against Pave and Color
  • Health, dental, and vision insurance (basic plan fully covered)
  • Commuter benefits (parking & train)
  • Catered meals and office snacks
  • High-impact role within a small, senior team

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