Founding Senior Engineer
About The Position
Our client is an early-stage applied AI company building technology that enables organizations to deploy highly capable AI employees within real-world digital environments. Their platform allows AI agents to operate using common workplace tools—such as browsers, messaging platforms, and productivity software—to support operational and knowledge-work tasks across industries. Since launching, the company has experienced strong organic demand from both enterprise and high-growth technology customers. The team is small, highly technical, and focused on building production-ready AI systems that can scale across a wide variety of real business workflows. Backed by leading venture investors and experienced founders from top universities and technology companies, the organization is entering a rapid growth phase and is looking to expand its founding engineering team. This is a rare opportunity to join an early team building cutting-edge AI infrastructure while helping define the technical and product direction of the company.
Requirements
- 5+ years of experience as a software engineer with strong backend capabilities
- Experience building and owning complex production systems end-to-end
- Strong programming experience with Python and TypeScript
- Experience working across the full stack, including backend services, APIs, and infrastructure
- Familiarity with modern AI or LLM tooling and building AI-powered products
- Experience working in high-growth startups or high-performance engineering teams
- Strong product instincts and ability to work closely with customers and stakeholders
- Ability to operate independently, take ownership, and execute quickly
- Strong communication and collaboration skills
Nice To Haves
- Experience working on AI platforms, agent frameworks, or LLM-driven applications
- Familiarity with tools such as React, Node.js, Next.js, AWS, LangChain, or HuggingFace
- Experience building developer platforms, integrations, or workflow automation systems
- Prior startup or founding-team experience
- Experience working in high-ambiguity environments with rapid product iteration
- Background from high-growth technology companies or venture-backed startups
Responsibilities
- Design and build scalable backend systems that support AI-driven automation and agent workflows
- Develop full-stack features across backend services, infrastructure, and user-facing interfaces
- Build and maintain integrations with external tools, APIs, and enterprise systems
- Work closely with founders and early customers to design solutions for real-world use cases
- Architect reliable infrastructure for deploying AI systems at scale
- Contribute to AI product development using modern machine learning and LLM tooling
- Help define engineering standards, best practices, and development processes as the team grows
- Collaborate across product, engineering, and customer teams to ship features quickly in a fast-moving startup environment
- Mentor and support future engineering hires as the team expands
Benefits
- Meaningful early-stage equity with significant upside potential
- Opportunity to join a founding engineering team and shape the technical direction of the company
- Work directly with experienced founders and a highly technical early team
- Exposure to cutting-edge AI infrastructure and real-world AI deployments
- Collaborative, fast-paced startup environment with significant ownership and autonomy
- Office located in San Francisco with an in-person engineering culture
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
Education Level
No Education Listed
