Founding Engineer

About the Role

This is the first engineering hire at an early-stage B2B SaaS company building an agentic integration platform used by paying enterprise customers. You will own core systems end-to-end and set the engineering patterns that every future hire will build on, working directly alongside the founders.

What You'll Do

• Own the agent platform, infrastructure, and integrations runtime end-to-end.
• Define and establish engineering patterns and standards that the growing team will build on.
• Collaborate directly with the founders, contributing technical opinion and leadership, not just code.
• Ship reliable, observable production systems consistently and at pace.

What We're Looking For

• 3 to 9 years of professional software engineering experience, preferably at early-stage startups or with a strong track record of 0-to-1 building.
• Proficiency in TypeScript and React for frontend development.
• Proficiency in Node.js for backend development.
• Experience integrating or building workflows around large language models (LLMs) and agent-based platforms.
• Experience with AWS for cloud infrastructure and PostgreSQL for data storage and database design.
• Demonstrated ownership of end-to-end feature development across frontend, backend, and infrastructure with measurable customer impact.
• Experience implementing observability, monitoring, tracing, and reliable retry and queuing patterns in distributed systems.
• A broad software engineering background rather than a narrow ML research or single-domain specialisation.
• Strong academic foundation in computer science or engineering, or comparably strong demonstrated achievement.
• Based in or willing to relocate to the San Francisco Bay Area for on-site work.

Compensation & Benefits

Salary range: $150,000 to $250,000 USD annually. Visa sponsorship is available.

Location

On-site, five days a week in San Francisco, California, United States. Candidates must be based locally or have a concrete relocation plan.