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.