Founding Engineer

About the Role This is a first engineering hire opportunity at an early-stage agentic integration platform serving paying enterprise customers. You'll own core systems end-to-end and set the engineering patterns that every future hire will build on — working shoulder-to-shoulder with the founders to ship reliable, production-ready software. What You'll Do Own the agent platform, infrastructure, and integrations runtime end-to-end. Establish engineering patterns and standards that will guide the team as it scales. Collaborate directly with founders, contributing technical opinion and leadership — not just code. Ship to production continuously, delivering observable and reliable systems with measurable customer impact. What We're Looking For 3+ years of software engineering experience building and shipping production systems, ideally in fast-paced startup environments. Demonstrated ability to take a product from 0 to 1, whether in an early-stage startup or a substantial side project. Proficiency in TypeScript and React for front-end development. Proficiency in Node.js for back-end 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. Experience owning end-to-end feature development across frontend, backend, and infrastructure. Experience implementing observability, monitoring, tracing, and reliable retry/queuing patterns in distributed systems. Compensation & Benefits Salary range: $150,000 – $250,000 USD annually . Visa sponsorship is available. Location On-site in San Francisco, California, United States .