Founding Engineer

About the Role

This is the first engineering hire at an early-stage B2B SaaS company building an agentic integration platform with paying enterprise customers. You will own core systems end-to-end and set the engineering patterns every future hire builds on, working directly with the founders to ship production-ready software.

What You'll Do

Own the agent platform, infrastructure, and integrations runtime end-to-end. Define the engineering standards and architectural patterns the growing team will inherit. Collaborate closely with the founders, contributing technical opinion and leadership, not just code. Ship to production consistently, delivering reliable and observable systems with measurable customer impact.

What We're Looking For

3 to 9 years of professional software engineering experience building and shipping production systems. Demonstrated ability to build something from zero to one, in an early-stage startup or a serious side project. Experience integrating or building workflows around large language models (LLMs) and agent-based platforms.

Proficiency in TypeScript for full-stack development, React for frontend, and Node.js for backend. Experience with AWS for cloud infrastructure and PostgreSQL for data storage and database design. Track record of owning end-to-end feature development across frontend, backend, and infrastructure.

Experience implementing observability, monitoring, and tracing in production systems. Experience building reliable retry and queuing patterns in distributed systems. Strong computer science or engineering fundamentals, ideally from a rigorous academic background.

Background at an early-stage, venture-backed startup, or comparable fast-paced environment. Based in the San Francisco Bay Area, or US-based with a concrete relocation plan to San Francisco. Compensation & Benefits Salary range: $150,000 to $250,000 USD annually.

Visa sponsorship is available where an O-1 visa is a realistic path. Location On-site, five days a week in San Francisco, California, United States.

ABOUT THE ROLE

This is the first engineering hire at an early-stage B2B SaaS company building an agentic integration platform with paying enterprise customers. You will own core systems end-to-end and set the engineering patterns every future hire builds on, working directly with the founders to ship production-ready software.

WHAT YOU'LL DO

• Own the agent platform, infrastructure, and integrations runtime end-to-end.
• Define the engineering standards and architectural patterns the growing team will inherit.
• Collaborate closely with the founders, contributing technical opinion and leadership, not just code.
• Ship to production consistently, delivering reliable and observable systems with measurable customer impact.

WHAT WE'RE LOOKING FOR

- 3 to 9 years of professional software engineering experience building and shipping production systems.

• Demonstrated ability to build something from zero to one, in an early-stage startup or a serious side project.
• Experience integrating or building workflows around large language models (LLMs) and agent-based platforms.
• Proficiency in TypeScript for full-stack development, React for frontend, and Node.js for backend.
• Experience with AWS for cloud infrastructure and PostgreSQL for data storage and database design.
• Track record of owning end-to-end feature development across frontend, backend, and infrastructure.
• Experience implementing observability, monitoring, and tracing in production systems.
• Experience building reliable retry and queuing patterns in distributed systems.
• Strong computer science or engineering fundamentals, ideally from a rigorous academic background.
• Background at an early-stage, venture-backed startup, or comparable fast-paced environment.
• Based in the San Francisco Bay Area, or US-based with a concrete relocation plan to San Francisco. COMPENSATION & BENEFITS Salary range: $150,000 to $250,000 USD annually. Visa sponsorship is available where an O-1 visa is a realistic path. LOCATION On-site, five days a week in San Francisco, California, United States.