Founding Product Engineer

ABOUT THE ROLE

Join an early-stage B2B SaaS pricing company as a hands-on product engineer, owning complete product areas from customer discovery through launch and iteration. You will shape the architecture and engineering practices behind AI-driven pricing and monetization tools, where reliable financial logic and useful agent-driven workflows are essential.

WHAT YOU'LL DO

• Scope product needs with customers, design versioned APIs, build user interfaces, and deliver complete product modules.
• Design and evolve systems for AI-driven workflows across web applications, conversational interfaces, and third-party integrations.
• Make product features usable by LLM agents through MCP-compatible services and other agent tooling.
• Move pricing and business logic into backend services to support accurate, dependable financial calculations.
• Extend typed data models for pricing concepts and develop maintainable APIs and services.
• Establish testing, observability, deployment, and performance practices for production systems.
• Lead technical discussions, mentor teammates, and investigate production issues with a focus on root causes.

WHAT WE'RE LOOKING FOR

• At least 8 years of software engineering experience, including startup experience and staff-level ownership of product areas.
• Strong backend skills with production experience in Python, FastAPI, and MongoDB or a comparable stack.
• Practical React and TypeScript experience, including independently shipping polished user interfaces.
• Experience taking ambiguous customer problems from scoping through delivery, including designing versioned APIs and data models.
• Background integrating AI features or agent-driven workflows; MCP-like tooling experience is a plus.
• Familiarity with B2B SaaS monetization, such as pricing, packaging, quoting, billing, or CPQ.
• High standards for correctness in financial logic and authorization to work in the United States without visa sponsorship.

COMPENSATION & BENEFITS

Salary range: $200,000 to $250,000 annually. Visa sponsorship is not available.

LOCATION

On-site in San Francisco, California, United States.