Building AI agents that automate B2B accounts receivable at scale.

Staff Engineer

San FranciscoOn-site$275K - $345K8+ years
We’re rewriting how finance teams handle incoming payments — taking a manual, error-prone back-office function and turning it into something autonomous. As a Staff Engineer, you’ll shape the core platform that thousands of enterprises rely on to reconcile millions of transactions, designing systems that blend language models with traditional financial logic. This is a high-ownership role where you’ll move across the stack, from real-time data pipelines to the React interfaces that operators trust daily. You’ll set technical direction for a small, sharp team that shipped a working product within months of founding and now needs the architecture to match its ambitions.

What they're looking for

  • 8+ years building production full-stack systems, with deep fluency in TypeScript, React, and Node.js
  • Experience designing and scaling relational data models (we use MySQL) and REST or GraphQL APIs that serve high-throughput business logic
  • Track record of technical leadership in small or early-stage teams — mentoring engineers, driving architecture decisions, and owning delivery end-to-end
  • Comfort working on-site in San Francisco and collaborating closely with product and design in a tight feedback loop
  • Familiarity with AI/LLM application patterns, or a demonstrated ability to ramp quickly on emerging technology in a production context

Tech stack

TypeScriptNext.jsMySQLReactNodeJS

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This role is one we're recruiting for on behalf of a client company; the client's identity is kept confidential at this stage. A Fluency recruiter will follow up with details.