Numos AI, inc.

Senior Full-Stack Engineer at Numos AI, inc. (San Francisco, CA)

Numos AI, inc.· San Francisco, CA·

Role details

Work type
Onsite
Employment
Full-Time
Level
Senior

Job description

We’re looking for a senior full stack engineer to help build the core systems behind AI teammates for finance. You’ll design and ship infrastructure that allows agents to initiate, execute, and complete real workflows across messy enterprise environments. This is not surface-level AI. You’ll be working on systems that combine reasoning, context, and action in production.

What you’ll do

  • Design and build end-to-end systems that power intelligent, outcome-driven workflows
  • Own features across the stack, from backend services to user-facing interfaces
  • Integrate AI models into reliable, auditable production systems
  • Work closely with product and customers to solve real finance and accounting problems
  • Build for scale, security, and enterprise-grade reliability from day one

What we’re looking for

  • 5+ years of full stack development experience
  • Strong proficiency in Python
  • Experience with modern cloud platforms (AWS, Azure, or GCP)
  • Hands-on experience integrating AI/ML systems into applications
  • Background in enterprise software architecture and distributed systems

Why Numos

You’ll be building systems that don’t just assist work, but actually get it done. The problems are complex, the expectations are high, and the impact is real.

Why work at Numos AI, inc.

  • Culture & Values: The company emphasizes "Absolute Precision," "Systems Over Symptoms," and "Elegance in Complexity"—appealing to engineers and systems thinkers who enjoy solving deep, foundational problems. numos.ai
  • Work Model: On-site (San Francisco Bay Area) for most roles, with some positions listed as "In-Office or Remote" across 7 locations. builtin.com
  • Team Composition: A small, focused team of ~10 employees, with 62% in technical roles—offering high impact and ownership for early hires. linkedin.com
  • Backing & Trajectory: Backed by top-tier VC General Catalyst and respected industry angels, providing strong validation and resources for growth.
  • Mission-Driven: The opportunity to define how enterprise finance teams work with AI teammates, shifting them from "tactical operators to strategic orchestrators." numos.ai

Application questions