Founding Engineer

About the Company

Abacus is reinventing how accounting firms operate by building AI agents that automate the tedious, repetitive workflows that teams currently face. Our core engine combines advanced OCR and LLMs to deliver truly intelligent back-office automation.

Responsibilities

• Lead development of our ML-powered document extraction engine
• Architect backend systems with performance and scalability in mind
• Build and deploy new automation features for tax firms
• Collaborate closely with the founders on product and user needs
• Help define our engineering culture and technical roadmap
• Improve and scale our ML extraction engine using LLMs and OCR
• Own backend architecture and infrastructure decisions
• Build and ship greenfield features to expand the workflows we automate

Requirements

• 1–5 years of experience, ideally in high-ownership or early-stage environments
• Strong backend development skills, particularly in Python
• Proven 0→1 builder (side projects, startup experience, or both)
• Willingness to work from our SF office, 5 days/week
• Willingness to complete a technical take-home exercise

Preferred Qualifications

• Experience with LLMs, OCR, or data extraction systems
• Exposure to AI infrastructure or evaluation frameworks

Benefits

• Significant equity
• Top-tier health insurance
• Daily lunches
• In-office barista