Founding Engineer - Remote

Overview

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. We're already working with large enterprise clients, generating meaningful revenue, and backed by top-tier investors. We’ve accomplished all of this as a team of two, and we’re excited to grow our team. If you want to shape the future of AI-powered operations and own meaningful technical work from day one, this is the place.

In Short

• 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
• 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
• 1–5 years of experience, ideally in high-ownership or early-stage environments
• Strong backend development skills, particularly in Python

Requirements

• 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 as part of the process
• Experience with LLMs, OCR, or data extraction systems (Nice-to-have)
• Exposure to AI infrastructure or evaluation frameworks (Nice-to-have)

Benefits

• No ceiling on ownership or growth
• Significant equity and high-leverage role at a fast-growing startup
• Top-tier health insurance, daily lunches, and an in-office barista
• You’ll help define the trajectory of the product, team, and company!