Founding Engineer
Abacus Intelligence — AI agents for accounting firms · 5 employees · $6.6M seed raised
About the role
Abacus Intelligence is building AI agents that automate tax preparation and other back-office workflows for the largest accounting firms in the US. Its core engine combines OCR and LLMs. Founded in 2025, Abacus is profitable, passed seven figures in revenue in under a year and is live in 11 of the top 100 accounting firms. It has raised a $6.6M seed round from Menlo Ventures and Pear VC.
This is a Founding Engineer seat: a high-bar generalist who makes sharp backend decisions and wants to help scale a product customers already pay for. The work is mostly backend with some frontend, and you'll make architecture decisions on your own, working closely with the CTO and the Head of Engineering. The team is second-time founders and brothers from Stanford who act as engineers, product people and salespeople.
US-based, ideally on Pacific Time hours (the team works across Pacific and Eastern time).
What you will own
- Build the core tax-automation platform as a generalist: mostly backend, with some frontend
- Help ship the next major version of the product
- Make backend architecture decisions on your own, working closely with the CTO and Head of Engineering
- Build the LLM and OCR agent pipelines and turn what firms tell the team into product
- Work on new products in tax and in other accounting workflows, such as audit
Requirements
We interview honestly against this list — if you meet most of the “Must have” rows, apply.
Compensation
Role details
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