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Onshore

R&D tax credits · AI automation

Software Engineer II

New York · Onsite$155k–$170k/yrPosted 6 days ago
Software engineeringMid-levelFull Time
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Opens the source posting on ycombinator.com

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About the role

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Software Engineer II — Onshore

Onshore builds AI-native tax software. We automate the work that used to take CPAs weeks — R&D credits, 179D, cost seg, and more — using agents that do the analysis and humans who review it.

We're hiring a Software Engineer II to build product end-to-end across our stack.

What you'll do

  • Ship full-stack features across our Vite + React frontend (shadcn, Tailwind) and SST backend (Bun, Lambda, AWS).

  • Build AI-powered data pipelines that ingest, extract, and transform client data at scale.

  • Own products from spec to production — design, build, deploy, iterate.

  • Work directly with founders, tax experts, and customers.

  • You should have

  • 2+ years building production software, ideally full-stack.

  • Strong TypeScript and React. Comfort in a serverless AWS environment is a plus.

  • A bias toward shipping and an eye for craft.

Compensation

$155K–$170K base

Up to $15K/year in equity

Full benefits

NYC, in-office.