# Senior Fullstack Software Engineer at Magnetic

- Company: Magnetic (YC S25)
- What the company does: AI Tax Preparer for CPA firms. Backed by Y Combinator.
- Company website: https://www.magnetictax.com
- Type: Startups (AI role)
- Level: Senior
- Location: San Francisco, CA, US
- Work setup: On-site
- Pay: $150K to $250K base salary per year (USD)
- Posted: 2025-07-05
- Apply by: 2026-10-08
- Apply: https://www.ycombinator.com/companies/magnetic/jobs/77FvOwO-senior-fullstack-software-engineer
- Page: https://www.1752.vc/careers/jobs/magnetic-senior-fullstack-software-engineer/

## About the role

Magnetic is hiring a skilled Software Engineer to join our core development team. You’ll be responsible for building and maintaining the backend systems that power our AI-driven tax prep platform - including model pipelines, data extraction logic, and integrations with tax software, as well as improving our client-facing touchpoints. You’ll work closely with sales, product, and tax operations to ship features that directly improve speed, accuracy, and reliability for our customers.

## What they're looking for

- Vision-Language pipelines that process and extract structured data from unstructured client tax documents, relying on AI models, deterministic rules, and human-in-the-loop corrections
- Systems to test and improve extraction accuracy on complex tax forms, handwritten notes, brokerage statements, and K-1s
- Distributed cloud infrastructure to process thousands of client files concurrently across multiple firms and tax seasons
- Integrations with major tax software systems, file portals, and document management tools
- Features to improve our own client-facing surface area (intake, output artifacts, review process)

Tags: Engineering