# Frontend Engineer at Luca IQ

- Company: Luca IQ (YC S26)
- What the company does: API-first tax engine for CPA firms and developers. Backed by Y Combinator.
- Company website: https://lucaiq.com/
- Type: Startups (AI role)
- Level: Mid level
- Location: Chicago, IL
- Work setup: On-site
- Pay: $150K to $200K base salary per year (USD)
- Posted: 2026-09-17
- Apply by: 2026-11-01
- Apply: https://www.ycombinator.com/companies/luca-iq/jobs/Vx7fkzX-frontend-engineer
- Page: https://www.1752.vc/careers/jobs/luca-iq-frontend-engineer/

## About the role

The application layer: Build and evolve a complex React application for preparing returns, including thousands of taxpayer inputs, validation layers, state dependencies, and day-to-day workflow. Frontend architecture: Make a large, data-dense product fast, reliable, maintainable, and understandable as it grows.

## What they're looking for

- Deep experience building production React and TypeScript applications
- Experience building data-dense, form-heavy interfaces at scale, including large repeating field sets, complex validation, or state that remains reliable across hundreds of controls
- Strong frontend architecture judgment around client state, validation, performance, testing, and maintainability
- Careful reasoning about systems with extensive dependencies, edge cases, and state
- A bias toward shipping: you want to get real work in front of customers, learn, and iterate while treating accuracy, validation, and auditability as non-negotiable

Tags: Engineering