# Staff Engineer at Kastle

- Company: Kastle
- What the company does: One platform that keeps originations, fulfillment, and servicing moving 24/7, built for regulated work and connected to the systems you already use. Backed by Y Combinator.
- Company website: https://kastle.ai/
- Type: Startups (AI role)
- Level: Senior
- Location: San Francisco
- Work setup: On-site
- Pay: $250K to $320K base salary per year (USD)
- Posted: 2025-09-09
- Apply by: 2026-10-08
- Apply: https://jobs.ashbyhq.com/kastle/a65585b2-6a98-4c5c-8557-b7e0c3a4679e
- Page: https://www.1752.vc/careers/jobs/kastle-staff-engineer/

## About the role

Architect and own core systems that power real-time AI voice and compliance workflows Push performance boundaries, delivering sub-700ms latency leveraging event driven architecture and parallel processing

## What they're looking for

- Strong fundamentals in building high-performance, real-time backend systems (we work primarily in Python)
- Deep understanding of distributed systems, reliability, and fault tolerance
- Excellent database design and performance optimization skills
- A bias for ownership and an ability to figure things out in messy, high-velocity environments

Tags: Engineering