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.
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
More about this role
Kastle is building the AI employee for banks. We work with some of America's financial institutions, helping them scale their contact center and compliance operations using autonomous AI Agents that process payments, originate loans, and help customers get a world class experience during the biggest financial decisions of their lives. We've processed over $2 billion in transactions and are backed by Insight Partners and Y Combinator. If you are interested in building AI that is applied in the real world where precision, reliability, and performance matter and redefine access to credit across the world, apply below.
We just raised a $24M Series A and are growing fast!
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
Deploy, operate, scale, resilient systems using Kubernetes and distributed sub-systems
Build a self-improving AI system that improves with every customer interaction and human feedback
Ship fast, ship right from whiteboard design to live production in bank environments.
Strong fundamentals in building...
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