About the role
About Kastle
Kastle is building the AI employee for consumer lending. We work with some of America's largest banks and mortgage lenders, 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 $1 billion in transactions and are backed by Y Combinator and Commerce Ventures. 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.
What You’ll Do
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Architect and own core systems that power real-time AI voice and compliance workflows
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Push performance boundaries, delivering sub-700ms latency leveraging event driven architecture and parallel processing
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Deploy, operate, scale, resilient systems using Kubernetes and distributed sub-systems
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Build a self-improving AI system that improves with every customer interaction and human feedback
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Ship fast, ship right from whiteboard design to live production in bank environments.
What You Bring
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Strong fundamentals in building high-performance, real-time backend systems (we work primarily in Python).
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Deep understanding of distributed systems, reliability, and fault tolerance.
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Excellent database design and performance optimization skills.
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A bias for ownership and an ability to figure things out in messy, high-velocity environments
