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Founding Engineer at Kastle | San Francisco

KastleSan Francisco
On-site Full-time

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Experience Level

Experience

Qualifications

What You BringSolid foundation in developing high-performance, real-time backend systems, preferably in Python. In-depth knowledge of distributed systems, including reliability and fault tolerance. Exceptional database design skills and performance optimization experience. A proactive mindset with a strong sense of ownership, capable of navigating complex, fast-paced environments.

About the job

About Kastle

Kastle is revolutionizing the AI landscape in consumer lending. We collaborate with some of the nation’s leading mortgage lenders to enhance their contact centers and compliance operations utilizing cutting-edge AI voice agents.

Supported by prominent investors including Y Combinator and Commerce Ventures, as well as seasoned professionals from Snapdocs, Google, and WePay, we are transforming the way millions of borrowers engage with financial institutions and how lenders operate efficiently at scale.

This is a unique opportunity to join a pioneering team at the forefront of innovation, working with large-scale clients and real-world applications.

Your Role

  • Design and manage core systems that facilitate real-time AI voice and compliance workflows.
  • Enhance performance metrics, achieving sub-700ms latency through event-driven architecture and parallel processing techniques.
  • Deploy, maintain, and scale robust systems using Kubernetes and distributed subsystems.
  • Develop a self-evolving AI system that learns from each customer interaction and integrates human feedback.
  • Deliver rapid development from initial design concepts to live production within financial environments.

Why Join Kastle?

  • Impactful Work: Your contributions will directly influence borrower interactions at scale.
  • Entrepreneurial Spirit: Enjoy significant ownership and autonomy over product, technology, and company culture.
  • Rapid Learning: Gain daily insights from customer interactions and feedback loops.
  • Attractive Compensation: Competitive salary, meaningful early-stage equity, and an opportunity to shape a category-defining company.
  • Outstanding Team: Collaborate with a world-class founding team from companies like Verkada, NVIDIA, Apple, and Redfin.

About Kastle

Kastle is at the forefront of creating innovative AI solutions for the financial sector, particularly in consumer lending. By partnering with top mortgage lenders, we aim to enhance operational efficiency and customer engagement through advanced technology. Our team is comprised of industry veterans who are dedicated to transforming the way financial institutions operate.

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