Founding Engineer - Real-Time AI Backend for Banks

Kastle; San Francisco (CA); On-site; USD 120,000 - 150,000; Full time

Benefits offered by this job

Competitive salary

Meaningful early-stage equity

Exposure to customer feedback

Work with a world-class founding team

Job summary

Kastle is seeking a talented engineer to architect and own core systems for AI voice operations in San Francisco. In this role, you will have substantial ownership over your work and will tackle challenges to build high-performance, real-time systems primarily in Python. You will join a mission-driven team backed by top investors, pushing boundaries in a dynamic environment with meaningful early-stage equity. Join us to redefine consumer lending interactions.

Qualifications

• Strong fundamentals in building high-performance, real-time backend systems.
• Deep understanding of distributed systems, reliability, and fault tolerance.
• Excellent database design and performance optimization skills.
• Ability to operate in messy, high-velocity environments.

Responsibilities

• Architect and own core systems that power real-time AI voice and compliance workflows.
• Push performance boundaries for sub-700ms latency.
• Deploy and scale resilient systems using Kubernetes.
• Build a self-improving AI system.
• Ship fast from design to live production.

Skills

High-performance backend systems

Distributed systems

Database design and performance optimization

Ownership and problem-solving in dynamic environments

Tools

Python

Kubernetes

Job description

Kastle is seeking a talented engineer to architect and own core systems for AI voice operations in San Francisco. In this role, you will have substantial ownership over your work and will tackle challenges to build high-performance, real-time systems primarily in Python. You will join a mission-driven team backed by top investors, pushing boundaries in a dynamic environment with meaningful early-stage equity. Join us to redefine consumer lending interactions.