Founding Applied AI Engineer - LLMs, Voice, Equity & Relocation

Kastle; San Francisco (CA); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Competitive salary

Early-stage equity

Relocation support

Job summary

Kastle, based in San Francisco, is searching for a Founding Applied AI Engineer to shape its AI platform for consumer lending. You will integrate AI models, optimize performance, and ensure compliance with regulations. Your efforts will directly impact top mortgage lenders, enabling rapid deployment and real-world impact. This role demands a passion for applied AI and a collaborative spirit. Join a dynamic team of industry veterans and take an active role in building the future of lending with AI.

Qualifications

• 2+ years building and deploying ML/AI systems in production environments.
• Strong proficiency in Python and deep learning frameworks.
• Experience with LLM orchestration frameworks.
• Track record of shipping AI products that real users depend on.
• Strong product mindset and ability to translate business requirements into AI solutions.

Responsibilities

• Fine-tune and deploy LLMs for real-time voice-based borrower interactions.
• Design and iterate on prompt strategies to optimize AI performance and compliance.
• Build high quality evals to benchmark AI agent performance.
• Train and implement domain-specific AI models for consumer lending.
• Ensure AI solutions meet regulatory standards and scale efficiently.
• Build robust AI-driven workflows integrating with loan servicing platforms.
• Monitor performance metrics and continuously improve agent quality.

Skills

Building and deploying ML/AI systems

Proficiency in Python

Deep learning frameworks (TensorFlow, PyTorch)

LLM orchestration frameworks (LangChain, LlamaIndex)

Product mindset

Excellent communication skills

Job description

Kastle, based in San Francisco, is searching for a Founding Applied AI Engineer to shape its AI platform for consumer lending. You will integrate AI models, optimize performance, and ensure compliance with regulations. Your efforts will directly impact top mortgage lenders, enabling rapid deployment and real-world impact. This role demands a passion for applied AI and a collaborative spirit. Join a dynamic team of industry veterans and take an active role in building the future of lending with AI.