Principal AI Engineer - Strategy & AI Execution

Blackstone; San Francisco (CA); On-site; USD 215,000 - 250,000; Full time

Job summary

Blackstone Credit & Insurance – AI Engineer, Principal in San Francisco seeks a seasoned AI/ML architect to lead technical diligence and strategic AI initiatives across portfolio companies. The role demands hands-on building with a strong business sense and fluency in modern AI stacks.

The candidate will guide architecture, prototype rapid solutions, and oversee partner implementations while collaborating with senior leadership to shape AI-driven value for investors and clients.

Qualifications

• 5+ years building AI/ML systems in production environments.
• Fluency in foundation models, agent frameworks, RAG architectures, vector databases, and evaluation frameworks.
• Strong Python engineering skills; experience building APIs and AI-powered applications.
• Experience shipping AI-enabled products or features to real users.
• Familiarity with cloud infrastructure and production deployment (AWS, GCP, or Azure).
• Proficiency in rapidly assessing unfamiliar technical systems and form defensible architectural views.
• Strong written and verbal communication for senior audiences.

Responsibilities

• Assessment and Strategy — Assess portfolio companies’ technical reality (architecture, data assets, infrastructure, talent), translate findings into strategic insight, contribute to internal memos, and build rapid prototypes to validate proposed strategic moves.
• Tooling and Internal Infrastructure — Build and maintain internal tools that make the team more effective: research automation, assessment templates, tracking systems, and reusable components that accelerate work across the portfolio.
• Partner Evaluation and Execution Oversight — Lead technical diligence on implementation partners, monitor their delivery during active engagements, and participate in working sessions with portfolio company teams alongside the AI Executive.

Skills

AI/ML systems

Python engineering

APIs & AI-powered apps

Cloud infrastructure

Tools

AWS

GCP

Azure

Vector databases

RAG architectures

Foundation models

Agent frameworks

Job description

Blackstone Credit & Insurance – AI Engineer, Principal in San Francisco seeks a seasoned AI/ML architect to lead technical diligence and strategic AI initiatives across portfolio companies. The role demands hands-on building with a strong business sense and fluency in modern AI stacks.

The candidate will guide architecture, prototype rapid solutions, and oversee partner implementations while collaborating with senior leadership to shape AI-driven value for investors and clients.