Principal AI Systems Architect

Job overview

The Principal AI Systems Architect role is onsite in Los Angeles, CA, with a base salary of $204,000–$216,000 per year plus early-stage equity. Compensation also includes health and wellness benefits. Sapience AI builds a collective intelligence platform that makes expertise within professional communities searchable and actionable. This senior individual-contributor role owns architectural coherence across the platform, including its knowledge graph, COGENT architecture, models, serving layer, and product experience. The architect sets cross-cutting technical direction, guides major design decisions, and helps teams build a scalable, reliable, and trustworthy production system.

What you'll do

• Set and maintain coherent architecture across the platform’s knowledge graph, COGENT, models, serving, and product surface
• make strategic architecture decisions
• design for scale, reliability, security, governance, and trust
• establish technical standards and patterns
• align teams on shared architecture and interfaces
• evaluate and integrate frontier advances
• mentor senior engineers
• partner across engineering teams and with the CTO.

What we're looking for

Skills & competencies

principal ai systems architect

ai platform architecture

distributed systems

machine learning infrastructure

knowledge graphs

llm systems

retrieval systems

cloud platforms

security and governance

los angeles ca

sapience ai

$204k–$216k/year

Work arrangement

• Weekend coverage required

Benefits & perks

• Health and wellness benefits
• early-stage equity.

Why this role

Most senior individual-contributor architecture role; leads through influence rather than people management and remains hands-on.

About the employer

Sapience AI Corporation is hiring for this role. Industry: Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services. Sector: 51.