Senior Principal Architect (AI Platform)

Location: Pleasanton, California, United States; Flex work with at least 50% of each quarter spent in the office or in the field with customers, prospects, and partners.

Base salary: $242,400–$363,600 USD annually for the primary location; additional US locations: $205,200–$363,600 USD annually. The role may also include a bonus or commission and annual refresh stock grants.

Company

hirify.global is a Fortune 500 company and AI platform for managing people, money, and agents.

What you will do

• Define the long-term architecture vision, target state, and roadmap for the AI Platform and its agent ecosystem.
• Own the end-to-end architecture of runtimes, orchestration, routing, model management, and data infrastructure.
• Set patterns and standards for highly available, large-scale distributed systems, including reliability, performance, scalability, and fault tolerance.
• Define model integration, serving, evaluation, and optimization, balancing quality, performance, cost, and rapid adoption of new models.
• Design AWS and GCP multi-cloud architecture, managed AI service usage, and cost-effective infrastructure patterns.
• Establish architecture governance, align pillars and hirify.global architects, mentor senior technical staff, and advise executives and external communities.

Requirements

• Bachelor's degree in Computer Science or a related discipline.
• 15+ years of software engineering experience, including significant time in senior architecture roles.
• 8+ years defining the architecture of large-scale distributed systems running in production.
• 8+ years running architecture practices such as reference architectures, architecture decision records, and architecture review boards.
• 5+ years architecting AI or machine learning platforms supporting production workloads at enterprise scale.
• Strong background in model engineering, including model selection, evaluation, serving, and optimization.
• Deep familiarity with large language models and production patterns such as retrieval-augmented generation and agent orchestration.
• Strong AWS and GCP architecture experience, including core infrastructure and managed AI services; experience architecting container and orchestration platforms such as Kubernetes at scale.
• Working knowledge of AI governance, security, privacy, compliance, responsible AI, AI regulation, and data sovereignty requirements such as the EU AI Act.
• Ability to set architectural direction, influence multiple teams without direct authority, communicate complex architecture to executives and engineers, and mentor architects and senior engineers.
• Sound judgment in balancing innovation with platform stability, cost, and risk.

Nice to have

• Experience with agent frameworks and interaction protocols such as LangGraph, MCP, and A2A.
• Recognized technical reputation through publications, patents, open-source contributions, or industry speaking.

Culture & Benefits

• Work in a culture focused on integrity, empathy, collaboration, and inclusion.
• Flex Work combines in-person time with remote work and allows flexible scheduling around business, team, and personal needs.
• Remote home-office roles may also gather in company offices for important events.
• Potential eligibility for the hirify.global Bonus Plan or role-specific commission or bonus and annual refresh stock grants.
• Reasonable accommodations are available during the application process.