Principal Architect

Job title: Principal Architect

Location: Pleasanton, California, United States (Hybrid)

Duration: Full time

Summary:

We re hiring an exceptional Principal Architect to lead the ground-up design and build of our next-generation, multi-tenant SaaS platform for AI-powered financial intelligence and workflow automation. This is a true greenfield opportunity: architect, build, and launch a production-ready platform.

Responsibilities:

• Own platform architecture end-to-end, including tech stack selection, multi-tenant design, auth systems, data architecture, and service topology.
• Lead the intelligence layer: LangGraph agent system, LLM integration strategy, and contextual intelligence design.
• Contribute high-impact code, drive engineering excellence, and accelerate execution velocity.
• Ensure infrastructure, security, reliability, and DevOps readiness.

Requirements:

• 12 years of software engineering experience, including 5 years in architect roles
• Proven success in architecting and launching greenfield multi-tenant SaaS platforms
• Product development experience with aggressive timelines
• Expertise across frontend, backend, data, and cloud infrastructure (AWS preferred)
• Strong experience with EKS/ECS, PostgreSQL, enterprise authentication, and high-performance systems
• AI/LLM architecture experience: LangGraph/LangChain, agent-based systems, OpenAI/Anthropic integrations
• Strong technical leadership and communication skills

Good to have:

Financial services experience, startup/rapid growth background, security/compliance expertise, and cost optimization skills.