Principal Fullstack Architect — AI-Driven Systems

FlightStory; Los Angeles (CA); On-site; USD 167,000 - 204,000; Full time

Job summary

Steven.com, Los Angeles, is seeking a Principal Engineer - Fullstack to lead architectural decisions for our most complex systems. You will own the ITO stack, define standards, and guide an engineering organization through AI-powered product evolution.

You will mentor engineers, partner with executives, and shape technical depth while collaborating with product teams to deliver scalable, production-ready platforms.

Qualifications

• Experience designing large-scale distributed systems in production.
• Proficiency in TypeScript, React, Node.js, Python, and cloud services.
• Strong background with AI/ML production systems and LLM-powered workflows.

Responsibilities

• Own the architecture of Steven.com’s most complex systems from design to production.
• Set engineering standards, patterns, and abstractions for the team.
• Architect the AI-native core with LLM-powered workflows and intelligent pipelines.
• Make high-stakes design decisions and mitigate systemic risk.
• Mentor senior and junior engineers and drive architectural excellence.
• Translate ambiguous bets into concrete technical plans with stakeholders.

Skills

TypeScript

React

Node.js

Python

Cloud (GCP/AWS)

Distributed systems design

AI/ML systems

Tools

LLM architectures

AI pipelines

Google Cloud

AWS

Job description

Steven.com, Los Angeles, is seeking a Principal Engineer - Fullstack to lead architectural decisions for our most complex systems. You will own the ITO stack, define standards, and guide an engineering organization through AI-powered product evolution.

You will mentor engineers, partner with executives, and shape technical depth while collaborating with product teams to deliver scalable, production-ready platforms.