Principal Staff Engineer - Web Platform

Job Overview

Planet Art is seeking a Principal Staff Engineer‑Web Platform to serve as a senior technical leader within our engineering organization and a key partner to the VP of Engineering. This position focuses on building, operating, and scaling high‑traffic e‑commerce web platforms in a fast‑moving production environment.

Reporting directly to the VP of Engineering, the engineer will play a critical role in architecting, developing, troubleshooting, and maintaining our LAMP‑based web applications and AWS infrastructure. The ideal candidate is equally comfortable writing production code, diagnosing complex site‑reliability issues, managing cloud infrastructure, and leading technical problem‑solving during high‑severity incidents.

This role requires strong operational judgment and the ability to independently own production challenges across application, database, infrastructure, and deployment layers. It also involves collaboration with the China‑based development organization, serving as a senior U.S.‑based technical lead responsible for cross‑team coordination, code quality, architectural guidance, and production stability.

PLEASE NOTE:

Candidates must be local to or willing to relocate to the Calabasas area as we operate on a hybrid work model (3 days onsite, 2 remote).

• Full‑Stack Platform Engineering: Design, develop, and maintain scalable features and services across our LAMP‑based e‑commerce platform, focusing on reliability, performance, maintainability, and operational excellence.
• Production Operations & Incident Response: Act as a senior technical escalation point for complex production incidents, troubleshoot issues across application, infrastructure, networking, database, CDN, and deployment layers, lead root‑cause analysis, and drive long‑term stability improvements.
• AWS Infrastructure Ownership: Manage and optimize AWS infrastructure, including deployment architecture, scaling strategies, observability, security, disaster recovery, and cost efficiency. Partner closely with Dev Ops and engineering leadership on operational best practices.
• High‑Scale Performance Optimization: Monitor and improve application, database, and infrastructure performance for high‑traffic consumer web applications. Identify bottlenecks and implement scalable solutions to improve uptime, latency, and system resilience.
• Cross‑Functional Technical Leadership: Partner with Product, Design, Operations, and Customer Experience teams to translate business requirements into scalable technical solutions and ensure successful project execution.
• Global Engineering
  
  Collaboration:
  
  Work closely with the China‑based engineering team to coordinate development efforts, conduct code reviews, align on architectural direction, manage releases, and maintain strong engineering communication across time zones.
• Code Quality & Engineering Standards: Champion high engineering standards through code reviews, testing strategies, documentation, observability, and operational best practices. Drive continuous improvement in system reliability and development processes.
• Technical Mentorship & Leadership: Provide technical mentorship and architectural guidance across the engineering organization. Influence technical direction through hands‑on leadership, strong execution, and collaborative problem‑solving.

• Senior‑Level Full‑Stack Engineering
  
  Experience:
  
  7+ years of professional experience building and operating large‑scale web applications, including substantial hands‑on experience with the LAMP stack (Linux, Apache, MySQL, PHP).
• Strong AWS & Cloud Operations Expertise: Deep hands‑on experience with AWS services and production cloud environments, including EC2, RDS, S3, Lambda, Cloud Watch, networking, scaling, monitoring, and infrastructure troubleshooting.
• Ecommerce & High‑Traffic Website
  
  Experience:
  
  Experience supporting high‑volume consumer‑facing websites or e‑commerce platforms, with a strong understanding of scalability, uptime, performance optimization, and operational reliability.
• Production Troubleshooting Expertise: Demonstrated ability to diagnose and resolve complex production issues under pressure,…