Senior Full Stack Web Developer

We’re seeking a Senior Full Stack Developer with deep expertise in Shopify app development and strong backend engineering experience. This role is centered around building scalable Shopify applications, developing high performance PHP systems, and managing production server environments that support multi store operations and complex API integrations.

Key Responsibilities

Design, develop, and maintain custom Shopify apps
Build advanced integrations using Shopify REST and GraphQL APIs
Develop and maintain backend systems using PHP and MySQL
Architect scalable solutions that support multiple Shopify stores
Integrate and maintain payment processing APIs such as Stripe and PayPal
Handle Shopify authentication, webhooks, billing logic, and background processing
Optimize database structure and query performance in MySQL
Manage and optimize PHP server environments for speed, stability, and security
Troubleshoot production issues across Shopify apps, servers, and APIs
Collaborate with product managers, designers, and developers in a remote team environment

Required Skills and Experience

5+ years of full stack development experience
Proven experience building and scaling Shopify apps
Strong hands on expertise with Shopify REST and GraphQL APIs
Deep understanding of Shopify OAuth, webhooks, billing APIs, and app distribution
Advanced proficiency in PHP and MySQL
Strong experience managing Linux based PHP server environments
Solid understanding of database performance optimization
Strong JavaScript skills for frontend logic and app interfaces
Experience integrating payment processing APIs
Comfortable working on adult related projects

Job Type: Full-time

Pay: $80,000.00 - $147,000.00 per year

Benefits:

• Flexible schedule
• Paid time off

Location:

• San Marcos, CA 92069 (Required)

Work Location: In person