Senior WordPress Backend Engineer: Plugins & APIs

Flatiron Software; México; On-site; MXN 450,000 - 650,000; Full time

Benefits offered by this job

Yearly Office Allowance Budget

Macbook Purchase Support

Job summary

Flatiron Software is seeking a highly skilled WordPress Developer to join its global engineering team. You will focus on backend development, building and optimizing custom WordPress plugins, APIs, and integrations for large-scale, high-performance websites.

The ideal candidate has deep knowledge of WordPress internals, enterprise experience, and a strong understanding of scalable, maintainable code. 5+ years of WP development and English communication are required.

Qualifications

• 5+ years of professional WordPress development experience (backend & plugin work).
• Strong knowledge of WordPress hooks (actions & filters) and optimization strategies.
• Proficient with ACF, CPT UI, and Gutenberg.
• Solid understanding of WordPress REST API, webhooks, and API integrations.
• Experience with Git and CI/CD pipelines.
• Experience with performance optimization, caching, and scalable WP architectures.
• Excellent written and spoken English for international clients.

Responsibilities

• Design and develop custom WordPress plugins and themes from scratch.
• Implement ACF, custom post types, and taxonomies for data management.
• Optimize database queries and overall site performance.
• Integrate WordPress with third‑party APIs and automation tools.
• Develop cron jobs, background tasks, and data synchronization scripts.
• Build Gutenberg blocks or React-based admin components as needed.
• Ensure performance, accessibility, and SEO standards.
• Collaborate with frontend, DevOps, QA, and design teams in Agile sprints.
• Write clean, well-documented, unit-tested code following WP standards.

Skills

WP backend development

PHP

MySQL

APIs & integrations

OOP PHP

Agile

English communication

Tools

ACF

CPT UI

Gutenberg

WordPress REST API

Git

CI/CD

Job description

Flatiron Software is seeking a highly skilled WordPress Developer to join its global engineering team. You will focus on backend development, building and optimizing custom WordPress plugins, APIs, and integrations for large-scale, high-performance websites.

The ideal candidate has deep knowledge of WordPress internals, enterprise experience, and a strong understanding of scalable, maintainable code. 5+ years of WP development and English communication are required.