Senior WordPress Developer

SEON

. Develop and maintain custom Gutenberg blocks, patterns and page templates .

Posted 10/21/2026full-timeRemote • Texas • United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in WordPress engineering, including advanced PHP, JavaScript, and custom theme development. Proficient in managing site performance, security, and implementing technical SEO across multilingual environments.

Highest-signal resume keywords

WordPress Engineering ExperienceAdvanced PHP KnowledgeStrong JavaScript SkillsCustom Gutenberg Block DevelopmentSite Security Management

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

PHPJavaScriptWordPress InternalsHTML5CSS/SCSSGutenberg Block DevelopmentDatabase StructuresTechnical SEOAccessibility ComplianceMultilingual Website Management

Soft Skills

Problem-SolvingCollaborationProactive InvestigationStakeholder CommunicationTechnical Direction

Tools & Technologies

GitWP EngineGA4Google Tag ManagerCloudflareCI/CD PipelinesVulnerability MonitoringCookie Consent PlatformsA/B Testing ToolsMultilingualPress

Industry Keywords

Core Web VitalsCDNWeb SecurityIncident ResponseTechnical Debt ReductionCompatibility TestingResponsive DesignVisual Regression TestingStructured Deployment PracticesHreflang Behavior

Tech Stack

Tools & technologies

DNSJavaScriptMySQLPHPReactSCSSWordPress

About the role

Key responsibilities & impact

Develop and maintain custom Gutenberg blocks, patterns and page templates
Own the custom SEON theme and plugin codebase, including maintenance, refactoring, documentation and technical-debt reduction
Own the build pipeline and releases, including Git workflow, staging, WP Engine deployments and rollbacks
Manage site security, hardening, vulnerability monitoring, updates and incident response
Manage site performance, including Core Web Vitals, edge and object caching, and page speed
Plan and deliver WordPress core, PHP and MySQL upgrades with compatibility testing across the multisite network
Ensure changes work across EN, ES and PT-BR locales, including multilingual and hreflang behavior
Maintain forms, CRM, analytics, tag-management and cookie-consent integrations
Implement technical SEO and accessibility improvements, including schema, crawlability, indexation and WCAG 2.2 AA compliance
Establish engineering standards for code review, conventions, monitoring, backups and recovery testing
Scope and estimate marketing and design requests and provide technical direction to agencies or freelancers
Conduct cross-browser, cross-device and visual-regression testing before releases
Collaborate with the Website Manager, Marketing, Design and SEO teams to build a scalable, reliable website platform

Requirements

What you’ll need

Strong WordPress engineering experience, ideally with 5+ years in a professional development environment and experience owning complex or multisite implementations
Advanced PHP and WordPress knowledge, including WordPress internals, hooks, APIs, custom themes, plugins, database structures, custom post types and WP-CLI
Ability to troubleshoot and extend WordPress without relying on third-party plugins for everything
Strong JavaScript (ES6+), React, HTML5 and CSS/SCSS skills
Experience building custom Gutenberg blocks, reusable components and responsive, accessible templates
Experience with Git, code review, staging environments, automated builds, CI/CD pipelines and structured deployment practices
Understanding of unit, integration and end-to-end testing and safe release practices
Knowledge of Core Web Vitals, caching, CDNs, web security, vulnerability management, monitoring, hosting and maintaining business-critical websites
Experience with WordPress multisite, multilingual websites or similarly complex architectures
Understanding of technical SEO, accessibility, compatibility testing and safe platform upgrades
Proactive ability to investigate problems, prioritize improvements, translate business requirements into maintainable solutions and collaborate with stakeholders
Experience managing production websites on WP Engine, including staging, environment management, caching, Global Edge Security and deployment workflows
Experience with HubSpot, GA4, Google Tag Manager, Consent Mode v2, cookie consent platforms and complex form integrations
Experience implementing A/B tests, personalization, conversion-focused templates or VWO/GrowthBook
Familiarity with MultilingualPress or equivalent multilingual solutions
Familiarity with DNS, CDNs, WAFs, Cloudflare, server logs, security scanning, API troubleshooting and third-party script governance
Must be legally authorized to work in the role's country without employer sponsorship