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SEON is a fraud prevention and AML compliance platform serving thousands of companies globally, including Revolut, Wise, and Bilt. The company has helped clients reduce fraud by 95% and achieve 32x ROI.
You will take technical ownership of SEON's global website and build a faster, more scalable and reliable web platform. This is a hands-on engineering role with significant autonomy and ownership. You'll work closely with the Website Manager, Marketing, Design and SEO teams to turn business requirements into robust, reusable solutions that enable campaigns, experimentation and scaling without unnecessary developer dependencies.
Key responsibilities include:
- Build and maintain custom Gutenberg blocks, patterns and page templates to enable content scaling without developer involvement
- Own the custom SEON theme and plugin codebase: maintenance, refactoring, documentation and technical debt paydown
- Own the build pipeline and releases: Git workflow, staging, deployments to WP Engine, and rollback procedures
- Own site security: hardening, vulnerability monitoring, plugin/theme updates, and incident response
- Own site performance: Core Web Vitals, edge and object caching, and page speed optimization
- Plan and deliver platform upgrades (WordPress core, PHP, MySQL) with full compatibility testing across the multisite network
- Ensure all changes work across three locales (EN, ES, PT-BR), including multilingual and hreflang behavior
- Maintain site integrations: forms, CRM, analytics, tag management, and cookie consent
- Implement technical SEO and accessibility (WCAG 2.2 AA compliance) with the SEO team
- Set and uphold engineering standards: code review, coding conventions, monitoring, backups and recovery testing
- Scope and estimate requests from marketing and design; provide technical direction to agencies or freelancers
- Run cross-browser and cross-device testing before every release using tools like BrowserStack
You'll be proactive in identifying opportunities to improve the platform, challenge technical decisions when necessary, and take pride in building a website that performs well both visually and behind the scenes.
REQUIREMENTS:
- 5+ years of professional WordPress development experience, with extensive hands-on experience developing and maintaining custom, production-grade WordPress websites; experience owning complex or multisite implementations preferred
- Strong PHP and WordPress knowledge: advanced PHP skills, deep understanding of WordPress internals, hooks, APIs, custom themes, plugins, database structures, custom post types and WP-CLI
- Ability to confidently troubleshoot and extend WordPress without relying solely on third-party plugins
- Modern front-end and Gutenberg expertise: strong JavaScript (ES6+), React, HTML5 and CSS/SCSS skills; proven experience building custom Gutenberg blocks, reusable components and responsive, accessible templates
- Development workflow and testing experience: 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 change release practices
- Performance, security and infrastructure knowledge: Core Web Vitals, caching, CDNs, web security, vulnerability management, monitoring and fundamentals of 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, solutions-focused approach with ability to independently investigate problems, prioritize technical improvements, translate business requirements into maintainable solutions and collaborate effectively with Marketing, Design and other stakeholders
NICE-TO-HAVE:
- Production website management 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 (especially where lead attribution is critical)
- Experience implementing A/B tests, personalization, conversion-focused templates or experimentation platforms (VWO, GrowthBook)
- Familiarity with MultilingualPress or equivalent multilingual solutions within WordPress multisite
- Previous experience maintaining high-performing B2B SaaS or enterprise marketing websites where technical reliability, SEO, analytics accuracy and lead generation are critical
- Familiarity with DNS, CDNs, WAFs, Cloudflare, server logs, security scanning, API troubleshooting and third-party script governance
