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Albert Van Der SluisAV

Albert Van Der Sluis

Senior PHP & Laravel Developer | WordPress Specialist

€350/day
Lima, PE
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Albert

With over 15 years of experience in PHP development, I help companies build fast, secure, and maintainable web applications. My specializations include Laravel, WordPress, and system architecture.

I have a proven track record: at De Streekboer, I reduced the processing time of logistics processes by 70% by building a custom Yii2 system. At EveryOffice, I led the complete migration to Laravel and PHP 8.x, including Dockerization of the production environment. And at MKB, I improved Core Web Vitals scores by 40% by optimizing WordPress installations and eliminating reliance on third-party plugins.

I work fully remotely, am accustomed to asynchronous collaboration, and deliver clean, documented code. Whether it's a complex Laravel project, custom WordPress development, API integrations, or refactoring technical debt, I approach it with a results-oriented mindset.

Available for both short-term assignments and long-term collaborations.
  • Dutch

    Native or bilingual

  • English

    Fluent

  • Spanish

    Basic

Remote only
Primarily works remotely

Experience

  • Leeuwarden
    PHP Backend Developer
    January 2023 - Today (3 years and 5 months)
    Developing scalable backends using Laravel 12, implementing modern PHP features to ensure high performance and maintainability. Developed high-performance, proprietary PHP frameworks for WordPress to eliminate dependency on third-party page builders, resulting in a 40% increase in Core Web Vitals scores and enhanced security posture. Audited and optimized legacy WordPress sites, improving Core Web Vitals scores by reducing database bloat and optimizing asset loading. Architected custom middleware/API integrations in PHP to synchronize WordPress data with enterprise-level CRM and ERP systems, automating complex lead generation pipelines.
    MySQL PHP Laravel WordPress JavaScript
  • EveryOffice - Meppel
    Senior PHP Backend Engineer
    June 2021 - June 2022 (1 year)
    Engineering Focus: Spearheaded the architectural migration of a core in-house application to Laravel and PHP 8.x, increasing development velocity and ensuring long-term system maintainability. Systematically refactored legacy codebases to implement SaaS-specific features, effectively eliminating years of technical debt and reducing the time-to-market for new feature releases. Maintained a 100% security compliance rate for in-house SaaS applications by proactively patching vulnerabilities in PHP packages Orchestrated the full containerization (Docker) of the production environment, enhancing application portability and ensuring consistent development-to production parity.
  • De Streekboer - Leek
    Senior PHP / Systems Architect
    July 2017 - May 2021 (3 years and 10 months)
    Architected a custom Yii2 backend to offload WooCommerce order management from WordPress, significantly improving site performance and data integrity. Engineered an automated logistics suite that calculated delivery routes and generated picking lists and shipping stickers, reducing processing time by 70%. Developed a centralized financial module within the Yii2 application to reconcile payments and automate invoicing via the WeFact API. Built robust data pipelines to sync real-time order data between WordPress and the custom Yii2 dashboard, handling hundreds of automated updates daily without failure. Developed custom WordPress themes and plugins from scratch, reducing reliance on third-party builders and improving site security Established connections with various APIs (Mailchimp, Mandrill, WeFact)

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Education

  • Dive Into Refactoring Electrical Engineering
    2025
    Dive Into Refactoring Electrical Engineering

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