I’m a full stacked web developer with 20+ years building the web and mobile apps. I am fully versed in CMS’s, especially WordPress.

William Kroes

I’m a full stacked web developer with 20+ years building the web and mobile apps. I am fully versed in CMS’s, especially WordPress.

Available to hire

I’m a full stacked web developer with 20+ years building the web and mobile apps. I am fully versed in CMS’s, especially WordPress.

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Language

English
Fluent

Work Experience

Lead Developer at The Start Group (Start Advertising)
January 1, 2018 - Present
Lead Developer responsible for creating and modifying WordPress themes from XD, PSD, and JPG; developing WordPress plugins; building React Native and ReactJS mobile apps with Expo; managing Linux and Microsoft servers; backing up, modifying, and migrating relational databases; installing, restoring, and migrating WordPress sites; creating a live chat system to improve client support; utilizing Git/GitHub for source control; creating dynamic contact forms with AJAX/jQuery/PHP; producing design assets; and accelerating development time using AI tools (Bard, GPT, Copilot).
Founder & Lead Developer at Charlotte’s Website Company
January 1, 2005 - Present
Founded and led web development for 20+ long-term clients; automated daily server processes with Bash; built custom websites using HTML, CSS, PHP, JavaScript, jQuery, Bootstrap; created scripts for data processing with Bash/Python/Cron/Windows Task Scheduler; automated emails for server status alerts; integrated APIs (Google Maps, Google Analytics, Photoshelter, Sendgrid, MailChimp); advised on Linux/Azure security; installed CRM, CMS, and eCommerce software; assisted clients with DNS, backups, and CMS issues; produced Photoshop mocks and web assets.
Web Developer & System Admin at CC Communications, Inc.
January 1, 2017 - January 1, 2018
Migrated WordPress & DNN sites to Azure from Linux and Windows servers; integrated with Shopify & Stripe APIs for seamless software integration; updated and maintained Linux CentOS VM servers & FreeBSD NAS via SSH; developed custom WordPress themes & plugins using PHP/MySQL/JavaScript; managed databases (MySQL, MSSQL); performed backups using Cloud Storage for restorations; collaborated via GitHub for efficient releases.
Web Developer & System Admin at Vital Management Services
January 1, 2013 - January 1, 2014
Trained staff in link analysis and data visualization; established security standards for CentOS and Windows Server 2012; installed, maintained, and upgraded CentOS, Kali, Windows Server 2012 & 2016 web and email servers; deployed WordPress with customized themes and Analytics; conducted basic pentesting using NMAP, WPScan, Metasploit and Python scripts.
Lead Repair Technician at Computer Logics, LLC
January 1, 2008 - January 1, 2009
Identified and resolved common MS & Linux issues including virus removal, OS and software updates and maintenance; used soldering skills for board-level repairs on customer PCs and servers; contributed to increased store sales.
System Admin & Paralegal at Bush, Doughty & Jones, llc
January 1, 2003 - January 1, 2007
Created a paperless environment to improve workflow for legal staff; built and maintained company website; developed a secure PHP-based communications application enabling two-way legal communications; installed and maintained the office network.

Education

Add your educational history here.

Qualifications

WordPress Theme and Plugin Development (Udemy)
January 1, 2022 - May 12, 2026
JQuery Credential ID 1082-10090636
January 11, 2030 - May 12, 2026
PHP Credential ID 1059-10090636
January 11, 2030 - May 12, 2026

Industry Experience

Software & Internet, Professional Services