Mateusz Bajak
@mateuszbajak
Senior WordPress developer with 10+ years building scalable sites, plugins, and headless experiences using Agile and AI tools.
PolandWhat I'm looking for
I’m a highly-skilled Senior WordPress Developer with 10+ years of experience and a strong Agile mindset. I build and maintain WordPress websites end-to-end—customizing themes, developing and troubleshooting WordPress plugins, and delivering high-quality front-end experiences with CSS3, HTML5, and JS. I also specialize in modern WordPress approaches like headless (REST API & GraphQL), Gutenberg block development, accessibility (WCAG), and performance optimization (Core Web Vitals), using AI tools daily to accelerate development and improve code quality.
In recent roles, I’ve developed a PHP-based website-building platform for the real estate industry, focusing on new features, debugging, and performance/stability/scalability improvements. Previously at Airfleet, I maintained and optimized 35+ high-traffic WordPress sites, led a team of 4 developers, and strengthened delivery through code reviews, testing, security best practices, technical SEO, and caching solutions (e.g., WP Rocket and Cloudflare CDN). I’m also experienced as a freelancer—building responsive WordPress and WooCommerce projects with Gutenberg blocks (including ACF), integrating via REST/GraphQL, and migrating sites into WordPress.
Experience
Work history, roles, and key accomplishments
Senior WordPress Developer
MPC
Jan 2025 - Present (1 year 5 months)
Develop and maintain a real estate website-building platform, implementing new PHP-based features and resolving user-reported issues. Optimize code for performance, stability, and scalability while collaborating across frontend, QA, Product, and UX teams.
Business Owner
A. M. Bajak Ltd.
Jan 2023 - Present (3 years 5 months)
Founded and run a company delivering WordPress-based solutions, and led development of an AI-powered website builder from concept to deployment. Focus on performance optimization and scalable, production-ready implementations.
Senior WordPress Developer
Airfleet
Jan 2022 - Jan 2025 (3 years)
Maintained and optimized 35+ high-traffic corporate WordPress websites, delivering performance and security improvements across sites. Led a team of 4 developers, overseeing code reviews/QA and implementing technical SEO, caching, WCAG improvements, and robust troubleshooting.
WordPress Developer
MB Coders
Jan 2017 - Jan 2023 (6 years)
Developed and maintained eCommerce solutions using WooCommerce and built responsive WordPress sites using Gutenberg blocks with ACF. Migrated existing platforms into WordPress and developed/maintained custom WordPress plugins.
WordPress Developer
Airfleet
Jan 2017 - Jan 2022 (5 years)
Built and maintained WordPress websites and online stores for high-traffic clients. Implemented third-party integrations using REST APIs and GraphQL, and continuously monitored and optimized site performance and functionality.
WordPress Developer
BR Studio
Jan 2014 - Jan 2017 (3 years)
Created responsive WordPress websites for multiple clients while following SEO best practices and implementing custom CMS requirements. Maintained and customized WordPress themes across ongoing projects.
Education
Degrees, certifications, and relevant coursework
Mateusz hasn't added their education
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Availability
Location
PolandAuthorized to work in
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