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Mainul HasanMH

Mainul Hasan

Senior PHP Developer | WordPress & WooCommerce

€350/day
Oslo, NO
8-15 years

Average response time: 1 hour

About Mainul

I help businesses turn their websites into high-performance growth engines that attract more visitors, convert more customers, and scale with their success.

As a Senior PHP Developer & WordPress/WooCommerce Expert, I combine clean, scalable code with conversion-driven design to deliver platforms that are fast, secure, and SEO-friendly. My work bridges creative vision with technical execution, ensuring every feature aligns with measurable business goals.

What I deliver:
  • Custom WordPress & WooCommerce development (themes, plugins, integrations)
  • Website redesign, customization, and template-based website development
  • Custom web applications & modernization of legacy software systems
  • Feature development, application enhancements, and code refactoring
  • E-commerce redesigns & CRO (conversion rate optimization)
  • Core Web Vitals fixes, Google Search Console issue resolution, speed optimization, and caching setup (WP Rocket, Cloudflare, Redis, Memcached)
  • API integrations (payment gateways, CRM, shipping, AI automation)
  • Technical SEO and multilingual site optimization
  • Security hardening and performance monitoring
Results I’ve achieved for clients:
  • Cut page load times by 65% through advanced optimization
  • Increased organic traffic by 120% via targeted SEO & technical improvements
  • Boosted eCommerce conversions by 35% with UX/UI enhancements
  • Optimized SQL queries on 7.8M+ records, reducing reporting from hours to minutes
Whether you need a new build, a complete e-commerce overhaul, or targeted technical improvements, I’ll make sure your platform is more than just an online brochure; it will be a strategic asset that drives measurable growth.
  • English

    Native or bilingual

  • Norwegian

    Basic

Can work on-site
Oslo (up to 50km)

Experience

  • Nordic Digi Solutions
    Founder | Digital Solutions Architect
    July 2025 - Today (11 months)
    Oslo, Norway
    As Founder & Digital Solutions Architect, I lead the discovery, architecture, delivery, and optimization of high-performance digital solutions for Nordic and global clients. I bridge technical innovation, strategic thinking, and design execution to create a measurable business impact.

    Key responsibilities:
    • Architect scalable WordPress/WooCommerce solutions and custom PHP/JavaScript applications
    • Manage end-to-end projects — from requirements gathering and UX/UI planning to launch and post-launch optimization
    • Develop custom themes, plugins, and integrations tailored to client needs
    • Lead e-commerce redesigns, CRO improvements, and Core Web Vitals optimization
    • Implement caching, CDN, and security measures (Cloudflare, Redis, WP Rocket)
    • Integrate APIs for payment gateways, CRM, shipping, and automation
    • Conduct technical SEO audits and fix Google Search Console issues
    • Modernize legacy software systems to improve scalability and maintainability
    • Coordinate cross-functional teams to deliver projects on time and within budget

    PHP Wordpress WooCommerce Technical SEO Technical project management
  • SimulaMet
    Software Engineer
    October 2022 - December 2022 (3 months)
    Oslo, Norway
    Fixed bugs, refactored code, and developed new features for Huldra and PmSys applications. Integrated multiple cloud storage services and enhanced UI customization to improve user experience and maintainability.

    Core achievements:
    • Integrated Azure, OneDrive, Google Drive, and Dropbox for research purposes.
    • Added customizable color schemes to enhance UI personalization.
    • Conducted peer code reviews to uphold high code quality and maintainability.
    JavaScript Microsoft Azure React.js Python GitHub
  • MVI Solutions
    Senior Full Stack Developer
    January 2019 - July 2022 (3 years and 7 months)
    Florida, USA
    Designed and developed scalable web applications and e-commerce platforms for diverse industries. Led backend and frontend development efforts, modernized legacy systems, and implemented advanced SEO and performance strategies.

    Core achievements:
    • Built and maintained custom PHP and WordPress/WooCommerce solutions.
    • Modernized legacy e-commerce applications, improving scalability, security, and user experience.
    • Implemented Progressive Web App (PWA) features and AMP pages to enhance mobile performance and engagement.
    • Delivered technical SEO improvements, including Google Search Console fixes, schema markup, and Core Web Vitals optimization.
    • Developed REST APIs for seamless integration with third-party systems.
    • Optimized performance through database tuning, caching strategies, and server-side enhancements.
    • Mentored junior developers and conducted peer code reviews to ensure maintainable, high-quality code.
    PHP Wordpress API Technical SEO CSS3

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Education

  • MS in Informatics
    University of Oslo (UiO)
    2025
    MS in Informatics

Certifications

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