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Shuuichi KashimuraSK

Shuuichi Kashimura

WordPress Front‑end Architect

€327/day
Mito, JP
8-15 years

Average response time: 1 hour

About Shuuichi

I am a front‑end architect specializing in structure‑driven WordPress custom theme development.
My focus is on building lightweight, fast, and long‑lasting “Japan Quality” themes that faithfully reproduce the design while maintaining technical integrity.
Over the past 15+ years, I have contributed to more than 300 website builds.

Architectural Approach
Rather than relying on existing templates, I design a responsibility‑separated theme architecture from scratch based on each project’s requirements.
This approach provides clear, measurable value:

Scalability
A consistent BEM/FLOCSS‑based codebase that remains stable even as content grows, ensuring layouts do not break and future developers never get lost.

Performance
A lightweight, plugin‑minimal custom theme optimized for Core Web Vitals, delivering fast, stable performance in real‑world conditions.

Sustainability
WCAG 2.1‑conscious accessibility and semantic HTML that strengthen technical SEO and long‑term maintainability.

Technical Stack
WordPress Expertise
ACF, Custom Post Types, multilingual architecture (WPML‑ready)

Modern Front‑end
HTML5, CSS3 (Stylus/Sass), JavaScript, PWA integration

Design to Code
Pixel‑perfect implementation from Figma or Adobe XD

Quality Assurance
Clean, well‑documented code that other developers can easily maintain and extend

Message to Partners
Agencies and directors consistently describe my work as
“structurally reliable,” “long‑term friendly,” and “safe to hand over.”
I operate not just as an external contractor, but as an independent front‑end unit that strengthens your production quality through technical leadership and architectural clarity.
  • English

    Native or bilingual

  • Japanese

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Freelance
    Corporate Landing Page – PWA‑Ready Front‑end Build
    December 2025 - February 2026 (2 months)
    Role: Front‑end Engineer
    Overview:
    Developed a fast, minimal‑JS landing page demonstrating PWA integration and performance‑driven architecture.

    Key Contributions:

    Implemented service worker, manifest, offline fallback

    Achieved fast LCP and stable CLS through structural optimization

    Built a clean, scalable CSS architecture

    Ensured accessibility and semantic markup

    Tech Stack:
    HTML5, CSS3, JavaScript, PWA
    PWA Firebase Headress Wordpress Wordpress Development
  • Freelance
    International Service Company – Custom WordPress Theme (EN/JA)
    May 2025 - August 2025 (3 months)
    Role: WordPress Technical Implementer
    Overview:
    Created a multilingual corporate website with a custom theme optimized for international audiences and long‑term operation.

    Key Contributions:

    WPML‑ready architecture with translation‑safe templates

    Flexible content modules for marketing teams

    Semantic HTML and WCAG‑conscious markup

    Plugin‑minimal, maintainable codebase

    Performance‑first implementation for stable LCP/CLS

    Tech Stack:
    WordPress, PHP, ACF, HTML5, CSS3, JavaScript


    Note on Portfolio:
    Due to NDA (Non-Disclosure Agreements) with my partner agencies, many of my latest corporate projects cannot be showcased publicly. However, I can provide detailed case studies, code samples, or a walkthrough of my WordPress architecture upon request during a private inquiry. Please feel free to reach out to see how I can support your next high-stakes project.
    wordpress theme Multilanguage Figma to Wordpress Web development BEM/FLOCSS
  • Freelance
    Global Manufacturer – Corporate Website (Multilingual WordPress Theme)
    FASHION AND COSMETICS
    February 2024 - July 2024 (5 months)
    Fukuoka, Japan
    Role: WordPress Front‑end Architect
    Overview:
    Developed a fully custom WordPress theme for a global manufacturer operating across multiple regions.
    The project required multilingual support, long‑term maintainability, and a scalable architecture suitable for future expansion.

    Key Contributions:

    Designed a responsibility‑separated theme structure using BEM/FLOCSS

    Built reusable template components for news, products, and corporate content

    Implemented ACF‑based content management for non‑technical editors

    Delivered multilingual routing (EN/JA/CN) with clean URL logic


    Optimized Core Web Vitals through lightweight, minimal‑JS front‑end engineering

    Ensured stable rendering across devices and browsers

    Tech Stack:
    HTML5, CSS3/Sass, JavaScript, PHP, WordPress, ACF, JSON‑LD

    Note on Portfolio & NDA:
    Due to NDA (Non-Disclosure Agreements) with my partner agencies, many of my latest corporate projects cannot be showcased publicly. However, I prioritize my clients' confidentiality above all. Upon request during a private inquiry, I can provide detailed case studies, code samples, or a video walkthrough of my WordPress backend architecture to demonstrate my quality standards.
    wordpress theme Wordpress Development XD to Wordpress BEM/FLOCSS

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