Open to Remote or Hybrid WorkAvailable ImmediatelyRemote GMT+7

Senior WordPress Engineer & Ex-Tech Lead

10+ Years of Experience in Custom Website Development

I write custom WordPress code: themes, plugins, CPT, hooks, filters, and WP_Query logic that holds up as sites grow. 10+ years of PHP, MySQL, and JavaScript, from business sites to booking engines.

Open to Full-time Remote or Hybrid Work, Fractional Roles, Contract-to-Hire.

10+ Years Experience
Building & maintaining production WordPress & Magento sites
Hands-On Lead
Writes code, reviews PRs, coordinates the team in Asana
Performance-First Dev
Core Web Vitals, GSC/GA4, caching & CDN, SEO
HR Snapshot
Role TargetSr WordPress Engineer / Full-Stack Developer
LocationMagetan, East Java, Indonesia
TimezoneGMT+7 • EU/US overlap
TypeFull-time Remote / Hybrid
AvailabilityImmediately • 40+ hours/week
Preferred stack in team
Headless CMSAstroWordPressWooCommerceMagento 2PHP 8+JavaScriptMySQLGitNginxDockerCloudflare
Strength
  • Ownership
  • Architecture
  • Mentoring
Collaboration
  • Git
  • Code Review
  • Asana

Summary

Custom WordPress development, 10+ years

Senior WordPress Developer with 10+ years building, scaling, and maintaining production WordPress & Magento websites.

At PT Sebangsa Bersama, I developed and maintained three live platforms (SebangsaNetwork.com, Komunita.id, Support.Arena.id): shipping features, patching security issues, and releasing through a Git workflow.

I've worked remotely, building custom themes and plugins, optimizing WooCommerce stores, and handling technical SEO (GSC/GA4).

I’ve also reviewed code and coordinated developers through Git and Asana. Looking for a long-term team where I can build custom WordPress websites.

Team CollaborationArchitectureCode ReviewOpen to Remote or Hybrid Work • EU/US Overlap

What I Do

Custom WordPress Development

  • Create Themes & Plugins from scratch
  • Custom Post Types, Custom Database, Hooks & Filters
  • Optimized WP_Query & Custom SQL Queries
  • WooCommerce Cart & Checkout Customization
  • Third-Party API Integrations (Payments, Webhooks, etc)
  • Headless WordPress with Astro frontend

Security, Performance & SEO

  • Core Web Vitals Audits & Fixes
  • Technical SEO (on-page, link building, GSC, GA4)
  • Security Hardening & Malware Cleanup
  • VPS / Docker / Nginx / Caching / Cloudflare

Workflow & Delivery

  • Code Review & Pull Requests
  • Team Coordination Asana / Git
  • Site Audit & Fixes

Experience

Career timeline

Self-Employed (Remote)

Apr 2020 — Present
WordPress Engineer & Hands-on Leader • Remote • East Java (GMT+7)
6+ years
  • TigitMotorbikes.com (Magento 2): Led Magento 2 devs to rebuild custom e-commerce platform. Scope: rental system, booking management, custom checkout, POS, inventory sync. Result: Improved website performance and scalable features
  • TheExtraMile.co (Custom WordPress): Built custom WP site from scratch for bike rental company, focusing on performance and SEO-ready structure. Stack: Custom Theme, Webpack, SCSS. Result: Improving company value for having online booking system
  • ResepMamiku.com (Custom WordPress + Technical SEO): Managed GSC, GA4, on-page & technical SEO. Result: Grew organic traffic up to 100k+ monthly users
  • FreemiumAssets.com (Custom WP + Webpack): Built custom asset library with optimized asset delivery. Result: PageSpeed 90+
WordPressWooCommerceMagento 2PHP 8+MySQLGitDockerNginxVPSCloudflareWebpackSCSSGSCGA4Asana

PT Sebangsa Bersama

Aug 2017 — Mar 2020
WordPress Engineer • Yogyakarta (On-site) • Full-time
2 years 8 months
  • Developed & maintained websites: SebangsaNetwork.com, Komunita.id, Support.Arena.id
  • Responsible for uptime, security patching, and feature development using Git
WordPressPHPMySQLGitSecurity PatchingDeployment

Pradesga Indonesia

May 2015 — Feb 2017
Web Developer • Ponorogo (On-site) • Full-time
1 year 10 months
  • Built 10+ business websites — custom WordPress themes, CodeIgniter applications, native PHP solutions.
  • Delivered full-stack: theme development, backend logic and hosting setup
WordPressCodeIgniterPHPMySQLBootstrapSCSS

Technical Stack

Tap any technology to open its docs
Collaboration
Code ReviewAsanaTask CoordinationSite Audit & Fixes
Engineering Principle

Keep it simple, keep it fast. Clean code and testing before every release.

Selected Work

Role, stack, and what changed

github.com/buyzer↗

Education

Academic background
Software Engineering
SMKN 1 Ponorogo • 2015 • Ponorogo, East Java
Focus: Web Development, Programming Fundamentals, Software Engineering Principles
Open to a new team

Have a WordPress codebase that needs a Senior Developer?
Let's talk about your website and where I'd start

Open to Remote or Hybrid Work • Fractional Roles • Contract-to-Hire • Flexible overlap EU/US
Contact for Hiring Managers
LocationMagetan, East Java, Indonesia
TimezoneGMT+7
AvailabilityImmediately • 40+ hours/week
© 2026 Buyung Abadi • Senior WordPress Engineer & Ex-Tech Lead • Indonesia