Cart and checkout failures
Reviewing sessions, gateways, validation, redirects, and custom checkout logic without trial and error in production.
WordPress and WooCommerce Engineering
Senior WordPress and WooCommerce Developer for Complex Technical Problems
I help agencies and businesses properly assess and resolve complex WooCommerce issues, custom plugins, API integrations, order workflows, and site performance problems.
Limited capacity for project work and specialist support
SAMPLE REVIEW / 01
Sample technical review sequence
hamid@aarab:~/review$ ./technical-review
- initializing review environment...
- inspecting WooCommerce Core
- reviewing Custom Plugin architecture
- tracing Checkout Flow
- checking API Sync
- validating HPOS compatibility
- profiling Performance
- preparing technical findings...
STATUS: review sequence complete
About 10 years
Professional PHP and WordPress experience
Backend Engineering
Specialized focus on WooCommerce architecture and workflows
WordPress.org
Published plugin in the official WordPress repository
Problems I Solve
When an off-the-shelf solution is not enough for the technical problem
My work focuses on the points where custom code, order data, external services, and real environment constraints meet.
Order, price, and inventory mismatches
Tracing data flow between WooCommerce and ERP, CRM, warehouse, or sales services with reliable logging and retries.
Legacy and incompatible plugins
Resolving PHP and WooCommerce compatibility issues, reviewing architecture, reducing technical debt, and preparing a maintainable path forward.
Slow and difficult production errors
Profiling queries, cron, Action Scheduler, cache, and asynchronous requests to reach the root cause.
Technical Services
Focused technical collaboration with clear scope and output
The collaboration model is defined by the problem, code state, and required access level; not by a generic preset package.
AUDIT
WooCommerce Technical Assessment
Reviewing code structure, data flow, production risks, and delivering a prioritized execution path.
- Code review
- Data flow
- Risk map
RESCUE
Technical Rescue and Incident Fixes
Diagnosing and correcting checkout, order, API, or performance errors that have blocked a project.
- Debugging
- Checkout
- Production
PLUGIN
Plugin Development and Maintenance
Designing or refactoring custom plugins with HPOS compatibility, WordPress standards, and a stable release path.
- Architecture
- HPOS
- Maintenance
SYNC
API and Systems Integration
Building resilient connections with inventory, order, loyalty, shipping, and payment services.
- REST API
- Webhooks
- Retries
AGENCY
White-label Agency Support
Behind-the-scenes collaboration for complex backend work, code review, and specialist support on client projects.
- Async
- Confidential
- Senior support
Collaboration Process
First, we define the problem precisely
The goal is to reduce ambiguity before changes begin and create a technical path that can be reviewed.
-
01
Receive context
The problem description, symptoms, constraints, and required access are collected.
-
02
Assessment and diagnosis
Code, data, and runtime behavior are reviewed to find the root cause.
-
03
Execution path proposal
Scope, risks, priorities, and completion criteria are made clear.
-
04
Implementation and handoff
Reviewable and tested changes are delivered with a technical report.
Published Plugin
Product Expiration Easy Peasy
A plugin for managing product expiration dates in WooCommerce, published in the official WordPress.org repository.
- WooCommerce
- Open source
- WordPress.org
Technical Capabilities
Depth of specialization instead of a long tool list
Capabilities are grouped by their real role in solving problems, without fake percentages or rankings.
WooCommerce engineering
Core expertise- Checkout & Cart
- Orders & HPOS
- Store API
- Action Scheduler
- Payment workflows
WordPress architecture
Core expertise- Custom plugins
- Theme architecture
- Capabilities
- Admin interfaces
- Cron & background jobs
Integrations
Core expertise- REST API
- Webhooks
- ERP / CRM
- Inventory sync
- External order systems
Frontend & build
Supporting- Blade
- Sage & Acorn
- Vite
- JavaScript
- Gutenberg
Infrastructure & workflow
Supporting- Composer
- Git
- Linux
- MySQL
- Production debugging
HAMID AARAB / BACKEND ENGINEER
Selected Experience and About Me
A backend view of the product, not just delivery of a page
I am Hamid Aarab, a senior PHP, WordPress, and WooCommerce developer. My experience focuses on custom plugin and theme development, systems integration, production stability, and maintaining projects that go beyond standard use cases.
- Designing and maintaining custom order, price, and inventory workflows
- Technical collaboration with agencies and software teams in async workflows
- Practical experience in performance, multilingual, and technical SEO
Technical Articles
Notes from development and debugging experience
Published writing about WordPress architecture, WooCommerce, and solving real development problems.
Professional Collaboration
If you have a specific technical problem, let us start from that problem.
For a technical assessment, a complex fix, plugin maintenance, or specialist team support, send the project context. After the initial review, I will clearly suggest the most suitable next step.
Collaboration is available as project work, fixed-scope work, or periodic specialist support.