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Available for remote hire & relocation. Senior WordPress Developer · 6+ years · Fintech, E-commerce, Plugins. Reach out: [email protected]

WP
6+
YRS

Welcome to Nashrullah Khan's Developer Profile.

Senior WordPress Developer based in Surat, India. I build production-grade platforms — custom plugins, fintech data systems, REST APIs, and WooCommerce solutions. Not a plugin-pusher. A solutions architect.

Core Expertise

Custom Plugin Development
Performance Optimisation
REST API & Integrations
WooCommerce Development

Industries Served

Fintech & Stock Platforms
Luxury E-commerce
International Agency Work
IT Services

Open to Work In

Remote — Worldwide
UAE · Dubai
Germany · Netherlands
Portugal · UK

6+

Years Experience

40+

Projects Delivered

9×

Performance Gains

4

Industries

At a Glance

6

Case StudiesPublished

40+

ProjectsDelivered

1

Pluginon WP.org

18s→2s

QueryOptimised

Work Experience

Recently Published

WordPress Developer · Fintech Brokerage
Surat, India — High-traffic fintech platform, JWT auth, SEO at scale

2022–Now
Senior WP Dev & Team Lead · Luxury E-com
Ring Builder Plugin — published on WordPress.org

2020–2022
WordPress Developer · Web Agency
International clients — US, UK, Europe. Custom plugins & CPT systems

2018–2020
WordPress Developer · IT Services
Foundation: PHP, MySQL, jQuery, Gutenberg, WooCommerce

2017–2018

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Case Studies (6 published)

WordPress Query Overhaul — 18s to Under 2s

Fintech · Performance Engineering

Raw SQL $wpdb jQuery AJAX ~9× faster

Eliminating 429 Rate-Limit Errors on Financial API

Fintech · API Reliability

Stale Cache Transients API wp-cron 0 errors

JWT Auth Migration — Client-Side JS to Server-Side PHP

Fintech · Security & Auth

JWT/HS256 cURL $_COOKIE 100% secure

Dynamic SEO Meta Tags Across 1000s of Stock Pages

Fintech · Technical SEO

Rank Math Open Graph 1000s unique

Ring Configurator Plugin — Published on WordPress.org

E-commerce · Custom Plugin

WP.org Live PHP OOP WooCommerce

Custom Mega Menu Plugin — US Client Handoff

International · Plugin Dev

Custom Plugin CSS Variables v1.1 shipped

Top Skills

WordPress Core

Expert

Custom Plugin Dev

Expert

PHP 8+

Expert

WooCommerce

Expert

REST API

Expert

MySQL / SQL

Advanced

JWT Auth

Advanced

Gutenberg Blocks

Advanced

Azure DevOps

Intermediate

Case Studies

All (6) | Fintech (4) | E-commerce (1) | International (1)

WordPress Query Overhaul — 18s to Under 2s

Fintech · Performance Engineering — A live financial platform's news page timed out at ~18 seconds. Replaced WP_Query with raw SQL using SQL_CALC_FOUND_ROWS, fixed broken jQuery event delegation on dynamic AJAX pagination, and rebuilt the data layer entirely. No caching plugins — root-level query fixes.

Raw SQLSQL_CALC_FOUND_ROWS$wpdbjQuery AJAXPagination~9× faster load

Eliminating 429 Rate-Limit Errors on Financial Data API

Fintech · API Reliability — Intermittent 429 errors breaking live financial data feeds during peak traffic. Engineered a dual-transient stale cache architecture — serving valid cached data immediately while refreshing in background via wp-cron. Zero user-facing failures after deployment.

Stale CacheTransients APIwp-cronRate Limit HandlingBackground Refresh0 API errors post-fix

JWT Auth Migration — Client-Side JS to Server-Side PHP

Fintech · Security & Auth — A sensitive financial page exposed JWT token handling in client-side JavaScript. Rebuilt entire auth flow in PHP: server-side FingerprintJS proxying, JWT generation/validation using HS256, and secure $_COOKIE injection within a single request lifecycle via cURL.

JWT/HS256Server-Side PHPFingerprintJS$_COOKIEcURL100% token exposure removed

Dynamic SEO Meta Tags Across Thousands of Stock Detail Pages

Fintech · Technical SEO — Thousands of stock pages shared identical generic meta, invisible to search engines. Implemented dynamic Rank Math SEO PHP filter hooks generating unique, data-driven title, description, and Open Graph per stock symbol. Diagnosed Twitter Card suppression via OG inheritance conflicts.

Rank Math HooksDynamic MetaOpen GraphTwitter CardsPHP Filters1000s pages SEO-unique

Ring Configurator Plugin — Built & Published on WordPress.org

E-commerce · Custom Plugin — Interactive diamond ring configurator for a luxury jewellery brand. Users personalise stone, setting, metal, and size with live pricing. PHP OOP plugin architecture, AJAX-driven UI, WooCommerce add-to-cart hooks, custom admin panel. Led team through full lifecycle.

WP.org PublishedPHP OOPWooCommerce HooksAJAX / wp_ajaxTeam Lead

Custom Mega Menu Plugin — Delivered for US-Based Client

International · Plugin Dev — US commercial signage company needed a bespoke WordPress header and mega menu. Built entirely custom: responsive breakpoint logic in JS and CSS, WooCommerce plugin conflict resolution, brand colour system via CSS custom properties. Shipped v1.0 then iterated to v1.1.

Custom PluginMega MenuResponsive JSCSS VariablesWooCommerce Conflict Fixv1.1 shipped & handed off

Skills

WordPress Core PHP & Backend Frontend DevOps & Tools

Skill	Level	Notes
WordPress Core	Expert	Hooks, filters, template hierarchy, WP lifecycle, options API
Custom Plugin Dev	Expert	PHP OOP, admin pages, REST endpoints, AJAX, nonces
Custom Theme Dev	Expert	From scratch, child themes, template parts, wp_head/footer
Custom Post Types	Expert	CPT, taxonomies, meta fields, register_meta, ACF
WooCommerce	Expert	Hooks, templates, product types, checkout, gateways
REST API	Expert	Custom endpoints, register_rest_route, permissions, auth
Gutenberg Blocks	Advanced	block.json, InspectorControls, attributes, RichText
Multisite	Intermediate	Network setup, switch_to_blog, cross-site queries
ACF Pro	Expert	Field groups, CPT relationships, flexible layouts, blocks

Skill	Level	Notes
PHP 8+	Expert	OOP, closures, traits, interfaces, Composer
MySQL / SQL	Advanced	Joins, subqueries, SQL_CALC_FOUND_ROWS, indexing
$wpdb / Raw SQL	Advanced	Prepared statements, query optimisation, pagination
JWT Authentication	Advanced	HS256, token signing/validation, server-side PHP
cURL / HTTP	Advanced	wp_remote_get, custom headers, cookies, timeouts
Caching Strategies	Advanced	Transients API, stale cache, dual-transient, object cache

Skill	Level	Notes
JavaScript / ES6+	Advanced	Fetch, async/await, closures, event delegation
jQuery & AJAX	Expert	wp_ajax, nonces, dynamic DOM, event delegation
HTML5 / CSS3	Expert	Semantic markup, Flexbox, Grid, CSS variables, animations
Elementor Pro	Expert	Custom widgets, dynamic tags, theme builder
Divi / Avada / WPBakery	Expert	Theme setup, custom modules, shortcodes

Skill	Level	Notes
Git	Advanced	Branching, merges, sparse checkout, conflicts, GitLens
Azure DevOps	Intermediate	PBI management, sprint planning, RFC documentation
WP Rocket	Expert	Cache rules, exclusions, cache busting, preloading
Cloudflare	Advanced	DNS, CDN, page rules, firewall, Workers
Rank Math SEO	Advanced	Filter hooks, dynamic meta, schema, OG & Twitter Card
Wordfence	Advanced	Security hardening, firewall rules, 2FA, scans
Linux / SSH	Intermediate	File management, permissions, cron jobs, logs

Services

⚙️ Custom Plugin Development

Production-grade plugins built from scratch — full lifecycle: architecture, admin UI, REST endpoints, AJAX. Custom post types, taxonomies, ACF integration. Published on WordPress.org.

Stack: PHP OOP · Hooks & Filters · REST API · AJAX

⚡ Performance Optimisation

Real performance work — database query rewrites, API caching architecture, server-level tuning. WP_Query → raw SQL, SQL_CALC_FOUND_ROWS, stale cache strategies, Core Web Vitals.

Stack: Raw SQL · Transients API · WP Rocket · Cloudflare

🔗 REST API & Integration

Connecting WordPress to external APIs, payment gateways, and real-time data sources — with proper auth, error handling, and rate-limit resilience. JWT & OAuth, server-side proxying, webhook listeners.

Stack: REST API · JWT · cURL · Webhooks

🛒 WooCommerce Development

Beyond basic setup — custom product types, checkout customisation, payment gateway integration, performance tuning for high-traffic stores. Plugin conflict resolution.

Stack: WooCommerce · Custom Products · PHP Hooks

📊 Fintech & Data Platforms

WordPress platforms where accuracy and uptime are non-negotiable. Real-time stock & financial data, secure auth systems, high-traffic performance. Azure DevOps, UAT → staging → production.

Stack: Fintech · JWT Auth · Azure DevOps

🔍 WordPress SEO Engineering

Technical SEO in the codebase. Dynamic meta generation, Open Graph, JSON-LD schema markup, crawl optimisation. SEO for thousands of programmatic pages.

Stack: Rank Math · JSON-LD · Open Graph · Schema

Tech Stack

Core WordPress

WordPress Core WooCommerce Gutenberg ACF Pro Elementor Pro Divi Avada WPBakery

Backend & Database

PHP 8+ MySQL $wpdb / Raw SQL JWT (HS256) cURL Transients API REST API wp-cron Webhooks

Frontend

JavaScript ES6+ jQuery & AJAX HTML5 / CSS3 Swiper.js GLightbox

DevOps, Performance & SEO

Git Azure DevOps WP Rocket Cloudflare Rank Math SEO Wordfence Linux / SSH JSON-LD Schema Open Graph

Work Experience

WordPress Developer · Fintech Brokerage Platform Surat, India · 2022 – Present

CURRENT

→ Architected and maintained high-traffic fintech web platform serving live stock market data via third-party APIs
→ Reduced AJAX query time from 18s to <2s by replacing WP_Query with raw SQL and fixing jQuery event delegation
→ Engineered dual-transient stale cache eliminating 429 API rate-limit errors in production
→ Rebuilt client-side JWT auth system as a secure PHP server-side solution using cURL and $_COOKIE injection
→ Implemented dynamic Rank Math SEO filter hooks generating unique meta for thousands of stock pages
→ Managed RFC documentation, Azure DevOps PBI sprints, and multi-branch Git deployment workflows

Senior WordPress Developer & Team Lead · Luxury E-commerce Surat, India · 2020 – 2022

→Designed and published Ring Builder Plugin on WordPress.org — PHP OOP interactive product configurator
→Led development team across multiple WordPress and WooCommerce properties
→Full project lifecycle ownership: requirement analysis → architecture → deployment → support

WordPress Developer · Web Development Agency International Clients — US, UK, Europe · 2018 – 2020

→Managed international client projects end-to-end — US, UK, and European markets
→Built custom WordPress plugins, themes, and CPT-based CMS systems
→Direct client communication, requirement gathering, iterative feedback, post-launch support

WordPress Developer · IT Services Company Surat, India · 2017 – 2018

→Built strong foundation in Core PHP, MySQL, jQuery, and AJAX through production project delivery
→WordPress themes and plugins across Gutenberg, Elementor, Avada, Divi, WPBakery

Contact

📬 Get in Touch

Whether you need a senior WordPress developer on your team, a custom plugin built properly, a slow site fixed, or a performance problem solved — reach out. I respond within 24 hours.

Email [email protected]

Location Surat, Gujarat, India

Availability ● Open to Hire

Work Mode Remote Worldwide · Open to Relocation

Open to Relocate

🏠 Remote 🇦🇪 UAE · Dubai 🇩🇪 Germany 🇳🇱 Netherlands 🇵🇹 Portugal 🇬🇧 UK

✉ Send a Message

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