Resume - Kartik Jain

Professional Summary

Senior WordPress Developer with 12+ years of hands-on experience building high-performance, custom WordPress solutions for agencies and enterprise clients. Specialized in custom theme and plugin development, Core Web Vitals optimization, CRM integrations, and scalable WordPress architecture. Code-first approach with focus on clean, maintainable solutions. Proven ability to deliver 90+ PageSpeed scores, architect complex WordPress implementations, and manage large-scale websites.

Key Achievements

Built 150+ custom WordPress websites
Consistently delivered 90+ PageSpeed scores
Architected WordPress Multisite for 40+ regional websites
Eliminated 20+ third-party plugins and replaced with custom PHP
Managed Cloudflare infrastructure for 50+ websites
Integrated multiple CRM platforms: HubSpot, Salesforce, Zoho, Microsoft Dynamics
Optimized Core Web Vitals across large-scale WordPress implementations

Professional Experience

Lead Wordpress Developer | House Buyers of America – USA (Remote)

Sep 2024 – Present

Architected multi-step lead funnels using Gravity Forms with conditional logic and real-time inline validation
Integrated WordPress with Microsoft Dynamics CRM via custom REST API for automated lead routing and pipeline management
Implemented GA4 + Google Tag Manager event tracking across full conversion funnel
Developed reusable ACF Gutenberg blocks enabling non-technical teams to self-manage complex page layouts
Built AI-powered automation workflows using custom webhooks for lead qualification and CRM data synchronization

Senior WordPress Developer | Disruptiv Media – UK (Remote)

May 2024 – Aug 2024

Owned full WordPress maintenance and development for 4 client websites, ensuring high performance and reliability
Eliminated 20+ third-party plugins by rebuilding functionality as custom PHP solutions
Built custom PHP functions enabling bulk page updates across thousands of pages
Delivered measurable PageSpeed and Core Web Vitals improvements across all managed sites
Produced comprehensive documentation for self-managed platform administration

Senior WordPress Developer | Greensglobal – USA (Freelance)

May 2024 – Present

Managing complete DNS infrastructure and server architecture via Cloudflare (security, WAF, CDN, caching)
Leading website migration and consolidation from multiple hosting environments to unified infrastructure
Performing continuous performance monitoring and scalability planning

Senior WordPress Developer | Digidel Agency – USA (Freelance)

Oct 2019 – May 2024

Delivered 150+ fully custom WordPress websites across healthcare, real estate, legal, and home services industries
Built scalable location-based SEO architectures using Custom Post Types, custom taxonomies, and programmatic templates
Integrated CRM platforms (HubSpot, Salesforce, Zoho) via custom APIs and webhooks
Optimized Core Web Vitals, implemented JSON-LD structured data, and conducted technical SEO audits
Managed Cloudflare DNS, WAF, CDN, page rules, and SSL configuration for 50+ sites

Technical Lead & Team Manager | FunAsia Network & FunAsia Films – USA

Oct 2018 – Feb 2024

Architected and maintained WordPress Multisite network for 40+ regional websites with shared theme framework and isolated configurations
Built custom admin dashboards, internal REST APIs, and automation scripts for streamlined content management across network
Implemented custom post types, taxonomies, and complex database queries for efficient multisite operations
Developed custom cron jobs and background processes for automated content updates and data synchronization
Managed performance optimization, security hardening, and scalability planning for entire multisite network

Wordpress Developer | Return On Web – Pune, India

Sep 2014 – Jun 2015

Managed custom WordPress development for 20+ real estate client websites
Conducted comprehensive website audits and implemented technical optimizations

Technical Skills

WORDPRESS CORE: Custom theme development, custom plugin development, hooks and filters, REST API, Multisite architecture, Custom Post Types (CPT), Custom taxonomies, ACF and Advanced Custom Fields, Gutenberg block development, Elementor (when required)

PERFORMANCE & CORE WEB VITALS: LCP optimization, INP optimization, CLS optimization, Critical CSS implementation, JavaScript deferral and code splitting, Image optimization (WebP, lazy loading), Database query optimization, Caching strategies, PageSpeed and Lighthouse optimization

TECHNICAL SEO: JSON-LD structured data implementation, XML sitemaps, Canonical tags, Robots.txt optimization, Crawl control and management, Technical SEO audits, SEO-safe migrations and redirects, Heading structure and semantic HTML

BACKEND & DATABASES: PHP development (OOP and procedural), MySQL optimization and query performance, Custom REST APIs, Cron jobs and background processes, WP_Query optimization, Custom database schema design, Advanced WordPress hooks

INTEGRATIONS & AUTOMATION: CRM integrations (HubSpot, Salesforce, Zoho, Microsoft Dynamics), Gravity Forms and custom form handling, Webhook implementation and automation, Marketing automation platform integration, Custom API development

INFRASTRUCTURE & DEVOPS: Cloudflare DNS, WAF, CDN, page rules, cache rules, SSL/TLS management, Server management and optimization, Hosting platforms (Kinsta, WP Engine, SiteGround), Staging and production workflows, Database backups and optimization

FRONTEND TECHNOLOGIES: HTML5 semantic markup, CSS3 and SCSS, Tailwind CSS, Bootstrap, JavaScript and jQuery, AJAX, Responsive design, Mobile-first approach, Cross-browser testing

TOOLS & PLATFORMS: Git and Bitbucket, ClickUp and Asana, Google Search Console, Semrush and Ahrefs, GA4 and Google Tag Manager, Cloudflare, WP CLI, WordPress REST API testing tools

Education

Bachelor of Technology, Computer Science | Rajasthan Technical University – India

Aug 2010 – Jul 2014