Kartik Jain

Senior WordPress Engineer & Consultant | Technical Performance Optimization

12+ Years Experience | 150+ Websites Delivered | Performance Focused

India

Kartik Jain

About

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.

Expertise

Proven Expertise

A selection of key technical implementations, custom automation architectures, and successful client delivery milestones.

100
PageSpeed Achieved
Perfect Core Web Vitals score on client sites
150+
Websites Delivered
End-to-end WordPress builds across industries
22k+
Daily Users Managed
High-traffic production environments
50+
Figma → WordPress
Pixel-perfect custom code conversions
3x
Conversion Rate Boost
Achieved via technical fixes, Core Web Vitals & CRO optimization
20+
Domains in Cloudflare
DNS, security & CDN management
Hosting
Kinsta · WPEngine · Hostinger
Managed hosting environments
ClickUp Verified Power User Badge
ClickUp
Verified Power User
Certified · Workflow automation expert
AI Chat
Custom AI Implementation
AI-powered search & chat for production sites
Published Plugin to WordPress Repository
WordPress.org Plugin Directory
Created Pillar Cluster Manager — a specialized SEO tool designed to automate internal linking structures and map out topic clusters directly inside the WordPress dashboard.
Experience

Where I've worked

A chronological overview of my professional roles, key contributions, and engineering impact.

House Buyers of America Logo

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
Greensglobal Logo

Website Consultant

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
Disruptiv Media Logo

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
Digidel Agency Logo

Full Stack 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
FunAsia Network Logo

Technical Lead & Team Manager

FunAsia Network • Ahmedabad, India (Regional Lead) - HQ: Dallas, USA
Oct 2018 – Feb 2024
  • Led the India-based engineering team from Ahmedabad while coordinating daily with the Dallas, USA headquarters
  • 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

Founder & CTO

Awesong.in • Delhi
June 2015 – Oct 2018
  • Founded and scaled a Bollywood music platform from zero to significant organic traffic without any paid acquisition spend
  • Owned full-stack execution — architecture, content strategy, SEO, and growth — as a solo/lean-team operation
  • Built and executed an organic SEO strategy that drove sustained traffic growth, competing against established music platforms with zero ad budget
  • Managed site performance, content publishing pipeline, and technical infrastructure end-to-end
  • Made all product, monetization, and growth decisions as sole founder, balancing user experience with sustainable traffic acquisition
Return On Web Logo

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
Projects

I like building things

A mix of client websites, performance optimizations, and personal tools — each one solving a real problem.

Education

Bachelor of Technology - Computer Science

Rajasthan Technical University, India
Aug 2010 – Jul 2014
Skills

Technical Stack & Skills

Core technologies, frameworks, tools, and platforms I work with.

WordPress Custom PHP MySQL JavaScript HTML5 CSS3 Core Web Vitals PageSpeed Optimization Technical SEO REST API Webhooks CRM & API Integration Cloudflare WAF & Security Git ACF Gutenberg Blocks
Blog

Latest Articles

Insights and tutorials on custom WordPress engineering, database optimization, and performance.

Reviews

Client Feedback

What clients and partners say about working together on custom engineering solutions.

I had the pleasure of working with Kartik for over 5 years at Funasia Network, where he was our key technical contact and a driving force behind our web infrastructure and product development.

Kartik brought a rare combination of strong technical depth and genuine leadership. He didn’t just execute — he took ownership of our technical architecture end-to-end, making sure our website infrastructure was scalable, secure, and built to support the business as we grew. Whenever we needed to integrate with third-party vendors for product development, Kartik was the one who bridged the gap between our internal goals and external technical requirements, managing those relationships smoothly and always keeping the bigger picture in mind.

Beyond his individual technical skills, Kartik was also excellent at managing and mentoring the team around him. He had a way of translating complex technical decisions into clear direction for the team, which made execution faster and reduced friction across projects.

Over five years, I came to rely on Kartik not just as a developer, but as someone I could hand a problem to and trust it would be solved the right way. He’s dependable, sharp, and genuinely invested in doing quality work. Any organization would be lucky to have him.

Kartikbhai is really a well-experienced and the most sincere web designer I have worked with. He developed my website, awesomewaters.in, and completed the entire project within four days with so much accuracy and attention to detail.

What impressed me even more was how he handled a difficult situation later on. My original website was built using Elementor, a lot of plugins, and a nulled theme, and it ended up getting completely hacked. I was worried I had lost everything. Kartikbhai recovered all the content, images, and structure from the hacked site, and then redeveloped the entire website from scratch using custom coding — no page builders, no nulled themes, no unnecessary plugins. The result was a faster, more secure, and much better performing website than before.

His dedication, technical knowledge, and honesty really stand out. He doesn’t just build a website and move on — he genuinely cares about getting it right and standing by his work when problems come up. Really a master at his craft. Highly recommended for anyone who wants a reliable and skilled web developer!

K

Kunjal Shah

Owner, AwesomeWaters

Kartik took full ownership of four websites, consistently delivering at a high standard while maintaining reliability and performance. His standout achievement was eliminating over 20 plugins by building custom-coded solutions — improving security, performance, and long-term maintainability. He built custom functions that rolled out changes across thousands of pages in one go, and his PageSpeed optimisation work had a clear, measurable impact. Beyond the technical work, his documentation was thorough and made it easy for the team to carry things forward. A skilled, proactive developer with a results-driven mindset — I’d recommend him without hesitation.

Kartik has been a valuable asset to our company. I initially found him through a freelance platform, and his exceptional abilities quickly convinced me to bring him on board permanently. Despite tight timelines on many challenging projects, he consistently delivers high-quality work, often completing multiple projects within a week.

His primary role involved translating complex Figma designs into functional custom WordPress websites with custom fields. He’s a quick learner with comprehensive knowledge of web technologies — whether it’s managing our WPEngine server, troubleshooting FTP issues, or resolving production problems, he consistently provides prompt, effective solutions.

Despite working remotely with us for 3.5 years, Kartik maintained excellent communication with our content and design teams, and actively contributed to improving our workflows, design, and development processes.

He’s tech-savvy, stays current with market trends, and consistently brings innovative solutions to the table. Highly recommended — he’ll add significant value to any team he joins.

Kartik is a skilled professional with strong knowledge of web technologies and business requirements gathering from stakeholders, consistently delivering projects on time. Highly recommend working with him

I’ve worked closely with Kartik across 3 years of freelancing projects. He’s an exceptionally talented web developer with a deep understanding of PHP, WordPress, PHP frameworks, SEO, and frontend design — consistently turning complex ideas into functional, aesthetically pleasing websites. He writes clean, efficient code and brings a keen design eye that keeps the user experience front and centre. Beyond the technical side, he’s a reliable team player and a clear communicator who collaborates effectively across cross-functional teams, making him invaluable in any development environment.

S