01
CMS & Website Platforms
- WordPress
- Elementor
- Divi
- ACF
- WooCommerce
- Shopify
- Duda
- Wix
- Magento
- Drupal
- Joomla
Senior Web Developer
I build websites that perform.
I'm Jaycar B. Serojano, a Senior Web Developer with 13+ years of experience building, maintaining, optimizing, and launching websites for international clients across the United States, Canada, Europe, and beyond.
Developer Profile
13+
Years of Web Development Experience
WordPress · Shopify · Duda
CMS & E-commerce Development
PHP · JS · MySQL
Core Development Stack
SEO + Analytics
Technical SEO, GA4, GTM & Search Console
About Me
Web development backed by technical SEO experience.
I am a web developer with more than 13 years of professional experience working on websites for businesses and digital marketing agencies.
My work covers website development, redesigns, maintenance, troubleshooting, migrations, responsive implementation, performance optimization, technical SEO implementation, analytics tracking, and website launch support.
I specialize in WordPress development while also having professional experience with Shopify, Duda, Magento, Drupal, Joomla, Wix, and other website platforms.
I work closely with SEO specialists, designers, content teams, marketers, and account managers to transform requirements into reliable, responsive, search-friendly websites.
Frontend Development
HTML5, CSS3, JavaScript, jQuery, AJAX, Bootstrap and responsive
website implementation.
Backend Development
PHP, MySQL, custom WordPress functionality, theme modifications,
troubleshooting and integrations.
Technical SEO
Schema markup, redirects, canonicalization, indexing,
internal linking and Core Web Vitals.
Analytics & Tracking
Google Analytics 4, Google Tag Manager, Google Search Console
and conversion tracking implementation.
Technical Skills
Tools and technologies I work with.
A multidisciplinary development stack covering CMS development, frontend, backend, technical SEO, analytics, hosting and website operations.
02
Development
- PHP
- HTML5
- CSS3
- JavaScript
- jQuery
- AJAX
- MySQL
- Bootstrap
- Responsive Design
03
Technical SEO
- Schema.org
- JSON-LD
- 301 Redirects
- Canonical Tags
- Indexing
- Internal Linking
- Technical QA
- SEO Implementation
04
Analytics & Tracking
- GA4
- Google Tag Manager
- Search Console
- Google Ads Tracking
- Conversion Tracking
- Event Tracking
05
Performance & Hosting
- Core Web Vitals
- PageSpeed
- Cloudflare
- DNS
- SSL
- cPanel
- FTP
- Website Migration
- Deployment
06
SEO & QA Tools
- SEMrush
- Screaming Frog
- Browser DevTools
- Photoshop
- Cross-browser QA
- Mobile QA
- Troubleshooting
Experience
Professional experience.
Over a decade of experience supporting digital agencies, marketing teams and business websites.
2026 — Present
Web Developer / Website Operations Support
Lux Marketing LLC
Website development and operations support focused on Duda CMS, responsive website implementation, technical QA, launch readiness, forms, lead generation, GA4/GTM coordination, technical SEO implementation and multi-client website support.
2022 — 2025
Web Developer
Social SEO · Colorado Springs
Developed, maintained and optimized client websites while collaborating with SEO, content and marketing teams. Responsibilities included WordPress development, website updates, troubleshooting, technical SEO implementation, analytics tracking and performance optimization.
2017 — 2022
Web Developer
Local SEO Search Inc. · Toronto
Built and maintained websites for business clients while implementing responsive layouts, WordPress functionality, SEO requirements, website fixes, migrations and ongoing technical maintenance.
2020 — 2022
Freelance Web Developer
Cogal Digital Agency · Lisbon
Provided freelance website development and technical support for digital projects including website builds, WordPress customization and website maintenance.
2013 — 2017
Web Developer / IT Administrator
Digital Search Group · Cebu
Developed websites and supported internal IT operations, website hosting, troubleshooting, maintenance and digital marketing-related technical requirements.
2012
Freelance Web Design & Development Tutor
Freelance
Provided web design and development instruction covering the fundamentals of creating and maintaining websites.
2011 — 2012
Encoder
SAM MARKETING
Supported data processing and administrative operations before transitioning into professional website development.
Selected Work
Websites I've worked on.
Selected website projects from my professional development experience.
Bloor West Dentistry
Professional dental website project focused on responsive development, website implementation and user experience.
Luxury Diamond Labs
Website development project for a luxury-focused business with responsive implementation and modern web presentation.
The Business Sphere
Business-focused website development and implementation project with responsive and search-friendly structure.
Dental Health
Healthcare website project involving responsive development, content implementation and website optimization.
Direct Bed
E-commerce and business website development project included within my professional portfolio.
Preston Chiropractic Clinic
Healthcare-focused website development project designed to support local visibility and client conversion.
What I Do
Website development services.
01
WordPress Development
Custom WordPress websites, Elementor, Divi, ACF, WooCommerce, theme customization, PHP functionality and troubleshooting.
02
Website Redesign
Modernization of outdated websites with responsive layouts, better UX, cleaner design and improved performance.
03
Figma to Website
Convert approved designs into responsive, functional and production-ready websites.
04
Technical SEO
Technical SEO implementation including schema, redirects, canonical tags, indexing fixes, metadata and internal links.
05
Speed Optimization
Core Web Vitals improvements, caching, image optimization, JavaScript/CSS optimization and PageSpeed troubleshooting.
06
Analytics & Tracking
GA4, GTM, Search Console, Google Ads conversion tracking, contact-form tracking and event implementation.
07
Website Maintenance
Ongoing website updates, bug fixes, plugin maintenance, technical troubleshooting, QA and website support.
08
Hosting & Migration
Website migration, DNS configuration, SSL, Cloudflare, hosting setup, domain configuration and deployment.
09
Integrations
Forms, lead generation, CRM integrations, email marketing, payment gateways, APIs and third-party website integrations.
Education
Education & professional development.
2013 — 2014
Bachelor of Science in Information Technology
University of Cebu
2004 — 2006
Computer Technician
Interface Computer College
2001 — 2002
Computer Operation
Helping Foundation Inc.
Shopify Theme Development
July 2021
SEMrush Mobile SEO
January 2020
SEMrush SEO Fundamentals
August 2019
Social Media Marketing Training
October 2016
Let's Work Together
Have a website project in mind?
Whether you need a new WordPress website, a website redesign, technical SEO implementation, website maintenance, performance optimization or ongoing development support, feel free to get in touch.