If your Shopify, HubSpot CMS, or WordPress site is slow, hard to update, buggy, or too dependent on developers, I can help you fix the real problem without adding more technical mess.
I work with agencies, ecommerce brands, and marketing teams that need reliable development beyond basic content edits: clean implementation, troubleshooting, performance improvements, reusable modules, flexible templates, and CMS/ecommerce structures their team can actually manage.
I bring 13+ years of hands-on web development experience and 8,800+ hours on Upwork across Shopify, HubSpot CMS, WordPress, and WooCommerce projects for US-based agencies and ecommerce brands.
Common projects I can help with:
- Shopify theme improvements, custom sections, templates, product page updates, metafields/metaobjects, and product-related functionality
- HubSpot CMS modules, HubL/HubDB components, landing pages, blog/resource templates, and dynamic front-end builds
- WordPress and WooCommerce fixes, custom implementation, reusable content components, and theme/plugin adjustments
- Performance improvements, Core Web Vitals cleanup, image/media optimization, and front-end technical fixes
- Technical SEO implementation across templates, content structure, metadata, schema, and internal linking support
- Debugging complex layout, responsive, UI, JavaScript, Liquid, HubL, PHP, and CSS issues
- Ongoing support for launches, site updates, production fixes, and improvements inside existing codebases
I’m used to working inside active client projects, existing codebases, and fast-moving environments where quality, clarity, and reliability matter. I can jump into a project, identify what needs to be fixed or improved, and move it forward efficiently.
I also use AI-assisted workflows where appropriate to speed up research, troubleshooting, and implementation, while keeping quality control and technical decisions grounded in hands-on development experience.
If you’re looking for a developer who can contribute quickly and solve real technical problems across Shopify, HubSpot, and WordPress, let’s talk.
Shopify
HubSpot
WordPress
JavaScript
Technical SEO
Performance Optimization
Front-End Development
HTML
CSS
React
Liquid
Shopify Theme
Shopify Templates
Theme Customization
Responsive Design
Web Development
CMS Development
Troubleshooting
Ecommerce Website
Website Optimization
Jesus D.
San Cristobal, Venezuela
$20/hr
5.0
15 jobs
Need a developer who can improve conversions (not just “build pages”) across Shopify, WordPress, and Webflow? 👨🏻💻📈
I’m a Top Rated eCommerce web expert focused on CRO-driven development reducing friction, improving UX, and implementing changes that move key metrics like add-to-cart, checkout starts, and lead submissions.
I’ve delivered 60+ projects for brands and agencies worldwide, helping teams build, scale, and optimize high-performing websites with clean, efficient, and maintainable code.
Clients usually come to me after dealing with:
• 🤝 Freelancers who need constant hand-holding or don’t take ownership
• 🎯 Sites that look good but don’t convert (or don’t load fast enough)
• 🧩 Messy themes/builds that are hard to maintain and break easily
• ⏳ Missed deadlines, unclear communication, or inconsistent quality
What I do (CRO + implementation)
•CRO-focused improvements for PDPs, landing pages, and key user flows
•Speed & Core Web Vitals optimizations to reduce drop-offs
•Ongoing maintenance, bug fixing, and iterative improvements
•Tracking-ready implementations (so results can actually be measured)
Development expertise
🛍️ Shopify
•Custom theme development (Liquid, HTML, CSS, JS)
•Section-based builds & reusable components
•Theme customization, store optimization, and integrations (apps/APIs)
•Performance & technical SEO improvements
🌐 WordPress
•Elementor builds & customization
•Speed optimization, maintenance, and reliability improvements
•WooCommerce support
💡 Webflow
•Fully responsive builds with CMS collections
•Animations/interactions
•Technical SEO setup & performance optimization
•Automation & lifecycle support (optional, but powerful)
To support conversion beyond the website, I also work with Klaviyo, Mailchimp, HubSpot, and GoHighLevel to build/optimize workflows such as:
•lead capture → segmentation/tagging → follow-up sequences
•abandoned cart / post-purchase / win-back automations
•CRM pipelines, lead routing, and webinar/appointment workflows
How I work
•Transparent communication (weekly updates + async collaboration)
•Clear scope, reliable delivery, and real ownership
•Long-term maintainability (clean, scalable, documented work)
💬 Send me your website URL + your main goal, and I’ll reply with the best next steps to improve conversion.
🔍 Profile Match Keywords
(For Upwork Algorithm – Nothing to see here!)
Shopify developer, Shopify expert, Shopify theme developer, Liquid, Shopify custom sections, Shopify optimization, Shopify store setup, Shopify eCommerce, Shopify Plus, WordPress developer, WordPress expert, WooCommerce developer, Elementor, PHP, Webflow developer, Webflow expert, Webflow CMS, Webflow animations, responsive Webflow, HTML5, CSS3, JavaScript, front-end developer, website optimization, performance optimization, SEO, GTM integration, API integrations, eCommerce developer, custom web development, theme customization, cross-browser compatibility, site speed optimization, mobile responsive, front-end performance, technical SEO, modern web development, scalable websites, digital experience, clean code, pixel perfect development, remote collaboration, English-Spanish bilingual.
Elementor
Shopify
Shopify Plus
Shopify Website Design
Shopify Development
Shopify SEO
Shopify Apps
WordPress
WordPress Website
WordPress Development
WordPress Landing Page
WordPress e-Commerce
WordPress Optimization
Webflow
Conversion Rate Optimization
Remix
CMS Framework
Page Builder
A/B Testing
Framer
Aaron B.
Venezuela, Trujillo, Venezuela
$25/hr
5.0
72 jobs
I specialize in building high-converting Shopify experiences through custom theme development, app integrations, performance optimization, and user-focused design. My goal is not just to create visually appealing stores, but to develop scalable ecommerce solutions that improve user experience, increase conversions, and help brands grow.
With experience across Shopify, Next.js, React, WordPress, and modern frontend technologies, I help businesses create fast, optimized, and conversion-focused online stores tailored to their brand and operational needs.
What I Can Help You With:
✅ Custom Shopify Theme Development
✅ Shopify App Integration & Custom Features
✅ Shopify Store Optimization & CRO
✅ Cart Drawer, Bundles & Upsell Functionality
✅ Responsive Ecommerce Design
✅ Landing Pages & Sales Funnels
✅ Shopify Performance & Speed Optimization
✅ Shopify UX/UI Improvements
✅ Shopify Store Migration & Setup
✅ API & Third-Party Service Integrations
✅ Klaviyo & Email Marketing Integrations
✅ Custom Sections & Liquid Development
✅ Next.js & React Web Applications
✅ WordPress & WooCommerce Development
✅ SEO-Friendly Development
✅ Ongoing Maintenance & Technical Support
Why Clients Work With Me:
✔ Ecommerce-Focused Development
I understand both the technical and business side of ecommerce, helping brands improve functionality while increasing conversion opportunities.
✔ Strong Communication & Reliability
I maintain clear communication throughout the project and focus on delivering quality work on time.
✔ Problem-Solving Mindset
From custom Shopify functionality to frontend UX improvements, I enjoy solving complex challenges and building scalable solutions.
✔ Long-Term Collaboration
I aim to build long-term partnerships with clients by providing dependable support and continuous improvements.
If you’re looking for a developer who can help you build, optimize, or scale your Shopify store with custom solutions and modern ecommerce strategies, feel free to send me a message. I’d be happy to discuss your project.
Shopify
React
JavaScript
WooCommerce
Website Customization
Liquid
Shopify Development
Ecommerce Website Development
Next.js
Edwin abraham C.
Cagua La Vieja, Venezuela
$15/hr
4.8
9 jobs
🌟 Edwin Castellano - WordPress SEO Expert, WordPress Site Builder, and Web Designer 🌟
🎨 Creating websites is my passion! 😊
With over 6 years of experience in WordPress, I have developed more than 350 impactful websites using tools like WordPress, WooCommerce, Elementor Pro, Divi, and more. I focus on creating intuitive sites and always stay updated with the latest technological trends.
Here’s what I can do for you:
✅ Website building and design in WordPress
✅ Creation of online stores
✅ SEO optimization for your site
✅ Troubleshooting WooCommerce issues
✅ Website migration
✅ Site performance acceleration
✅ Theme customization
✅ Error resolution
✅ SSL configuration
✅ Unique theme design
✅ Custom plugin development
✅ SEO enhancement
✅ E-commerce solutions
✅ Front-end and back-end management
✅ Multisite configuration management
✅ Creation of multilingual solutions
✅ Site transfers between hosts
My skills include:
✅ Mobile responsive design
✅ Plugin development
✅ Speed optimization
✅ HTML/CSS/JavaScript
✅ Bug fixing
✅ SEO optimization
✅ Site migration
What sets me apart:
☑️ Flexibility and dedication
☑️ Solutions tailored to your business
☑️ Commitment to your growth
☑️ Meticulous attention to detail
☑️ Constantly updated on trends
Let’s make your ideas a reality! Feel free to contact me anytime for assistance or to discuss a project.
Best regards,
Edwin Castellano 😊
Elementor
CSS
CSS 3
WordPress
WordPress Plugin
Divi
WordPress Theme
HTML
WooCommerce
WordPress Development
Web Design
Ecommerce
Graphic Design
Leonardo R.
San Diego, Venezuela
$30/hr
4.5
143 jobs
🥇 Top Rated Plus | 7+ Years Experience | 100+ Projects Delivered
I'm Leonardo, a Web Designer with 7 years of experience designing and building custom websites that are pixel-perfect, fully responsive, and optimized for any device. I don't use templates. I build everything from scratch to match your brand and goals.
I've worked with clients across eCommerce, SaaS, healthcare, construction, sports, education, technology, and B2B service industries. I'm also Ceros certified with an Onyx Certificate of Mastery, placing me in the top ~0.3% of Ceros users worldwide.
What I do:
🔸 Custom website & landing page design
🔸 UI/UX design in Figma
🔸 Interactive content & experiences (Ceros)
🔸 High-speed landing pages (Replo)
🔸 WordPress builds (Elementor, Oxygen, Kadence)
🔸 Webflow development
My process:
1. Briefing – Understand your goals, audience, and brand.
2. Wireframing – Define structure and user flow before touching visuals.
3. Design – Create polished, conversion-focused layouts in Figma.
4. Development – Build it out in Webflow, Ceros, Replo, Oxygen, or Elementor.
Why work with me?
✅ Top Rated Plus on Upwork (top 3% globally)
✅ 100+ projects delivered for international clients
✅ Ceros Onyx Certified (top ~0.3% of users)
✅ Obsessive about spacing, hierarchy, and mobile optimization
✅ Clear communication and reliable delivery
✅ One person for design and development
Tools I use:
Figma, Adobe Illustrator, Webflow, Ceros, Replo, WordPress, Kadence, Oxygen, Elementor
Industries served:
eCommerce, SaaS, healthcare, construction, sports, education, technology, home services, B2B, and more
Keywords:
UI/UX Design, Web Design, Landing Page Design, Responsive Web Design, Mobile Optimization, Figma, Webflow, Ceros, Replo, WordPress, Kadence, Oxygen Builder, Elementor, Interactive Design, No-Code Development, Conversion Design, B2B Websites, Custom Websites, Pixel Perfect, User Flow, Wireframing, Prototyping
Let's talk about your project. Invite me to your job or send me a message.
Elementor
Adobe Photoshop
Adobe Illustrator
Figma
Illustration
Infographic
Web Design
UX & UI
Interactive Design
Webflow
Interactive Mockup
Interactive Prototype
Photo Editing
Website Redesign
Framer
Claude
Luis Fernando V.
San Cristobal, Venezuela
$30/hr
5.0
2 jobs
I am a Senior Fullstack Developer with 7+ years of experience building, maintaining, and scaling enterprise-grade SaaS platforms, high-traffic CMS solutions, and global eCommerce stores. I bridge the gap between robust backend architectures and dynamic frontends to deliver clean, scalable, and business-aligned products.
Where I Bring the Highest Value:
- AI Integrations & Automation: Expert in connecting OpenAI APIs and Python services to build intelligent, production-ready workflows. Recently spearheaded AI-driven solutions within a multi-tenant telehealth platform to streamline provider tasks and automate critical data pipelines.
- SaaS & Backend Engineering: Strong proficiency in PHP/Laravel, Node.js, and Python. Experienced in handling complex Stripe webhook matrices, event-driven queues, scheduled jobs, and secure JWT-authenticated APIs.
- High-Traffic CMS & eCommerce: Developed 15+ custom themes and plugins for WordPress (including WordPress VIP), WooCommerce, Shopify, and PrestaShop. Specialized in Web Performance Optimization (WPO) to keep sites fast and stable under massive concurrent traffic.
- Dynamic Frontends: Crafting fast, responsive, and pixel-perfect UIs using Vue.js, Angular, TypeScript, and modern styling tools like TailwindCSS/SCSS.
Whether you need to clear technical debt, build a multi-tenant platform from scratch, or turn static processes into dynamic, AI-powered systems, I focus on delivering technology with a real commercial impact.
Let’s hop on a brief call to discuss your project requirements and how we can achieve your goals. Click the "Invite" button to get started!
HTML5
CSS 3
JavaScript
Adobe Photoshop
Adobe Illustrator
PHP
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