Hire Shopify Custom App & Integration Developers

Find Shopify developers to build custom apps and integrations that automate workflows and extend store functionality. Get expert help with Shopify APIs, third-party integrations, and scalable custom tools built for performance and long-term growth.

Shopify custom app and integration experts help merchants extend Shopify’s core functionality with tailored solutions built for specific business needs. These developers create custom apps and integrations that automate workflows, connect systems, and support advanced operational logic.

Common services include:
• Custom Shopify app development
• Private and public app creation
• Shopify API and third-party integrations
• Workflow automation and custom tools
• App maintenance and scaling support

Hiring a Shopify custom app developer enables flexibility and automation beyond standard apps. Compare experts and request a free quote in minutes.

Filter Experts26 results
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ML
Matias Lopez
PRO
Front-End Developer
5.0(126 reviews)
$65.00

Argentina

English, Spanish
Development & Troubleshooting,Technical Support & Maintenance,Store Setup & Management,Branding & Design

I have over five years of experience in web development using technologies such as Shopify, Angular, Node.js, JavaScript, React, Vue, MongoDB, MySQL, and PHP. My journey with Shopify started when I joined Hey Carson, now known as 'Shop Experts', successfully completing their trial period. I have gained significant experience in Shopify development. I've worked in complex tasks such as integrating Shopify apps, Shopify Admin API, custom design development, apps extensions development, theme development and much more. I've gained in this past years what I believe to be a solid understanding of Shopify development, which helps me deliver high-quality solutions to the clients I've worked with.

Shopify Apps and Theme Expertise
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EK
Erick Kagai
PRO
Front-End Developer
4.9(45 reviews)
$95.00

Kenya

English
Development & Troubleshooting

Speed & Performance Specialist for Shopify Stores

Your store is slow. I make it fast - and show you exactly how much revenue that speed costs you.

For 15+ years, I've optimized Shopify stores for businesses doing $500K+ monthly. I treat speed as a revenue problem, not just a technical checkbox.

Available Mon-Fri 7am-3pm EST. Flexible scheduling for urgent pre-launch issues.

Key Results:

  • 7→65 mobile score for apparel brand, protecting $18K+ in Black Friday sales

  • 74% faster load times across product pages and checkout

  • 100+ projects delivered for brands in US, Canada, UK, and Australia

What I Fix:

  • Slow product pages killing conversions

  • Checkout delays causing cart abandonment

  • App bloat dragging down performance

  • Speed apps that didn't actually work

How I Work:

  1. Diagnostic audit identifies actual bottlenecks (not guesswork)

  2. Phased implementation - you approve each milestone

  3. 90-day post-launch support

Best Fit: Stores doing $500K+ monthly where slow speed is actively costing conversions.

Shopify Apps and Theme Expertise
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LC
Lautaro Climent
PRO
Front-End Developer
4.9(42 reviews)
$65.00

Argentina

Spanish, English
Development & Troubleshooting,Branding & Design,Store Setup & Management,AI & Tech Solutions,Copywriting & Content
I’m Lautaro Climent, a seasoned web developer and Shopify specialist with over 2 years of experience delivering high-converting, beautifully designed online stores for clients worldwide. As a core member of the ShopExperts team, I’ve led and contributed to projects ranging from complete Shopify migrations to advanced customizations, always focusing on UX/UI best practices and modern e-commerce strategies. My approach blends technical excellence with creative vision: I believe that every brand deserves a digital presence as unique and inspiring as its mission. Whether you’re a startup seeking rapid growth or an established business looking to refresh your online store, I’ll help you unlock your site’s full potential. I specialize in all aspects of modern web development and optimization: From designing and building engaging websites, to customizing user experiences, integrating third-party tools, and ensuring your online presence performs at its best. My approach combines technical expertise with a deep understanding of design and conversion, delivering tailored solutions for businesses of any size. My clients value my clarity, reliability, and my commitment to going the extra mile to achieve outstanding results. I’m passionate about staying ahead of e-commerce trends and turning challenges into growth opportunities. Let’s build the future of your brand, together.
Shopify Apps and Theme Expertise
Customer Stories
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Satish Voddi
PRO
Frontend Engineer
4.8(11 reviews)
$95.00

United States

English
Development & Troubleshooting,Store Setup & Management,Consulting & Strategy

With over eight years of experience as a full-stack Shopify developer, I translate complex technical concepts into user-friendly features that are built on scalable and reliable code.

With a strong eye for design and focus on conversions, I create storefronts that look great and perform.

If you're seeking a collaborator who values performance and long-term partnerships, let's talk.

What I do:

  • Custom features & theme development

  • Convert Figma designs to responsive storefronts

  • Custom apps, APIs, and system integrations

  • UX/conversion improvements

I specialize in:

  • Bundle builders

  • Cart drawers, Upsells

  • Subscriptions optimizations

  • Section rendering API and ajax

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