Services
With 15+ years of IT experience, I deliver Shopify development, custom applications, DevOps/AWS, and security work that improves speed, reliability, and conversion.
E-Commerce
Elevate your online store with customized solutions, including Shopify development and advanced integrations. I specialize in building seamless, user-friendly shopping experiences that maximize revenue and drive growth.
Custom Application Solutions
Whether you're automating workflows, enhancing warehouse operations, or creating scalable business tools, I design and develop custom applications tailored to your specific needs using Node.js, Vue.js, and more.
Building Microservices
Simplify complex systems with efficient, modular microservices. From parsing data to integrating third-party APIs, I deliver lightweight and scalable solutions to enhance performance and functionality.
AWS & DevOps
Optimize your infrastructure with AWS expertise, including cloud architecture, monitoring, and automation. I implement DevOps practices like CI/CD pipelines, Docker containers, and server provisioning for streamlined operations.
Web Security
Safeguard your online presence with robust web security solutions. From HTTPS and API security to server hardening and monitoring, I ensure your applications and data remain secure from evolving threats.
Linux System Administration
Leverage my expertise in Linux system administration for seamless server setup, optimization, and management. From deploying Nginx to configuring Docker, I ensure your systems run efficiently and securely.
Explore
Dedicated pages for Shopify, custom apps, DevOps, and real-world results.
Shopify Development
Theme customization, performance optimization, custom sections, and storefront UX improvements.
View Shopify servicesCustom Web Applications
Node.js/Vue.js apps, integrations, dashboards, automations, and internal tools.
Explore custom appsDevOps & AWS
Docker, CI/CD, monitoring, backups, security hardening, and reliable cloud infrastructure.
See DevOps & AWSShopify Apps
Apps I build to improve checkout, operations, and payments (including UPNify).
Browse appsCase Studies
Selected projects with goals, approach, and outcomes — designed for SEO and credibility.
Read case studiesHow I work
Simple, transparent, and focused on measurable outcomes.
1) Discovery
We define goals, constraints, and success metrics (performance, conversion, automation, reliability).
2) Build & iterate
Fast implementation with regular checkpoints — you always know what’s next and why.
3) Launch & support
Clean handover, documentation, monitoring, and optional ongoing improvements.
Want a quick estimate?
Send a short description of your project and your timeline — I’ll reply with next steps.
Get in touchFAQ
Quick answers about Shopify development, custom apps, and DevOps.
Do you build Shopify stores and custom features?
Yes. I build and optimize Shopify stores, create custom sections, theme enhancements, performance improvements, and integrations (apps/APIs) tailored to your business.
Can you build custom web applications and automations?
Yes. I develop custom applications and automations (Node.js/Vue.js) to streamline operations—billing/invoicing, data parsing, integrations, dashboards, and internal tools.
Do you help with DevOps, AWS, and server reliability?
Yes. I help with AWS architecture, Docker, CI/CD, monitoring, backups, and high-availability setups to keep systems secure and reliable.
Where do you work with clients?
I’m based in Slovenia and work with clients across Slovenia and the EU. Most projects can be done remotely with clear communication and milestones.
Shopify Apps
Tools I build to improve checkout, operations, and payment flows.
UPNify — UPN QR code payments for Shopify
UPNify adds a UPN QR payment code to your Shopify order emails, making bank transfers fast and error-free for customers in Slovenia.
- Generate UPN QR codes automatically from order totals and customer data
- Works directly in email templates (great for “Payment pending” flows)
- Reduces manual errors and speeds up bank transfer payments
Portfolio
Here are some of my works.
About
Our journey of innovation and IT excellence.
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2008-2013
The Early Days
Starting as a freelance developer, I gained valuable experience working on web development projects and software solutions while pursuing my education. During this period, I built custom websites and applications, including the e-commerce platform Chillum, which I developed from scratch using CodeIgniter 2.
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2013-2019
Corporate Experience
During my career in IT companies, I took on roles as a QA Engineer, System Administrator, and Application Developer. I worked on various projects ranging from IP TV systems to building and optimizing e-commerce platforms. At Konverzija d.o.o., I contributed as a software developer and eventually became CTO, leading the IT team and implementing automation solutions.
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2019
The Birth of Davor Pečnik Solutions
I established my company, focusing on delivering custom IT solutions. From developing Shopify-based e-commerce websites to creating innovative software tools, I combined years of experience to offer tailored solutions for my clients.
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2020-Present
Innovating for the Future
My company continues to grow, providing cutting-edge IT services such as e-commerce development, warehouse automation, and cloud architecture design. Today, I specialize in Shopify solutions and broader IT innovations, helping businesses achieve efficiency and scalability.
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Be Part
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About the developer
Davor Pečnik is a Shopify developer and software engineer with 15+ years of IT experience. He builds high-performance Shopify stores, custom web applications (Node.js/Vue.js), and reliable DevOps/AWS infrastructure.
Typical projects include theme and UX improvements, custom Shopify sections and apps, integrations with external services, automation tools for internal workflows, and secure hosting/monitoring setups.
Contact
Tell me what you want to build — Shopify, custom apps, or infrastructure.
Serving businesses in Slovenia and across the EU — including Austria, Germany, Croatia, and Italy. Remote-friendly collaboration with clear milestones.