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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 services

Custom Web Applications

Node.js/Vue.js apps, integrations, dashboards, automations, and internal tools.

Explore custom apps

DevOps & AWS

Docker, CI/CD, monitoring, backups, security hardening, and reliable cloud infrastructure.

See DevOps & AWS

Shopify Apps

Apps I build to improve checkout, operations, and payments (including UPNify).

Browse apps

Case Studies

Selected projects with goals, approach, and outcomes — designed for SEO and credibility.

Read case studies

Cookies

How cookies are used on this site and how consent works.

Cookie policy

How 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 touch

FAQ

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.

Snow Monkey Shopify store – custom Shopify theme development and performance optimization
Snow monkey
Shopify
Plant Immortelle Shopify store – custom Shopify development for skincare brand
Plant Immortelle
Shopify
Mikrozelenje Šebenik Shopify store – e-commerce setup and custom sections
Mikrozelenje
Shopify
Expeditus Systems website – Shopify development and storefront customization
Expeditus Systems
Shopify
Bittergreen Shopify store – theme customization and conversion-focused UX
Bittergreen
Shopify
Cokonap Shopify store – e-commerce storefront setup and custom features
Cokonap
Shopify
Furam zase Shopify store – Shopify theme customization and performance work
Furam zase
Shopify
Lost Trails website – Shopify storefront build and brand implementation
Lost Trails
Shopify
SkinFairytale Shopify store – custom development and optimization
SkinFairytale
Shopify
Lunibu Shopify store – custom Shopify development for Montessori toys brand
Lunibu
Shopify
Rootreat Shopify store – Shopify theme improvements and UX optimization
Rootreat
Shopify
Ličila.si (Pink Panda) – e-commerce platform leadership and custom systems
Pinkpanda
CTO / Software developer
Delatis Shopify store – skincare e-commerce setup and optimization
Delatis
Shopify
Moj račun web app – custom Node.js and Vue.js invoice system
Moj račun
NodeJs & VueJs
SIEL – application development and integration work
Siel
Application development
WeTeh – microservice for CSV/XML parsing and data transformation
WeTeh
Development of microservice app
Chillum – custom e-commerce platform built with CodeIgniter
Chillum
Custom web store

About

Our journey of innovation and IT excellence.

  • ...

    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.

  • ...

    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.

  • ...

    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.

  • ...

    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.

  • Be Part
    Of Our
    Story!

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.

Company

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