PHP / BACKEND / INTEGRATIONS

Klemen Traven

PHP Backend Developer

Building web applications, connecting business systems, and automating workflows.

Get in touch Explore experience
01 / ABOUT

About Me

I'm a backend-focused software developer with several years of professional experience building and maintaining web applications, integrations, and business systems.

Most of my experience is in PHP, working with frameworks such as Laravel and Silverstripe. I've worked on custom application features, CRM and ERP integrations, APIs, data migrations, and workflow automation.

I enjoy understanding how an application works, how different systems should communicate, and how to solve development problems in practical ways. I care about clear, maintainable code and the business logic behind the features I build.

I use AI-assisted development tools to explore solutions, speed up implementation, and support debugging, while remaining responsible for my code and decisions.

02 / EXPERIENCE

Professional experience

Employment history and the work I contribute to across web platforms and business systems.

Innovatif

January 2025 – Present

Backend Developer

Full-time

Ljubljana, Slovenia · Hybrid

Developing and maintaining backend functionality for web platforms, primarily using PHP and Silverstripe.

  • Implement custom features and business logic for existing web applications.
  • Improve search and platform functionality, and work on data migrations.
  • Integrate APIs and external services, including work across PrestaShop projects.
  • Collaborate with the development team using Git and Jira.
  • PHP
  • Silverstripe
  • JavaScript
  • HTML
  • APIs
  • Git
  • Jira
  • PrestaShop

Positiva Solutions Ltd

January 2022 - December 2024

Full Stack Developer

Internship to full-time

Ljubljana, Slovenia

Developed and maintained PHP/Laravel applications, contributing to backend features, CRM and ERP integrations, APIs, workflow automation, and CMS/e-commerce projects.

  • Implemented application features based on business requirements.
  • Worked on CRM and ERP integrations, including ActiveCampaign and HubSpot.
  • Connected systems through APIs, supporting data exchange and workflow automation.
  • Contributed to custom CMS and e-commerce projects, including maintenance and improvements.
  • PHP
  • Laravel
  • REST APIs
  • ActiveCampaign
  • HubSpot
  • CRM / ERP
  • WooCommerce
  • CMS development

SE-TECH, IT Support and Solutions

October 2021 – September 2022

PHP CMS Developer

Part-time

Remote

Developed and maintained WordPress and WooCommerce websites, including custom features and Bullhorn CRM integrations.

  • Built and maintained custom functionality for WordPress and WooCommerce sites.
  • Integrated websites with Bullhorn CRM.
  • Worked on CMS migrations, frontend adjustments, and performance improvements.
  • WordPress
  • WooCommerce
  • PHP
  • Bullhorn CRM
  • CMS migrations
  • Frontend development
03 / TOOLKIT

Technical skills

A practical toolkit shaped by the applications, integrations, and platforms I work with.

Backend development

  • PHP
  • Laravel
  • Silverstripe

Integrations & CRM

  • REST APIs
  • CRM / ERP
  • ActiveCampaign
  • HubSpot
  • Bullhorn CRM

CMS & e-commerce

  • WordPress
  • WooCommerce
  • PrestaShop
  • CMS development
  • CMS migrations

Databases

  • MySQL
  • PostgreSQL

Frontend development

  • JavaScript
  • jQuery
  • HTML
  • CSS
  • LESS
  • Bootstrap

Development & project tools

  • Git
  • Jira
  • Teamwork

AI-assisted development

  • Claude Code
  • Cursor
04 / SELECTED WORK

Selected work

Representative contributions to real products and business systems.

01

Automotive · CRM & marketing automation

Automotive CRM & Marketing Automation Integrations

Contributed to Laravel integrations connecting CRM and ERP systems with marketing automation workflows through REST APIs.

  • Laravel
  • ActiveCampaign
  • CRM / ERP
  • REST APIs
  • Workflow automation
02

Healthcare · e-commerce & automation

Healthcare E-commerce, CRM & Automation Solutions

Contributed to healthcare e-commerce work focused on CRM, workflow automation, and data migrations.

  • E-commerce
  • CRM
  • Automation
  • Data migrations
03

Backend development

Backend web applications

Built and maintained backend features across web platforms, from custom business logic to API integrations and database-backed applications.

  • PHP
  • APIs
  • Laravel
  • Integrations
  • Databases
04

CMS & e-commerce

CMS and e-commerce development

Implemented and maintained custom functionality and integrations across CMS and e-commerce platforms for varied business requirements.

  • WordPress
  • WooCommerce
  • PrestaShop
  • Joomla
05 / CONTACT

HAVE A PROJECT OR ROLE IN MIND?

Let's connect.

Interested in discussing backend development, web applications, integrations, or automation? Feel free to get in touch.

hello@klementraven.comLinkedIn