Matej Ivan L.

Hi there! I'm Matej, a Full-Stack Web Developer with approximately 5 years of professional experience, specializing in building robust enterprise applications. My primary focus is on developing custom WMS (Warehouse Management Systems), ERP (Enterprise Resource Planning), and DMS (Document Management Systems). My core expertise is backend architecture using Java and the Spring ecosystem, seamlessly connected to dynamic, user-friendly frontends. I bridge the gap between complex business logic and intuitive user experiences. 💻 Core Tech Stack: • Backend: Java (up to Java 17), Spring Core, Spring Boot, RESTful APIs, Apache Tomcat • Frontend: JavaScript, HTML5, CSS3, jQuery, JSP • Databases & Tools: MySQL, H2, Flyway, Hibernate/JPA, Git/GitHub, Phabricator, Reposilite, Buildkite • Familiar with: React Native, Docker, Grafana, AWS environments 🔗 API Integrations & Advanced Features: I have extensive experience building scalable REST APIs (including web-to-mobile app communication) and integrating critical external services into existing software. Notable integrations include: • Automated E-Invoicing APIs (B2B / Government compliant billing integration) • Google Workspace APIs (Calendar, Authentication) • Dropbox API & Luceed API documentation integration • Three.js for interactive 3D warehouse visualizations and spatial inventory mapping 📈 Additional Skills: Beyond custom enterprise software, I also have practical experience with WordPress (Elementor) development and local SEO optimization, having successfully ranked local business websites in the top 3 Google search results. Whether you need to build a system from scratch, integrate complex 3rd party APIs, or maintain and scale an existing enterprise application, I deliver clean, documented, and efficient code. Let’s connect and discuss how I can bring value to your next project!