Dejan Hergelic

Dejan Hergelic Senior Full-Stack Developer- Humppila, Forssa, Kanta-Häme, Finland https://www.linkedin.com/in/dejan-hergelic-a/ WORK EXPERIENCE Senior Full-Stack Engineer MATS • Jun 2023 – Present ⚫ Develop custom WordPress themes and plugins using PHP, HTML5, CSS3, JavaScript, and other relevant technologies, ensuring compatibility with modern browsers and mobile devices. ⚫ Developed WordPress templates using several Plugins. ⚫ Customize and extend existing themes and plugins to meet client-specific requirements, enhancing user experience and functionality. ⚫ Implemented responsive web design principles to ensure seamless user experiences across various devices and screen sizes. SKILLS Programming languages: ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ Frontend Frameworks: ⚫ ⚫ ⚫ Senior Full-Stack Engineer Avenga • May 2021 – May 2023 ⚫ Built ERP product using Laravel and React, catering to the specific needs of the organization's clients. ⚫ Architected the application's infrastructure, ensuring scalability, performance, and maintainability. ⚫ Implemented RESTful APIs to facilitate data exchange between front-end and back-end systems. ⚫ Maintained version control using Git and facilitated smooth code deployments using CI/CD pipelines. ⚫ Preparation and review of Unit Test Plan, Unit Testing, Test Results review and other quality related work. Full-Stack Engineer Chirps Chips • Apr 2019 – Apr 2021 ⚫ Developed, and maintained eCommerce website using PHP/Symfony and Apache Kafka. ⚫ Implemented GraphQL to improve the efficiency and flexibility of API queries. PHP C/C++/C# JavaScript TypeScript Node.js Python HTML/HTML5 CSS ⚫ ⚫ jQuery React.js Next.js Angular Vue Backend Frameworks: ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ Laravel WordPress Symfony Code Igniter YII Express.js ASP.NET Spring Boot Database: ⚫ ⚫ ⚫ ⚫ ⚫ MySQL PostgreSQL MsSQL MongoDB Oracle ⚫ ⚫ ⚫ Worked closely with the DevOps team to automate build and deployment processes using Jenkins, Docker, and Kubernetes. Mentored and provided technical guidance to junior developers on best practices and design patterns. Participated in Agile/Scrum ceremonies, including stand-ups, sprint planning, and retrospectives. Web Services: ⚫ ⚫ ⚫ ⚫ Cloud Services: ⚫ Full-Stack Developer ⚫ Vincit • Jun 2016 – Apr 2019 ⚫ Built several ERP/CRM products and Company Financial Management Software products using Laravel, Symfony, ASP.Net Core, Express.js and Spring Boot. ⚫ Created responsive and user-friendly UI using React, Angular, Tailwind CSS and Material-UI. ⚫ Integrated various APIs, including payment gateways, third-party services, and data providers, to enhance functionality and streamline processes. ⚫ Participated in Agile/Scrum ceremonies, including stand-ups, sprint planning, and retrospectives. ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ Upwork • Oct 2012 – Jun 2016 ⚫ Developed lots web applications and various types of projects and satisfied various client’s need, daily design changes. ⚫ Developed E-Commerce Web Sites, Mobile App Backends, Admin Dashboards using jQuery, PHP, JavaScript and MVC frameworks including ASP.NET, Django , Laravel/Symfony/Yii/Drupal , Ruby on Rails. AWS GCP Azure Docker Kubernetes Operating Systems: Windows XP Linux Mac OS Test Frameworks: ⚫ Freelancer Web Developer REST/JSON GraphQL Web API Postman ⚫ PHPUnit JEST Enzyme Jasmine Mocha Version Control Tools: ⚫ ⚫ ⚫ GitHub GitLab BitBucket Agile Methodology: Jenkins Jira Trello ⚫ ⚫ ⚫ Education Language University of Turku Computer Science Bachelor’s Degree Mar 2008 - Feb 2012 Finish: Native English: Fluent 2 Certification WordPress Certified Developer Automattic Issued May 2019 – Expired Apr 2020 Laravel Certified Developer Automattic Issued May 2019 – Expired Apr 2020 MySQL Database Administrator Certification Automattic Issued May 2019 – Expired Apr 2020 3