Mirko Milicevic

● Developed and maintained key features in Ruby on Rails and JavaScript, enhancing platform stability and user experience, contributing to a 25% increase in user engagement. ● Designed and integrated RESTful APIs that improved data synchronization speed by 30%, boosting backend/frontend communication efficiency. ● Improved application performance by implementing Redis caching, reducing server response times by 40%. ● Collaborated with cross-functional teams to deliver timely product updates, which resulted in a 15% growth in dashboard usage metrics. ● Participated in CI/CD processes using GitHub Actions and AWS, accelerating deployment frequency by 20%.

● Led the revamp of the course dashboard interface, improving load performance and interactivity by over 45%, resulting in a 28% increase in learner engagement based on platform analytics. ● Implemented advanced UI components using React.js, Vue.js, and Next.js, contributing to a 35% improvement in component reusability across the learning platform. ● Built and maintained scalable RESTful and GraphQL APIs, enabling seamless integration between learning modules and course progress tracking systems. ● Refactored legacy frontend codebase to TypeScript and introduced Redux with Context API for state consistency, reducing front-end bugs by over 40%. ● Enhanced backend content-delivery workflows using Node.js (Express.js), which decreased response times by 30% for high-traffic endpoints during course enrollment peaks. ● Collaborated in an agile squad to deliver a new learner analytics dashboard, which improved instructor insights and led to a 15% uptick in course completion rates. ● Contributed to the CI/CD process via GitHub Actions, optimizing build times by 20%, and maintained stable deployment pipelines to AWS and Heroku. ● Worked closely with designers and QA to ensure 100% WCAG 2.1 accessibility compliance across newly launched features.

● Developed responsive web applications with React.js, JavaScript, HTML, and CSS, improving user interface load speed by 18%. ● Built and optimized backend APIs in PHP, increasing data processing efficiency by 22% for key client projects. ● Collaborated in Agile teams, contributing to spring planning and peer code reviews, helping reduce bug backlog by 15%. ● Enhanced internal dashboards, boosting user engagement and task completion rates by 20%. ● Utilized Gite for version control and supported CI/CD pipelines to accelerate deployment cycles by 10%. ● Implemented automated testing scripts that improved test coverage and reduced post-release bugs by 12%. ● Assisted in integrating third-party services, which increased application functionality and customer satisfaction by 15%.

● Assisted in development and maintenance of web applications using HTML, CSS, JavaScript and PHP, improving application responsiveness by 15% according to internal performance metrics. ● Collaborated with senior developers to redesign the company’s internal dashboard, increasing user engagement by 20% and streamlining workflow efficiency. ● Participated in Agile team meetings, contributing to sprint planning and peer code reviews, helping reduce bug backlog by 10% during tenure. ● Gained hands-on experience with version control (GIT), debugging, testing and documentation to ensure high-quality deliverables. ● Supported the rollout of a new feature module that enhanced customer reporting functionality, leading to a 12% increase in report generation speed.