Milan Z.

Hi, thanks for your interest in my skills. Here is, in short, how I can help: - Write clean, testable code using software design patterns such as SOLID, using PHP, JavaScript, and TypeScript, and any framework based on these languages - Do code review and suggest improvements - Refactor and/or upgrade your existing code base to the latest versions and/or improve testability - Design and architect your application based on business requirements - Build/improve CD/CI and developer experience - Organize and write tests Since 2001, I have developed a comprehensive range of applications and systems - from desktop software and web applications to mobile apps and social platforms - serving startup companies, small businesses, and agencies across Serbia, the EU, and the USA. My expertise spans the complete project lifecycle from concept to production, with a strong focus on delivering scalable, maintainable solutions. Core Technical Expertise Backend Development & Frameworks Laravel and Livewire (daily use since 2019) for modern, reactive web applications Extensive Yii framework experience (daily use since 2010) Advanced PHP with strong OOP and DDD principles Node.js and TypeScript for full-stack JavaScript development Emerging proficiency in Rust for performance-critical applications Frontend & JavaScript Ecosystem Advanced JavaScript knowledge across multiple frameworks: Vue.js, Quasar, Alpine.js, and React.js Server-side JavaScript with Node.js, Express.js, Nest.js TailwindCSS Database & Performance Optimization Expert-level MySQL/PostgreSQL/SQLite and RDBMS design and optimization NoSQL experience with MongoDB Caching strategies using Memcached and Redis Database optimization for high-traffic applications Infrastructure & DevOps Cloud infrastructure management on AWS, DigitalOcean, and Hetzner Server provisioning and configuration DevOps automation using Ansible, Vagrant, Docker and Docker Compose Process optimization through automation, wherever possible Professional Approach I write clean, testable code and have extensive experience mentoring junior developers, fostering collaborative and growth-oriented team environments. My problem-solving skills enable me to work effectively both independently — taking projects from initial concept through to production — and as part of larger development teams. I specialize in creating scalable backend systems that can handle high-traffic demands while maintaining code quality and performance. Additionally, I have significant experience with refactoring and upgrading legacy codebases, utilizing tools like Rector for automated code modernization and employing test-driven development approaches to ensure reliability throughout the upgrade process. My approach emphasizes automation to optimize development processes and reduce manual overhead. With over two decades of experience, I'm quick to understand and implement new ideas, adapt to emerging technologies, and deliver solutions that meet both technical requirements and business objectives. I'm available for both project-based work and hourly engagements (tracked via UpWork's time tracker). Feel free to reach out to discuss your project requirements.