Sonatha Marsaor Tua Tambunan

Skills

Full-Stack Development, Web Application Development, Backend Development, Frontend Development, System Design, Software Architecture, REST API, Java, Spring Boot, PHP, Laravel, JavaScript, TypeScript, Node.js, Angular, Vue.js, HTML5, CSS/SCSS, PostgreSQL, SQL, JPA/Hibernate, DTO Design, Git, Flutter, Mobile App Development, Python Automation, Web Scraping, Dashboard Automation, Telegram Bot Development, Data Visualization, Tableau, Google Looker Studio, Technical Writing, Linux Server Administration, Government Systems (GovTech), Maintenance & Support

About

Senior Full-Stack Engineer with 9+ years of professional experience (web development since 2009; focused since 2016) delivering production-grade systems used at national scale in Indonesia—especially for government and GovTech environments. I build secure, maintainable applications end-to-end: system design, REST APIs, database modeling, and modern UI. My core stack includes Spring Boot, Angular, Laravel, Node.js, and PostgreSQL, with Flutter for mobile apps and Python for automation (including web crawling and workflow triggers). I also support data visualization using Tableau and Google Looker Studio, and I can produce clear technical documentation (e.g., Linux server management topics). I’m reliable for both new builds and long-term maintenance—clean code, strong communication, and on-time delivery.