- 6+ years of PHP projects developer experience; - Proficiency at OOP principles (including DRY / SOLID / KISS); - Understanding and efficient usage of design patterns; - Project / tasks estimation (concept based, milestone, roadmap, detailed); - Agile / Scrum / Kanban (both team management & development); - Test-driven development (real unit- & acceptance- tests usage everyday); - High load optimization (both game backend and enterprise system solutions); - Scalable architecture solutions (both horizontal & vertical); - Linux administration (system, docker, kubernetes); - Interested in algorithms and mathematical analysis