Senior PHP Developer (Inbound) - CZ/PL
Core
Design and implement high-concurrency, mission-critical warehouse logic for a logistics platform processing up to 100,000 orders daily, connecting suppliers, merchants, and autonomous robots.
Role type
Senior IC PHP Developer (Backend)
Builds
A distributed logistics platform for order fulfillment, stocking, and shipping.
Domain
Logistics / E-commerce fulfillment
Deliverable
production ML models | product features
Required skills
PHP 8.5, Symfony, Doctrine ORM, MySQL optimization, Docker, Kubernetes, Argo CD, GitLab CI, SQL optimization, system design, race condition handling, HA/failover design
Preferred skills
Domain-driven architecture, open-source contribution, technical documentation
Technologies
PHP 8.5, Symfony 7.4, Doctrine ORM 3, MySQL 8, Docker, AWS, Kubernetes, Argo CD, GitLab CI, PHPStan, PHPUnit, DataDog, Sentry, Opsgenie, Asana
Responsibilities
Design technical architecture for high-concurrency warehouse features; optimize SQL queries for terabyte-scale databases; ensure high availability and autoscaling; participate in strict code review processes; contribute to open-source tools.
Seniority
Senior, hands-on IC