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Mid-Senior Backend Engineer Nord Security. The Nord Checkout . team is a cross-functional team that develops and maintains one of the business-critical services responsible for the final step of the user purchase journey. Our daily work includes scaling our services and introducing new features to support a secure, fast, and pleasant user experience. On top of that, we help other teams' development initiatives, by providing access to user purchase data.. Main Responsibilities. Design and develop highly scalable, resilient, and secure microservices;. Write high-quality, tested, maintainable code and perform well under load;. Collaborate with your team members, QA, DevOps, and security teams on day-to-day tasks;. Ship new features and fixes successfully and on time;. Create technical designs and write good documentation;. Perform R&D operations and find solutions to new and challenging problems we encounter;. Demonstrate ownership of tasks from start to finish;. Constantly learn and grow professionally;. Core Requirements. In-depth knowledge of the PHP language.. Proven experience building and integrating with REST API microservices;. Adhering to good system design patterns.. Knowledge of good code design patterns and OOP principles.. Deep relational DB knowledge (preferably MySQL);. Good working knowledge of NoSQL databases (preferably Redis). Experience with message queues (preferably RabbitMQ). . Experience working with Git and source code repositories (preferably GitLab). Tools You Will Use. PHP;. Go;. MySQL;. Redis;. RabbitMQ;. Grafana;. Docker;. Kubernetes;. Prometheus;. Salary Range. Gross Salary 17100 - 32900 PLN/Month.