Senior Backend Software Engineer (PHP) Location: Dublin (Hybrid) Salary: + Bonus + Benefits Tech Stack: PHP 7/8, Symfony, MySQL, REST APIs, CI/CD An established European product company is hiring a Senior Backend Engineer to join their engineering team in Dublin. This team owns a core domain responsible for powering the search and product catalog systems behind a high-traffic consumer platform used across travel, food, wellness, and retail experiences. This is a high-impact role where you'll work closely with engineering, product, and architecture teams to build and optimise backend services, search performance, and catalog architecture that directly impact millions of users across Europe. What You'll Be Doing: Develop and maintain robust, scalable services in PHP (7/8) using Symfony Contribute to the design and evolution of backend architecture across search and catalog systems Build and refine REST APIs to support product discovery and shopping features Participate in solution design and technical discussions with cross-functional teams Promote clean, testable code, CI/CD best practices, and strong version control standards Review code, share knowledge, and support engineering quality across the team Collaborate with offshore engineers to ensure alignment and consistency What We're Looking For: 5+ years of backend development experience, ideally with PHP and Symfony Strong understanding of modern software development practices and lifecycle Proven experience with REST APIs, relational databases (MySQL), and clean architecture Experience with containers and cloud-native environments Familiar with SOLID principles, design patterns, and automated testing Collaborative and proactive approach to communication and problem-solving Self-driven with the ability to take full ownership of technical tasks Bonus Points: Experience in search systems, catalog architecture, or product recommendation engines Exposure to Elasticsearch, Redis, or RabbitMQ Familiarity with Domain-Driven Design (DDD) Background in high-traffic, customer-facing platforms Interest in mentoring or technical coaching Reperio Human Capital acts as an Employment Agency and an Employment Business. Skills: PHP 7/8 Symfony MySQL REST APIs CI/CD Benefits: Work From Home