<h2 class="vacancy-row__title">Company Background</h2><p>Our client is a global technology company transforming the advertising landscape by enabling advertisers, agencies, publishers, and broadcasters to leverage advanced data and modern TV technologies. Their unified technology stack includes a demand-side platform, a supply-side platform, and a robust data platform that supports scalable advertising solutions. With an international presence and a culture of flexibility and innovation, they are building a world-class engineering organization.</p><h2 class="vacancy-row__title">Project Description</h2><p>The project is high-load Ad Server platform with a large number of users that helps selecting and delivering auction-based ads in real time. The goal is to migrate from a monolithic PHP architecture to Nest.js microservices and enhance functionality with new features. The migration has just started, offering the opportunity to influence architectural decisions and work on a challenging, performance-critical system. The team includes 2 BE engineers focused on the ad server and 1 BE and 1 Full Stack engineer working with the UI.</p><h2 class="vacancy-row__title">Technologies</h2><ul class="badges"><li>PHP 7.4</li><li>Laravel</li><li>Eloquent ORM</li><li>Node.js/Nest.js</li><li>MySQL</li><li>Redis</li><li>RESTful APIs</li><li>Docker/Kubernetes deployment</li><li>AWS ECS</li><li>Nginx</li><li>CI/CD</li></ul><h2 class="vacancy-row__title">What You'll Do</h2><ul><li>Navigate and refactor a tightly-coupled codebase where UI components are generically driven by backend entity types;</li><li>Break down high cohesion between frontend and backend to enable independent evolution;</li><li>Identify and eliminate architectural bottlenecks blocking new product requirements;</li><li>Modernize patterns where the generic framework creates unnecessary complexity;</li><li>Balance maintaining existing abstractions vs. introducing pragmatic solutions;</li><li>Design and implement new API endpoints in Laravel and Nest.js;</li><li>Manage API versioning and backward compatibility;</li><li>Work with complex query filter system and entity relationships;</li></ul><h2 class="vacancy-row__title">Job Requirements</h2><ul><li>5+ years of experience in PHP and Laravel development;</li><li>Experience working with microservices architecture;</li><li>Experience working with <span data-teams="true">SQL databases;</span></li><li>Strong experience maintaining, refactoring, and improving complex, tightly coupled systems;</li><li>Proven track record of decomposing monolithic applications into modular, scalable components;</li><li>Solid understanding of dependency injection, service-oriented architecture, and interceptor patterns;</li><li>Knowledge of English - from B2;</li></ul><h2 class="vacancy-row__title">Nice to Have</h2><ul><li>Experience with Nest.js or similar Node.js frameworks;</li><li>AdTech domain knowledge (DSP, SSP, programmatic advertising);</li><li>Hands-on experience modernizing legacy systems or performing large-scale migrations;</li><li>Strong understanding of design patterns: Factory, Strategy, Observer, Repository;</li></ul><h2 class="vacancy-row__title">What Do We Offer</h2><p>The global benefits package includes:</p><ul><li>Technical and non-technical training for professional and personal growth;</li><li>Internal conferences and meetups to learn from industry experts;</li><li>Support and mentorship from an experienced employee to help you professional grow and development;</li><li>Internal startup incubator;</li><li>Health insurance;</li><li>English courses;</li><li>Sports activities to promote a healthy lifestyle;</li><li>Flexible work options, including remote and hybrid opportunities;</li><li>Referral program for bringing in new talent;</li><li>Work anniversary program and additional vacation days.</li></ul>