Fullstack Engineer (PHP/Symfony)

TITLE: Senior Full Stack Engineer (PHP/Symfony + Next.js)

You'll build a modern vacation platform end to end: advanced search, multi-currency reservations, billing, inventory, and third-party integrations. The stack is a PHP/Symfony back end with a Next.js front end and admin system. Design and build scalable, maintainable PHP/Symfony applications and APIs Model complex business domains with Domain-Driven Design, keeping business logic well-bounded and adaptable Build Next.js/React features in TypeScript across the customer-facing front end and the admin system Build and tune search experiences for members finding and booking stays, including real-time delivery of results via Mercure Design efficient PostgreSQL schemas and queries, and implement caching strategies that hold up at scale Design secure, high-performing APIs and build complex integrations with third-party providers, internal services, and external data sources Use AI tools to speed development while owning correctness, security, and maintainability, and help set the team's practices for AI-assisted development Contribute to architecture decisions and engineering standards through code review, testing, and documentation Partner with Product, Design, QA, DevOps, and Security in sprint planning, reviews, and retrospectives Expect roughly a 60/40 back-end/front-end split: Early work is back-end heavy (server, APIs, integrations). Later stretches may be almost entirely Next.js admin work. WHO WE'RE LOOKING FOR 5+ years of professional PHP development at an expert level, with advanced, hands-on Symfony experience Production Next.js and React experience in TypeScript, well beyond cursory familiarity. This is a true full-stack role, not a back-end role with occasional UI work. Domain-Driven Design applied in your day-to-day work Hands-on experience with Mercure and event-driven architecture Advanced PostgreSQL, including schema design and query optimization Search systems experience with Elasticsearch, OpenSearch, or similar Deep caching experience: Redis, HTTP caching, and application-level caching A track record designing and delivering complex API integrations Hands-on AI-assisted development experience, with a clear grasp of its limits and accountability for what ships Solid OOP, design patterns, and service-oriented architecture; CI/CD, Git, and Docker Expert English proficiency, written and spoken Self-starter who works independently and communicates proactively in a fast-moving environment