Senior Full-Stack Engineer (PHP/React)

💰 Salary: 13,000–25,000 PLN gross on CoE / 15,000-28,000 PLN NET on B2B 🕦 Full-time☑️ B2B or CoE🏢 Hybrid: 3 days office / 2 days home in WarsawWe’re looking for a Senior Full-Stack PHP Developer to join a well-established international IT company that builds long-term partnerships with businesses rather than outsourcing. The team works on high-impact platforms in industries such as aviation, banking, B2B marketplaces, and job search solutions.Requirements3+ years of experience with PHP (Symfony, PSR standards)3+ years of experience with TypeScript/JavaScript and React (Redux)Strong understanding of the full application lifecycleExperience with PostgreSQL and backend integrationsHands-on experience with Docker and modern development workflowsConfident working in Linux environments (1+ year)Active use of Composer and dependency managementExperience with CI/CD, cross code reviews, and TDDEnglish proficiency for daily communication with colleagues and PMsNice to HaveExperience modernizing or upgrading legacy PHP applicationsFamiliarity with RabbitMQ, Memcached, Manticore/Sphinx SearchExperience with SSR, WebPack/Vite, LeafletFrontend testing experience (Jest, React Testing Library, Playwright)Knowledge of Kubernetes, Vagrant, SaltStackExperience with AI-related solutions or integrationsKey ResponsibilitiesDevelop and maintain scalable full-stack applications using PHP and ReactBuild and integrate backend services, APIs, and messaging systemsContribute to architectural decisions and participate in code reviewsCollaborate closely with product managers and cross-functional teamsEnsure performance, reliability, and long-term maintainability of applicationsSupport CI/CD pipelines and testing practicesShare knowledge and best practices within the engineering teamWhat We OfferCompany-provided work equipmentFully paid sick leaveHealthcare or MultisportAnnual salary review75% reimbursement for professional educationFree weekly English classesGet to know DevsData: We are a technology consulting company and a recruitment agency, delivering software solutions to clients from Europe and the US. We work 100% remotely, in an international team, including people from Asia, London, or San Francisco. We employ people with experience in international corporations as well as students of the best technical and business universities. Find out more: https://devsdata.com/