Experis ManpowerGroup Sp. z o.o. is hiring: Senior JS React Developer in Poland

Senior JS React Developer 100% REMOTE WORK B2B via Experis B2B rate: 120-150 PLN netto+VAT/h As a Senior JS React Developer, you will be responsible for developing and maintaining frontend components using React.js, driving best practices, collaborating with designers and developers, and ensuring high performance and scalability. Responsibilities Develop and maintain custom CMS modules/plugins and integrations. Contribute to all phases of the development lifecycle. Drive best practices: test-driven development, continuous integration, SCRUM, refactoring, code standards. Work closely with front‑end designers and developers to ensure effective, visually appealing, and intuitive implementations. Ensure content is easily editable by non‑technical staff. Optimise applications for maximum speed and scalability. Collaborate with other team members and stakeholders. Stay up-to-date on emerging technologies. Requirements Frontend: Strong skills in React.js and Next.js (SSG/SSR, i18n, performance optimisation). Languages: JavaScript/TypeScript, HTML5, SCSS/Tailwind. APIs: REST, GraphQL. Tooling: Jira, Git, Figma, Confluence. Architecture (Preferred): Headless, Decoupled, Micro Frontends, Component-based design. Cloud & DevOps: Docker, Kubernetes, GitLab CI/CD, AWS/Azure/GCP. We offer B2B contract via Experis 100% REMOTE WORK Medicover Multisport E-learning platform Group insurance #J-18808-Ljbffr