Company description Resources is the backbone of Publicis Groupe, the world’s second-largest communications group. Formed in 1998 as a small team to service a few Publicis Groupe firms, Re:Sources has grown to 5,000+ people servicing a global network of prestigious advertising, public relations, media, healthcare and digital marketing agencies. We provide technology solutions and business services including finance, accounting, legal, benefits, procurement, tax, real estate, treasury, and risk management to help Publicis Groupe agencies do what they do best: create and innovate for their clients. In addition to providing essential, everyday services to our agencies, Re:Sources develops and implements platforms, applications and tools to enhance productivity, encourage collaboration and enable professional and personal development. We continually transform to keep pace with our ever-changing communications industry and thrive on a spirit of innovation felt around the globe. With our support, Publicis Groupe agencies continue to create and deliver award-winning campaigns for their clients. Overview We are looking for a Senior Full-Stack Developer with expertise in React.js and Node.js to lead the development of cutting-edge web applications. This role requires deep knowledge of full-stack development, API design, and cloud-based architectures. You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important. Responsibilities Lead the development of scalable React.js/Next.js and Node.js applications. Architect and optimize microservices, APIs, and database structures. Design responsive and user-friendly interfaces using modern JavaScript/TypeScript frameworks such as Next.js, React.js and front-end CSS frameworks like Tailwind and Bootstrap, MUI Create RESTful, GraphQL APIs to enable communication between backend and front-end applications. Write clean, efficient, and well-documented code following industry best practices and coding standards. Identify and resolve software defects, code smells, and performance bottlenecks. Guide and mentor junior and mid-level developers. Implement best practices for security, performance, and scalability. Conduct code reviews and ensure high development standards. Stay updated with industry trends and emerging technologies. Skills 5+ years of experience in full-stack development. Deep expertise in React.js, Next.js, Node.js, TypeScript, and Express.js/NestJS. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model Experience with microservices, serverless architectures, and API design. Knowledge of modern authorization mechanisms, such as JSON Web Token Familiarity with modern front-end build pipelines and tools Strong database management skills (preferably SAP HANA DB). Strong leadership and communication skills.