Senior React Front-End Developer

CBS group is one of the largest Technology, Information Technology and Telecommunications groups, Key Systems Integrators of the Greek and Cypriot Market, with a powerful presence of 35 years and consists of Cosmos Business Systems SA, Cosmos Consulting, CBS LAN and CBS IT Systems (Cyprus) LTD. Our company's mission is to provide high quality integrated solutions in technology products and services to meet the needs of Private Business Sector and Public Sector Organizations, investing in people and knowledge, a combination that makes it competitive and efficient. 📍Location: Hybrid (Athens) 💼Experience: 5+ years in a similar role ⏰ Type: Full-time Senior React Front-End Developer The successful candidate will join the software & consulting department and will be responsible for leading front-end development, architecting React applications, mentoring junior developers, and delivering high-quality user interfaces within co-founded and/or research projects as well as projects in the field of Public and Private Sector. 🧩 What we're looking for: · BSc/MSc in IT, Telecommunications, Computer Science, or relevant Science (Math/Physics) · 5+ years of solid hands-on experience with React.js and modern JavaScript (ES6+) · Expert-level skills in HTML5, CSS3, and advanced responsive web design · Deep experience with state management (Redux, Context API) · Advanced proficiency in TypeScript and modern development practices · Strong experience with Git / GitHub and code review processes · Extensive experience with RESTful APIs and GraphQL integration · Experience in application architecture and performance optimization · Proven track record of leading technical projects · Fluent in English (written and spoken) · Completed military obligations (if applicable) ✨Nice to Have · Next.js or other React frameworks · DevExpress / Tailwind CSS / Material-UI / Ant Design / Styled Components · Figma for design collaboration and advanced UI implementation · Advanced experience with build tools (Webpack, Vite) and module federation · Comprehensive testing experience (Jest, React Testing Library, Cypress, Playwright) · Solid understanding of backend technologies (.NET, Java Spring Boot, Node.js) · Docker / Kubernetes and containerization strategies · Strong knowledge of IT Security topics and best practices · Azure & Cloud Architecture, CI/CD pipelines · Advanced UX/UI design principles and accessibility (WCAG) · Agile/Scrum methodologies and team leadership experience · Micro-frontends architecture · Progressive Web Apps (PWA) development 🗣️Soft Skills · Proven leadership and mentoring abilities · Excellent project management & prioritization skills · Strong team spirit & cross-functional collaboration · Adaptability and innovation mindset for emerging technologies · Exceptional communication and presentation skills · Attention to detail and commitment to code quality · Problem-solving and critical thinking abilities · Ability to work independently and make technical decisions 💼 What We Offer · Competitive salary · Hybrid work model · Modern, inclusive, and collaborative work environment · Continuous development and certification opportunities · Long-term career prospects in a growing company Advanced training & certification opportunities · Excellent prospects for career growth to Lead/Architect roles · Participation in cutting-edge technology projects We are committed to an inclusive culture that encourages and supports the diverse voices of our employees.  We welcome applications from individuals of all genders, ages, sexual orientations, nationalities, ethnicities, religions, beliefs, and ability status and all other diversity characteristics. 🔒 All submissions will be treated as confidential. Dear Applicants, After you submit your application, it will be evaluated by Cosmos Business Systems's Human Resources Department and, if your academic and professional profile meets the requirements of the position in question, we will contact you to schedule a personal interview. Cosmos Business Systems, will process your Personal Data in its capacity as Data Controller, according to the information you will find available in the following link: Privacy Notice for processing personal Data For any clarification or objection related to the processing of your Personal Data by Cosmos Business Systems, you may contact the Data Controller to the following email address: dpo@cbs.gr