Senior React Front-end Developer

• Lead architecture and development of large‑scale, high‑performance React applications.  

• Own the definition of coding standards, patterns, documentation, and reusable component libraries.  

• Conduct code reviews, mentor engineers, and guide technical decisions.  

• Collaborate with backend, DevOps, security, and product teams for end‑to‑end delivery. 

• Contribute to the technical design of the overall full-stack solutions.  

• Drive advanced performance optimization and complex issue debugging. 

• Stay ahead of modern React ecosystem trends and lead adoption initiatives. 

 Required Qualifications 

• Bachelor’s degree (Master’s preferred) in Computer Science, Engineering, or related field. 

• 7–10 years of software development experience, with 5+ years specialized in React.js and modern JavaScript (ES6+). 

• Proven experience with architectural patterns (micro‑frontends, modular architectures). 

• Deep expertise in TypeScript, component architecture, state management (Redux, Zustand, MobX), and performance tuning. 

• Strong experience designing and consuming RESTful APIs and GraphQL. 

• Hands-on experience with cloud-native architectures (Azure, AWS, GCP), including hosting, scaling, CDNs, caching, and serverless functions. 

• Proven experience implementing authentication & authorization flows (e.g. OAuth2 / OIDC, JWT). 

• Expertise with Next.js including SSR, SSG, ISR, routing, middleware, API routes, and edge rendering. 

• Solid experience with CI/CD pipelines, testing frameworks, code quality automation, and release management. 

• Experience deploying & monitoring client-side & full-stack front-end applications. 

• Must be based in Cyprus, or willing to relocate, and follow a hybrid work model (3 days per week onsite). 

Skills and attributes for success 

• Ability to architect scalable front-end solutions in cloud-native environments using micro-frontend or distributed UI patterns. 

• Strong understanding of performance budgets, bundle analysis, caching strategies, CDN usage, and Core Web Vitals optimization. 

• Ability to collaborate across backend, DevOps, cloud, and product teams to design and deliver end-to-end solutions. 

• Deep understanding of security best practices, including XSS, CSRF, CSP, CORS, secure tokens, and API security. 

• Strong debugging and observability mindset (logs, metrics, tracing, APM). 

• Ability to mentor engineers, drive code standards, lead architectural reviews, and elevate engineering quality. 

• Ability to design and oversee AI‑augmented development workflows, ensuring junior and mid-level developers use agents responsibly, safely, and effectively. 

• Strong understanding of agentic AI patterns (multi‑step planning, codebase reasoning, test coverage analysis, incremental refactoring). 

• Expertise in critical evaluation of AI-suggested implementations, balancing innovation with stability, security, and maintainability. 

Ideally you should also have 

• Experience integrating real-time features such as WebSockets, Server-Sent Events (SSE), Socket.io, Pub/Sub systems. 

• Experience with notifications systems, including push notifications & in-app messaging. 

• Experience building or integrating design systems / component libraries (Storybook, MUI). 

• Cloud native development certification (Azure/AWS) 

• Accessibility engineering (WCAG/ARIA) experience.  

• Exposure to containerization and DevOps tools (Docker, Kubernetes).  

What we offer you  

At EY, we’ll develop you with future-focused skills and equip you with world-class experiences. We’ll empower you in a flexible environment, and fuel you and your extraordinary talents in a diverse and inclusive culture of globally connected teams. Learn more. 

In addition to a competitive salary, our benefits include but are not limited to: 

• 13th salary and yearly bonus  

• Provident Fund  

• Private Medical and Life Insurance  

• Flexible working arrangements (hybrid work and flexible work schedule)  

• Friday afternoon off   

• EY Tech MBA and EY MSc in Business Analytics  

• EY Badges - digital learning certificates  

• Mobility programs (if interested to work abroad)  

• Paid Sick Leave  

• Paid Paternity Leave  

• Yearly wellbeing days off   

• Maternity, Wedding and New Baby Gifts   

• EY Employee Assistance Program (EAP) (counselling, legal and financial consultation services)