Expertise in JavaScript (ES6+), TypeScript, and React, including hooks, functional components, and modern React patterns.
Strong UI development experience with responsive design, MUI, CSS-Modules, Tailwind CSS, Post CSS, and Sass/Less.
Strong knowledge of Redux Toolkit, Context API, Tan Stack Query, React Router/Tan Stack Router, route-driven UX, lazy loading, code splitting, and frontend performance optimization.
Strong knowledge of web accessibility (WCAG), semantic HTML, ARIA, keyboard navigation, color contrast, and automated accessibility testing.
Strong testing experience with Jest, React Testing Library, user-event, and exposure to Cypress or Playwright.
Experience in designing, developing, and integrating APIs, with the ability to understand backend implementations and perform end-to-end troubleshooting.
Strong knowledge of relational databases (MSSQL, PostgreSQL), schema versioning (Flyway), and ORM frameworks (Hibernate, JPA).
Experience designing, implementing, testing, and delivering reliable, high-performance,



scalable cloud-native applications using modern cloud services and architectural patterns.
Hands-on experience with enterprise authentication and identity solutions.
Experience with application packaging and containerization, including build tooling, Azure DevOps pipelines, Docker, and Kubernetes.
Strong understanding of secure software design, secure coding practices, static code analysis, vulnerability scanning, and remediation.
Basic knowledge of Terraform, including reading existing configurations and implementing minor changes.
Understanding of Infrastructure as Code (IaC), cloud infrastructure, networking, security, resource provisioning, and cloud operating models.

Nice to have

Experience designing and implementing enterprise backend applications using Java/Kotlin and Spring Boot.
Knowledge of cross-service communication patterns, including REST APIs, messaging, and JSON serialization.
Experience with advanced Spring Boot features such as

📌 Senior Full Stack Engineer (España)
🏢 Swiss Re
📍 España