Senior Full Stack Engineer (Strong Frontend Expertise) Our team, a software house within Swiss Re, develops cloud‑native (Azure‑based) SaaS/PaaS solutions for external Life & Health insurance clients. Our portfolio includes globally established products and those in growth or incubation stages. We utilize the latest technology and prioritize innovation to stay competitive.

Our technical team comprises professionals with multidisciplinary skills, located in various countries, delivering highly available, multi‑regional solutions used worldwide. As the Senior Full Stack Engineer with strong frontend skills, you will design and develop software solutions, assist fellow engineers through peer coding and reviews, and lead discussions on development approaches and best practices. Design and develop high-quality, rich front‑end applications for cloud‑native, scalable environments.

Build and maintain secure, reliable, and high‑performing software that meets scalability and client requirements. Promote and apply software engineering best practices through collaboration, code reviews, and continuous improvement. Working in Agile environments, delivering high‑quality software, mentoring engineers, conducting code reviews, and driving engineering best practices.

If you, however, meet some of the criteria below and are genuinely curious about the world of software development, we will be happy to meet you. 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.

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.

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 custom annotation processors, request interceptors, background task executors, asynchronous jobs, and Spring Security. For Spain the annual base salary range for this position is between EUR 60,000 and EUR 100,000 (for a full‑time role). In addition to your base salary, Swiss Re offers an attractive performance‑based variable compensation component, designed to recognise your achievements.

Further you will enjoy a variety of integral and location specific benefits. Eligibility may vary depending on the terms of Swiss Re policies and your employment contract.

Swiss

Re is one of the world’s leading providers of reinsurance, insurance and other forms of insurance‑based risk transfer, working to make the world more resilient. We anticipate and manage a wide variety of risks, from natural catastrophes and climate change to cybercrime. In our inclusive and flexible environment everyone can bring their authentic selves to work and their passion for sustainability.

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📌 Senior Full Stack Engineer (Strong Frontend Expertise) (Madrid)
🏢 Crossell
📍 Madrid