Senior Full Stack Engineer; Strong Frontend Expertise

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About the Team and our Scope

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.

About the Role

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. Collaborate with product owners, architects, and engineering teams to translate business needs into robust technological solutions that align with the product vision and roadmap.

Your responsibilities will be:

• 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.
• Participate in architecture and design workshops, code reviews, and SDLC activities, collaborating closely with architects, engineering managers, and product owners.
• Evaluate and prototype new technologies by building Proofs of Concept (PoCs).
• 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.

About You

Nobody is perfect and meets 100% requirements. 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.

If you possess traits and experience that fit into the below, we’d love to hear from you.

Must have excellent technical proficiency in

• 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 Dev Ops 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 custom annotation processors, request interceptors, background task executors, asynchronous jobs, and Spring Security.

For Spain the annual base salary range for this…