Senior Full Stack Engineer

Chubb is a world leader in insurance. With operations in 54 countries and territories, Chubb provides commercial and personal property and casualty insurance, personal accident and supplemental health insurance, reinsurance and life insurance to a diverse group of clients. The company is defined by its extensive product and service offerings, broad distribution capabilities, exceptional financial strength and local operations globally. Parent company Chubb Limited is listed on the New York Stock Exchange (NYSE: CB) and is a component of the S&P 500 index. Chubb employs approximately 40,000 people worldwide.

Chubb launched its third Engineering Center in Thessaloniki in 2022. Our rapidly expanding new Chubb Engineering Center in Greece (CECG) is integrated with the Engineering Centers in India and Mexico to support our global technology needs and digital business transformation, as well as the company's operations in the Europe - Middle East - Africa region operating in 27 countries.

Chubb  is seeking a skilled Full Stack Engineer with a focus on Backend for Frontend (BFF) development to join our engineering team. The ideal candidate will have strong experience in designing, developing, and maintaining BFF layers that serve as the integration point between frontend applications and our microservice architecture. You will work collaboratively with frontend engineers and backend teams to deliver seamless, optimised API experiences that meet the specific needs of our client applications.

Key Responsibilities

BFF Development

• Design, develop, and maintain Backend for Frontend (BFF) services that aggregate and orchestrate data from multiple microservices
• Create optimised API endpoints tailored to specific frontend application requirements
• Implement data transformation, aggregation, and filtering logic to reduce frontend complexity
• Integrate BFF services with existing Process APIs within our microservice architecture
• Develop efficient API contracts that minimise over-fetching and under-fetching of data
• Implement caching strategies to optimise performance and reduce load on downstream services

API Integration and Microservices

• Integrate with existing Process APIs and domain microservices
• Design and implement service-to-service communication patterns (REST, GraphQL, messaging)
• Handle API versioning, backwards compatibility, and graceful degradation
• Implement circuit breakers, retry logic, and fault tolerance patterns
• Monitor and optimise API performance, latency, and throughput

Security and Quality

• Implement API security measures including JWT authentication, OAuth2, and token validation
• Apply input validation, sanitisation, and security best practices
• Write clean, maintainable, and well-documented code following best practices
• Conduct code reviews and provide constructive feedback to team members
• Develop comprehensive unit and integration tests for BFF services

Collaboration and Delivery

• Collaborate closely with frontend engineers to understand client-specific data requirements
• Work with backend/microservice teams to understand available Process APIs and data contracts
• Participate in Agile/Scrum ceremonies including daily standups, sprint planning, and retrospectives
• Support CI/CD pipeline management and deployment processes
• Document API contracts and integration patterns for frontend teams

Key Qualifications

• Bachelor’s in Computer Science, IT, or related field (or equivalent experience)
• 3–5 years in backend/full stack development
• Microservices and API gateway experience
• Spring Boot (Java), RESTful APIs, Microservices
• OpenAPI/Swagger, MongoDB, SQL
• Git, CI/CD, API testing tools
• Authentication: JWT, OAuth2, Azure AD B2C/B2B (critical)

• Node.js/NestJS, TypeScript, Docker, Kubernetes, Azure services

• Problem-solving, communication, teamwork, adaptability

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