Backend Developer

Description

Summary: Join a banking sector reference company as a Backend Developer to design, implement, and maintain backend services and web applications within a microservices architecture. Highlights: 1. Design and implement backend services in Java (Spring / Spring Boot) 2. Develop and maintain RESTful APIs and end-to-end web applications 3. Model, implement, and optimize relational data models in PostgreSQL/MongoDB We are looking for a Backend Developer to join the team of our client \- a reference company in the banking sector. What will be your main tasks and responsibilities? * Design and implement backend services in Java (Spring / Spring Boot) within a microservices architecture. * Develop and maintain RESTful APIs for integration between internal services and external systems. * Model, implement and optimise relational data models in PostgreSQL, MongoDB and SQL Server (complex queries, indexes, basic tuning). * Develop and maintain end\-to\-end web applications (frontend and backend) * Implement modern, responsive interfaces using React * Develop APIs and backend services using Node.js * Create and maintain Dockerfiles and configurations required for the containerisation of backend services. * Ensure best practices for versioning, CI/CD and deployment using Git and existing pipelines (e.g. integration with Docker). * Implement unit and integration tests, supporting quality throughout the entire lifecycle (SIT, UAT, production). * Monitor, analyse and resolve incidents in the production environment, contributing to stability and observability. * Collaborate with FE and Core System (BANKA) teams, as well as business analysts, translating business requirements into technical solutions. * Participate in code reviews and the continuous improvement of the codebase, architectural patterns and technical guidelines. * Document services, endpoints, data flows and architectural decisions in tools such as Jira/Confluence. What is required from you? * Solid experience in backend development using Java (Java 8\+), ideally with Spring / Spring Boot. * Practical experience with microservices architectures (REST communication, event\-driven where applicable). * Proficiency in Node.js and React. * Knowledge of designing and consuming REST APIs (best practices, versioning, documentation). * Basic understanding of backend application security (authentication/authorisation, handling of sensitive data). * Knowledge of messaging/events (Kafka, NATs, ActiveMQ), centralised monitoring/logging, Kubernetes or other container orchestration is an advantage. Sounds like you? Send us your CV and let's talk! \#LI\-SN1 Candidate\-se através do website Poderá encontrar o anúncio original publicado em: https://www.itjobs.pt/oferta/512532/backend\-developer