Senior Java Developer (m/f)

Description

Job Summary: We are seeking a Senior Java Developer for a challenging project in the banking sector, initially focused on Java backend development and evolving to fullstack with React and Node.js. Key Highlights: 1. Technological transformation with FairSourcing, transparency, and trust 2. Challenging banking project evolving to fullstack 3. Backend service development in Java and RESTful APIs At **Onile IT**, we inspire technological transformation across organizations. Our mission is to change the paradigm of national consulting through the concept of **FairSourcing** \- our key differentiator \- which reflects our values: transparency, trust, and fair relationships with both clients and employees. **Senior Java Developer (m/f)** We are looking for 1 **Senior Java Developer** to join a project in the **banking** sector, tackling a challenging initiative initially focused on **Java** backend service development and later expanding into **fullstack** development using technologies such as React and Node.js. **What we are looking for:** **Backend (initial phase)** * \+8 years of solid experience in **Java (8\+)** and **Spring / Spring Boot** * Experience with **microservices** * Knowledge of **REST APIs (design, versioning, best practices)** * Understanding of backend application security **Additional assets:** * Experience with messaging systems (Kafka, NATS, ActiveMQ) * Knowledge of monitoring/logging * Experience with **Kubernetes** or container orchestration **Fullstack (evolutionary phase)** * Fullstack development experience * Strong knowledge of: * **React** (hooks, state management) * **Node.js** (Express or similar) * REST API experience * Knowledge of SQL/NoSQL databases **Your responsibilities:** **First phase (Backend)** * Develop backend services in **Java (Spring / Spring Boot)** within a microservices architecture * Create and maintain **RESTful APIs** for system integration * Model and optimize databases (**PostgreSQL, MongoDB, SQL Server**) * Ensure solution performance, security, and scalability **Second phase (Fullstack evolution)** * Develop **end\-to\-end** web applications * Build modern, responsive interfaces with **React** * Develop backend services with **Node.js** **Throughout the entire project** * Containerize services with **Docker** * Work with **Git and CI/CD pipelines** * Implement unit and integration tests * Monitor and resolve production incidents * Collaborate with cross\-functional teams (FE, core systems, analysts) * Participate in **code reviews** and continuous improvement * Document technical solutions (Jira, Confluence) **What we offer:** * Competitive compensation aligned with proven experience; * Opportunities for continuous training; * Health insurance including dental care; * 22 vacation days \+ birthday leave; * Hybrid work model (3 days per week in Lisbon). If you're ready to make a difference, send us your application! Employment type: Full\-time Work location: Hybrid remote work in Lisbon