Job Summary: We are seeking a Senior Portal and Middleware Engineer to drive the evolution of a high-criticality enterprise corporate portal, working on complex integrations and middleware architecture. Key Highlights: 1. Strong technical role with real autonomy 2. Technical design, advanced customization, and architectural decision-making 3. Stable, international, and technically demanding project Senior Portal & Middleware Engineer 100% REMOTE | International Project | Financial Sector An international technology company delivering digital transformation projects for large corporations is hiring a Senior Portal & Middleware Engineer for a strategic initiative in the banking environment, collaborating with a team based in the UK. If you are looking for a solid technical role with real autonomy and fully remote work from Spain, this is a distinctive opportunity. What will you build? You will be part of the evolution of a high-criticality enterprise corporate portal, working on complex integrations and middleware architecture within a regulated environment. This is not about basic maintenance: it is about technical design, advanced customization, and architectural decision-making. Key Responsibilities Development and evolution of the enterprise corporate portal. Building modular components (portlets or equivalents). Integration with core enterprise systems (including SAP environments). Advanced customization of themes, templates, and structure. Advanced modeling and management of content in the corporate CMS. Active participation in technical decisions and definition of standards. Analysis and resolution of complex incidents. Daily collaboration in an international environment (fluent English required). Solid experience (minimum 4–5 years) in enterprise middleware environments. In-depth knowledge of corporate portal platforms (Liferay, SAP Portal, WebLogic Portal or similar). Specific experience with WebSphere Portal Server. Advanced content management in enterprise CMSs. English level C1 (professional daily use). Residency in Spain and valid documentation. Banking or highly regulated environment experience, as well as Java EE architecture knowledge, will be valued. A university degree is not mandatory if the technical track record is consistent. 100% genuine remote work from anywhere in Spain. Stable, international, and technically demanding project. Direct interaction with the UK team. Intensive working hours during summer. An environment where the senior profile contributes technical judgment, not just execution. If you are comfortable working with complex architectures, enterprise portal environments, and robust middleware—and want to do so without sacrificing full remote work—this could be your next career step.