At FACTECH, we continue to grow and are looking for a System Administrator / Middleware Consultant to join an international project focused on infrastructure operations, middleware administration, and enterprise application support. This role combines system administration, database management, middleware support, infrastructure monitoring, and security compliance activities within a complex enterprise environment. If you enjoy working across both Windows and Linux ecosystems, supporting critical applications and ensuring platform stability, this opportunity could be the perfect fit for you. Key Responsibilities

Perform system administration and maintenance activities across Windows and Linux environments. Manage deployments, configurations, upgrades, and troubleshooting tasks. Provide technical support for Java-based applications and enterprise middleware platforms. Ensure the availability, reliability, and performance of critical systems and services. Administer and maintain middleware technologies including RabbitMQ and Redis. Manage and optimize databases such as MySQL, Oracle, and SQL Server. Monitor infrastructure performance using tools such as Zabbix and proactively address incidents. Collaborate with development and infrastructure teams to support enterprise application frameworks. Participate in vulnerability management activities and support security compliance initiatives. Contribute to Zero Trust security architecture implementation and best practices. Create and maintain technical documentation and operational procedures. Required Skills & Experience





Systems Administration Strong hands-on experience with Windows Server environments. Solid Linux administration experience, including: RedHat CentOS Ubuntu Application & Middleware Support Ability to read, analyze, and debug Java code. Experience supporting Java-based enterprise applications. Proven experience administering: RabbitMQ Redis Database Administration Experience managing and maintaining: MySQL Oracle Database Microsoft SQL Server Networking Solid understanding of networking fundamentals: TCP/IP DNS VPN Monitoring & Enterprise Frameworks Experience with infrastructure monitoring tools, preferably Zabbix. Familiarity With

Spring Cloud Enterprise application frameworks Security Understanding of cybersecurity principles and enterprise security practices. Experience With

Vulnerability management Security compliance processes Zero Trust concepts and architectures Soft Skills Strong problem-solving and troubleshooting skills. Ability to work independently and within multidisciplinary teams. Excellent communication skills. Proactive mindset and attention to detail. Ability to work in a fast-paced and critical production environment. What We Offer

Opportunity to join a challenging international project. Exposure to enterprise-level infrastructure and middleware technologies. Collaborative and dynamic work environment. Professional growth within a technology-focused consultancy. Competitive compensation package based on experience. Requisitos mínimos #FacTECH

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📌 System Administrator / Middleware Consultant (Windows & Linux) (Madrid)
🏢 FacTECH Servicios Informáticos
📍 Madrid