Job Summary: We are seeking a senior middleware professional to ensure operational excellence of WebSphere services, optimize platform performance, and contribute to environment modernization—with a focus on production support and problem resolution. Key Highlights: 1. Ensure stability and production support for WebSphere services. 2. Contribute to modernizing WebSphere environments to Liberty. 3. Optimize platform performance through monitoring and analysis. What You’ll Do: * Ensure stability, support, and operational excellence of WebSphere services in production; * Handle incidents, perform runtime problem resolution, and manage restart and recovery activities; * Monitor systems, analyze alerts, and execute standard changes; * Support patch application processes and application lifecycle management activities; * Strengthen the middleware support team by contributing senior operational mindset and specialized expertise; * Contribute to modernization and migration of WebSphere Application Server environments to Liberty within a financial context; * Optimize platform performance through monitoring, server resource analysis, and continuous improvement initiatives. What We’re Looking For: * 5+ years of experience in middleware operations, application server support, or production support; * Proven experience administering IBM WebSphere Application Server; * Prior experience migrating from WebSphere ND/Base to Liberty—Mandatory; * Solid experience in monitoring, incident management, problem resolution, and service restoration; * Proficiency in Linux/Unix, foundational JVM knowledge, log analysis, and topics related to application server runtime; * Experience with deployment/orchestration tools (e.g., XL Deploy, XL Release) and Ansible for operational automation; * Strong shell scripting and Python skills; * Ability to independently handle complex Level 2/3 support cases in critical environments; * Practical experience in platform performance optimization and stability improvement; * English fluency—Mandatory. What We Offer: * Health insurance; * Feedback&Coffee – our performance management cycle, featuring regular feedback sessions and Aubay’s Career Progression Model; * Work model: Hybrid; * A tailored Training Academy designed around your needs—you’ll have access to technical and behavioral training (e-Learning and classroom-based), Meet&Techs, Webinars, and Mentoring; * Events and team-building activities. What Sets Us Apart? * Our organizational culture is rooted in values such as transparency, teamwork, regular feedback, and continuous learning; * Referral and birthday bonuses; * No dress code; * We know your name—and address each other informally; * You’ll grow alongside great colleagues. Isn’t this one of the best ways to advance professionally?