Senior System Engineer

Install, configure, maintain, and troubleshoot Linux (Red Hat Enterprise Linux - RHEL) and Unix (AIX) servers. Manage and operate the virtualization environment on ESXi (VMware vSphere), including VM deployment, monitoring, and optimization. Perform system patching, OS upgrades, and routine maintenance tasks to ensure system stability and security. Install, configure, manage, and monitor various Java-based Middleware applications. Specifically, manage, operate, and troubleshoot the Anylink Tmax solution. Perform Java application builds and deployments to server environments. Analyze, diagnose, and resolve issues related to performance, system errors, or Middleware application malfunctions. Collaborate with application development teams to optimize the performance and stability of Java applications. Implement, manage, and monitor system and application data backup solutions. Periodically verify the integrity of backups and execute data recovery procedures when necessary to ensure system availability. Implement and enforce information security policies and controls specifically aligned with PCI DSS requirements across server infrastructure, Middleware, and applications. Manage access control and user authentication on managed systems to meet PCI DSS standards. Conduct vulnerability scanning, participate in penetration testing remediation, and propose corrective measures to address security weaknesses as per PCI DSS. Collaborate closely with internal security teams and external auditors to ensure continuous PCI DSS compliance and adherence to industry best practices. Implement necessary security configurations to protect cardholder data and systems from threats. Proactively monitor systems and applications for early issue detection. Promptly respond to and resolve technical incidents in accordance with SLA (Service Level Agreement) procedures. Provide in-depth technical support for infrastructure and Middleware-related issues.