Systems Security Engineer

We are looking for a Systems Security Engineer to strengthen and secure enterprise infrastructure for a respected financial institution in San Antonio, Texas. This position blends hands-on systems administration with a strong security focus, making it well suited for someone who can protect Windows-based environments while advancing consistent controls across the organization. The individual in this role will help elevate the company’s security posture through practical hardening measures, policy enforcement, and close collaboration with technical and business stakeholders.Responsibilities:• Build, deploy, and support secure infrastructure solutions across both on-premises systems and cloud-based platforms.• Manage and enhance Microsoft security and identity tools, including Intune, Entra ID, Defender, Active Directory, and Group Policy, to improve control and visibility.• Define and apply security configuration standards that align with recognized benchmarks and enterprise best practices.• Drive initiatives related to server hardening, patching, vulnerability resolution, and ongoing configuration oversight.• Create and maintain endpoint protection standards and device compliance rules to support a secure user environment.• Review security alerts, examine potential threats, and coordinate timely corrective actions with the appropriate teams.• Partner with infrastructure, networking, and IT leadership to promote standardized security processes and technology practices.• Provide administration and support for core Windows Server services and related enterprise infrastructure components.• Contribute to audits, risk reviews, and compliance activities associated with regulated financial environments.