Senior Systems Engineer – Infrastructure & Security

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Systems Engineer – Infrastructure & Security based in the United States. The Senior Systems Engineer will help maintain and secure an enterprise infrastructure environment supporting critical systems and applications. In this fully remote role, you will manage a mixed server environment consisting primarily of Red Hat Enterprise Linux, alongside Windows servers, while supporting security compliance and vulnerability remediation. You will play a key role in system performance monitoring, capacity planning, patch management, and certificate administration across on-premises and AWS environments. Working closely with development, database, customer support, data center teams, and external partners, you will help resolve technical issues and maintain reliable operations. You will also contribute to security assessments, audits, and recurring compliance activities aligned with federal standards. This opportunity is ideal for a hands-on infrastructure professional with an active Secret security clearance and a strong commitment to system reliability, security, and operational excellence.