Systems Administrator/Infrastructure Engineer

Company: RER Solutions, Inc.
Location: Washington
Posted on: February 19, 2026

Job Description:

Job Description Job Description Description: Do you want to work for a company that cares about you as a person, not just a number? For a company that provides outstanding leadership? For a company that offers exceptional benefits? RER Solutions, Inc., could be your new home. RER Solutions, Inc. is accepting resumes for a Systems Administrator/Infrastructure Engineer to manage, maintain, and enhance DOE owned systems and enterprise server environments. The Systems Administrator/Infrastructure Engineer will ensure system reliability, security, performance, and scalability while supporting critical business applications and infrastructure modernization initiatives. RESPONSIBILITIES Manage and support Development, Test, and Production server environments, ensuring high availability and performance Perform regular server maintenance, including patching, updates, and remediation of security vulnerabilities Conduct monthly server patching, vulnerability remediation, and security hardening Install, configure, and maintain enterprise applications, including Microsoft SQL Server Administer and support multiple database instances across several servers Perform SQL database maintenance, including clean-up, re-indexing, and performance optimization Configure and manage websites using F5 load balancers Conduct security assessments, audits, and remediation activities Perform daily audits of Windows and SQL logs to ensure compliance and system integrity Coordinate server, network, storage, security, and enterprise application activities Support continuous deployment, troubleshooting, and release management for DOE owned applications Maintain configuration management standards and recommend architecture and infrastructure improvements Requirements: US Citizenship is required A minimum of 5 years of related professional experience Proven experience as a Systems Administrator, Infrastructure Engineer, or similar role Strong expertise in Windows Server environments, Active Directory, and domain management Hands-on experience with SQL Server administration and optimization Experience with AWS cloud migration and infrastructure management Familiarity with enterprise security practices, vulnerability management, and compliance Experience supporting enterprise applications and CI/CD environments Strong troubleshooting, documentation, and communication skills EDUCATION : Bachelor’s Degree COMPENSATION : Includes paid holidays, vacation, sick leave, 401k matching, life insurance, health, and dental benefits. This position is not available for Corp-to-Corp or 3rd party sourcing. We are an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.

Keywords: RER Solutions, Inc., Leesburg , Systems Administrator/Infrastructure Engineer, IT / Software / Systems , Washington, Virginia