Systems Administrator

This is a fully remote position, open to applicants in Virginia.

📋 Description

• Deploy, configure, manage, and troubleshoot Windows and Linux servers across physical, virtual, and cloud settings.

• Monitor the health, capacity, availability, and performance of infrastructure; respond to alerts and proactively address issues.

• Administer and support AWS and hybrid-cloud infrastructures, encompassing compute, storage, networking, security groups, IAM, and resource monitoring.

• Manage Microsoft 365, Active Directory, and Entra ID services, including user and group management, licensing, Group Policy, permissions, authentication, and access controls.

• Maintain DNS, DHCP, TCP/IP, LAN/WAN connectivity, certificates, and associated configuration standards.

• Install, configure, patch, upgrade, and troubleshoot operating systems, infrastructure tools, and business applications.

• Support backup, restoration, disaster recovery, and business continuity processes.

• Implement security hardening measures, vulnerability remediation, privileged-access controls, and configuration enhancements.

• Act as an escalation point for complex infrastructure incidents; conduct root-cause analysis and document corrective actions.

• Automate administrative, monitoring, reporting, and deployment tasks using scripting and configuration-management tools.

• Maintain infrastructure inventories, configurations, support documentation, diagrams, standard operating procedures, and disaster recovery records.

• Manage infrastructure asset and service lifecycles, including capacity planning, renewals, upgrades, vendor coordination, and the retirement of outdated systems.

• Collaborate with application, security, network, service desk, and business teams on technology solutions and production modifications.

• Participate in scheduled monthly maintenance windows and rotating weekend on-call duties.

• Research and propose enhancements to reliability, security, scalability, automation, and operational efficiency.

• Perform additional duties as assigned.

⛳️ Requirements

• Bachelor’s degree in computer science, Information Technology, or a related discipline, or an equivalent combination of education and practical experience.

• Over 5 years of experience managing Windows and Linux server environments.

• Experience in supporting cloud or hybrid-cloud environments.

• Proficiency in administering Microsoft 365 and Active Directory environments.

• Working knowledge of AWS services, including EC2, S3, IAM, and fundamental networking concepts.

• Strong understanding of TCP/IP networking, DNS, DHCP, and LAN/WAN principles.

• Familiarity with Entra ID (Azure AD) and identity/access management practices.

• Experience in supporting backup, recovery, and business continuity initiatives.

• Excellent troubleshooting, analytical, and problem-solving abilities.

• Strong written and verbal communication skills.

• Willingness to participate in an on-call rotation.

• Availability for scheduled monthly maintenance activities.

• Commitment to ongoing training, certifications, and professional development.

• Preferred: Microsoft or AWS certifications.

• Preferred: Experience with Cisco networking and security technologies.

• Preferred: Experience in supporting hybrid Microsoft 365 and AWS environments.

• Preferred: Familiarity with infrastructure security best practices and vulnerability management.

🏝️ Benefits

• Defined contribution pension scheme.

• 403(b) plan.

• Generous paid time off package.

• Insurance plans through leading providers.

• Flexible spending options.

• Tuition reimbursement.

• Opportunities for training.

• Potential for professional growth.

• Competitive salary.

• Innovative organizational culture.