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Systems Administrator

Job in Leesburg, Loudoun County, Virginia, 22075, USA
Listing for: Siltt LLC
Full Time position
Listed on 2025-12-03
Job specializations:
  • IT/Tech
    IT Support, Systems Engineer, Systems Administrator, Cloud Computing
Job Description & How to Apply Below

Benefits:

401(k)

401(k) matching

Competitive salary

Dental insurance

Health insurance

Paid time off

Training & development

Tuition assistance

Vision insurance

OVERVIEW:

SILTT is seeking a skilled and motivated Systems Administrator to support the design, implementation, and maintenance of our corporate and development infrastructure. You’ll work with a variety of operating systems, physical and virtual platforms, and infrastructure tools to help ensure our systems are reliable, secure, and performant. As part of a collaborative engineering team, you’ll contribute to project execution, troubleshoot system issues, and help implement improvements across the environment.

If you enjoy solving infrastructure challenges and want to grow your impact in a mission-driven, people-centered organization, we’d love to hear from you.

WHO WE ARE:

At SILTT we’re pushing the limits of infrastructure innovation in the Telecommunications and Information Technology industry. From delivering world-class modular data center facilities to all-hours, 356-day operational response and disaster recovery, our multi-functional team of experts are force multipliers across the infrastructure landscape. We pride ourselves in leading from the front to advise, assist, and accompany our clients through their toughest technological and operational challenges.

We always deliver results (spelled “re-SILTTs”)!

WHY SILTT?

At SILTT, “objective-driven” means first being “people-driven”. As a small business we know that the ability to achieve our mission demands we take care of our own by providing our team members with a variety of benefits that allow them to live fulfilling, healthy, balanced, meaningful lives. That’s why we believe in offering paid healthcare, ultra-competitive 401K matching, accrued paid time off and fixed holiday leave, continuous learning and professional development incentives, and promote a sustainable work-life balance.

A DAY IN THE LIFE:

In this role, you’ll be a critical contributor to the daily operation and ongoing improvement of our infrastructure. You’ll assist with system deployments, manage patching and updates, monitor performance and availability, and respond to incidents to ensure minimal disruption. Your responsibilities will span both reactive support and proactive enhancements, with opportunities to deepen your expertise in automation, scripting, and system-level troubleshooting as part of a collaborative team.

Key responsibilities include, but are not limited to:

System Deployment and Maintenance:

Support the configuration, deployment, hardening, and ongoing monitoring of physical and virtual systems across multiple operating systems, including Linux (RHEL family preferred), Windows, Android, and macOS

Manage the installation and setup of servers, workstations, virtual and cloud infrastructure, in development and production environments

Perform routine updates, patch management, and maintain backups to ensure system integrity and continuity

Participate in planning and execution of infrastructure changes, upgrades, and migrations in coordination with other teams

Networking Support:

Configure and support basic networking components at the system level (e.g., interfaces, DNS, DHCP, static routes, firewalls)

Troubleshoot connectivity issues involving endpoints, servers, and infrastructure

Maintain awareness of system-related networking dependencies and proactively monitor for performance or availability issues

Monitoring and Troubleshooting:

Monitor system performance, resource utilization, and availability using tools such as Nagios, Prometheus, or similar platforms

Respond to and resolve operational incidents by performing diagnostics, applying corrective actions, and escalating as needed

Assist in conducting root cause analysis and post-incident reviews to improve overall system resilience

Document troubleshooting steps, system changes, and support procedures for knowledge sharing and auditabilit

Research and Innovation:

Drive technological advancement by proactively identifying and researching emerging systems, applications

Work closely with leading vendors to evaluate and benchmark candidate solutions, ensuring all new…

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