> Markdown version of [/jobs/ext/901954-systems-administrator](https://www.wearedevelopers.com/jobs/ext/901954-systems-administrator). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Systems Administrator

- **Company:** Dexian Signature
- **Location:** McLean, VA, United States
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Application Lifecycle Management, Unix, Cisco PIX, Cyber Security, Information Systems, Databases, System Configuration, Dynamic Host Configuration Protocol, Domain Name System (DNS), Network Troubleshooting, System Center Configuration Manager, Windows Servers, Network Administration, Web Application Security, Software Systems, SQL Databases, VMware Infrastructure, Firewalls (Computer Science), Wsus, Cisco, Vmware
- **Published:** June 30, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9003614/systems-administrator

## About the Role

Required Clearance: TS/SCI with Poly; This position requires ability to satisfy a government administered high risk screening., ·Experience installing and configuring Windows 10; installing and configuring Windows Server 2012; configuring Advanced Server 2012 Services.

·Windows/UNIX Systems Administration experience to include Active Directory Domain Services (DNS, DHCP, GPO Management) as well as Active Directory Certificate Services.

·Candidate must have a total of 12 years of applicable experience. The experience can be a combination of degree and work history. This can be a High School degree and 12 years of work history OR an Associate's and 10 years, a Bachelors' and 8 years, a Masters and 6 years or a PhD and 2 years of work history.

Desired Qualifications/Certifications:

Security+ CompTIA commercial certification (or higher, such as CISSP, etc.).

Windows and UNIX/Linux. VMware

## Description

·Perform IT Systems Administration on physical and virtual infrastructure with a focus on firewall, email, and web security protocols.

·Ensure cyber security and OPSEC policies, principles, and practices are an integral element of the operating environment.

·Integrate hardware and software components within the systems environment. Continually monitor and fine-tune performance of the Information Systems.

·Conduct analyses of network usage, user complaints, traffic interruptions, hardware and software capabilities, and other relevant factors.

·Provide database support for SQL databases related to mission specific applications services including service life-cycle maintenance of databases, implementing reporting features, correcting database errors, modifying databases performing upgrades, and user training.

·Configure and manage WSUS/SCCM for patching and application management; Network Administration: Configure, manage, and troubleshoot networking issues with Cisco ASA, Cisco Fiber and Lan switching (Layer 2 and 3)


## Related Videos

- [Hacking MSSQL on Cloud. All of them. How I became sysadmin on Azure, AWS, GCP and Alibaba.](https://www.wearedevelopers.com/videos/100339-hacking-mssql-on-cloud-all-of-them-how-i-became-sysadmin-on-azure-aws-gcp-and-alibaba)
- [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team)
- [WeAreDevelopers LIVE - Node and Package Security](https://www.wearedevelopers.com/videos/2138-wearedevelopers-live-node-and-package-security)
- [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure)
- [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy)
- [The Time Paradox: Building Timezone-Safe Python/Django Applications](https://www.wearedevelopers.com/videos/1915-the-time-paradox-building-timezone-safe-python-django-applications)

## Related Articles

- [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers)
- [Dev Digest 183: End of Win10, a Bus Factor of 0, "Call" Explained](https://www.wearedevelopers.com/magazine/624-dev-digest-183-end-of-win10-a-bus-factor-of-0-call-explained)
- [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology)
- [Dev Digest 191: Malware interviews, EU ❤️ Open Source and Skilled Agents](https://www.wearedevelopers.com/magazine/645-dev-digest-191-malware-interviews-eu-open-source-and-skilled-agents)
- [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)
- [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer)