Sr. System Administrator

Tysons Corner, VA - USA

Monthly Salary: Not Disclosed

Posted on: 8 hours ago

Vacancies: 1 Vacancy

Job Summary

Were looking for a Sr. System Administrator with 7-10 years of hands-on experience supporting deploying and maintaining both Linux and Windows-based systems as well as managing networking and virtualization infrastructure. Youll play a key role in ensuring stable secure and scalable environments across both internal operations and external client-facing systems.

This is a hybrid role with the flexibility to work remotely part of the week but youll also be hands-on with hardware in the data center as needed.

What Makes This Role Unique

Tech-forward team: Youll work alongside a sharp passionate group of engineers who love what they do and love sharing what they know. Peer learning is part of the culture.

Choose your own tools: Linux macOS Windows even Amiga or Commodore 64pick your workstation OS. (Yes really.)

Zero fluff full impact: No red tape. No corporate theater. Just real infrastructure challenges room to experiment and support to grow.

High trust high autonomy: Youll be set up for success with the right tools team and environment to do your best work.

In Your First 6 Months Youll:

Deploy and configure Linux systems across production and staging environments
Identify and resolve infrastructure gaps or inefficiencies
Automate manual tasks in collaboration with DevOps using Bash Python or Ansible
Collaborate with the Network & Security team to improve system monitoring and alerting
Produce clear and usable systems documentation (we love diagrams more than essays)

Core Technologies Youll Work With

Operating Systems: Red Hat Ubuntu CentOS Windows Server

Networking: Cisco Juniper VLANs routing protocols VPNs (IPSec Wireguard etc.)

Virtualization & Containers: VMware Docker

Automation & Scripting: Python Bash Ansible

Cloud & Hybrid: AWS Azure

Directory & Authentication: Active Directory DNS Group Policy DFSR

Security Tools: Firewalls (Fortigate Cisco Juniper) MACsec TLS encryption

Endpoint Management: iOS Android Apple/Windows/Linux clients

Qualifications :

Must Haves:

Active Secret Clearance at a minimum
7-10 years managing Windows and Linux systems in production environments
Hands-on experience in data centers: cabling racking hardware setup
Solid networking knowledge (TCP/IP OSI model routing switching)
Experience with firewalls and secure tunneling protocols
A natural curiosity for solving technical problems and learning new tools
A collaborative mindset and strong documentation habits

Nice-to-Haves (But Not Required):

Exposure to compliance-driven or high-security environments (e.g. FedRAMP DoD)
Experience managing mixed OS fleets (Apple Windows Linux)
Familiarity with Infrastructure-as-Code principles

Additional Information :

Why Youll Love Working Here:

Impactful Work: Contribute to projects that drive business success and innovation.
Collaborative Culture: Join a team that values teamwork innovation and shared success.
Career Growth: Access to professional development opportunities mentorship and clear advancement paths.

Here are some Perks of being a Ridgeliner!

Flexible PTO holidays
Generous 401k match benefit up to 10% with an automatic 3% safe harbor contribution and additional matching based on employee contributions.
Medical (HSA & PPO Plans Available) dental vision disability and life insurance
Employer Contribution to Health Savings Account (HSA)
Learning & Development opportunities
Professional coaching services
Get the technology you want to do your job
We have free daily snacks & drinks

Physical Requirements:

Must be able to remain in a stationary position 50% of the time. The person in this position needs to occasionally move about inside the office
Constantly work with computers and other information technology equipment
The ability to communicate information and ideas in a classroom style format may stand at a podium for long periods of time

All your information will be kept confidential according to EEO guidelines.

We are committed to equal employment opportunity regardless of race color ancestry religion sex national origin sexual orientation age citizenship marital status disability gender gender identity or expression veteran status or any other characteristic protected by law. We are proud to be an equal opportunity workplace.

If you require a reasonable accommodation to apply for a position with Ridgeline International through its online applicant system please contact Ridgelines Talent Management Department at or contact us through e-mail at

Remote Work :

Employment Type :

Full-time