INflow Federal

Linux Systems Administrator

Posted Yesterday

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Portsmouth, VA

In-Office

Senior level

Cloud • Information Technology • Cybersecurity

The Role

The Linux Systems Administrator will maintain and support Unix/Linux systems, ensure operational readiness, manage user access, and collaborate with various teams to uphold security standards.

Summary Generated by Built In

At INflow Federal, we’re not just building infrastructure—we’re shaping the future of national defense. We design and engineer secure, intelligent systems that empower mission success through the seamless integration of human insight and machine capability. With deep roots in Department of Defense (DoD) networks and a commitment to operational excellence, we deliver infrastructure that fuels advanced analytics, AI/ML, and data-driven decision-making at scale. Every project is an opportunity to tackle complexity head-on and build solutions that make a real-world impact. Join INflow and help lead the charge toward a smarter, more connected defense landscape.

About This Position:

INflow Federal is seeking a Linux Systems Administrator to support our Navy program. NNSY’s mission is to safely return warships to the Fleet on time and within budget. The Systems Administrator will support the administration, maintenance, and operation of enterprise IT systems and infrastructure, ensuring secure, reliable, and compliant system operations in support of shipyard and Fleet readiness.

Here, your work is more than a job—it's a journey in innovation. With opportunities to work on high-impact projects, access to the latest technologies, and a culture that thrives on creativity and collaboration, INflow Federal is where your expertise can truly make a difference.

Job Responsibilities

Administer, configure, and maintain Unix/Linux operating systems in classified and unclassified environments.
Perform system patching, upgrades, hardening, and vulnerability remediation in accordance with DISA STIGs.
Monitor system performance, logs, and alerts; troubleshoot and resolve system and network issues.
Manage user accounts, access controls, and system permissions.
Support backups, disaster recovery, and system restoration activities.
Provide Tier II/III support and participate in after-hours or surge operations as required.
Maintain system documentation and support change management processes.
Collaborate with network, cybersecurity, and engineering teams to support operational requirements.

Required Skills

Demonstrated experience supporting secure networks and mission-critical systems.
Experience applying DISA STIGs and DoD cybersecurity policies to Unix/Linux systems.
Strong troubleshooting skills and experience providing Tier II/III system support.
Familiarity with network services, system monitoring tools, and enterprise backup solutions.

Education & Certification Requirements

Bachelor’s degree in an IT-related discipline
Seven (7) years of experience administering Unix/Linux systems in enterprise or DoD environments.

Clearance Requirements

DoD Top Secret clearance is required.

About INflow Federal

Founded in 2013, INflow Federal is a mission-driven small business delivering cutting-edge solutions in Network Modernization, Cybersecurity, and Data Modernization to support Joint Force operations across 20+ states. We’re proud to serve customers like the U.S. Navy, Marine Corps, and other federal agencies.

Our strength comes from our people—especially the Veterans who make up over 50% of our workforce. Through our Veteran Outreach Program and employee-first culture, we invest deeply in professional growth, well-being, and innovation.

Known for our agility, transparency, and integrity, INflow combines real-world experience with emerging technologies like AI/ML to help our customers lead in a rapidly evolving defense landscape. We empower both our employees and mission partners to stay ahead—driving smarter, faster, and more secure outcomes.

Citizenship Requirements

* Please note that INflow Federal is a defense contractor. Pursuant to our government contracts, candidates must be US Citizens to be considered for employment.

Other Notes

- Some travel may be required: Must have valid driver’s license and transportation. This is subject to change at the direction of the customer.

Other:

- Candidate must have the ability to lift up to 50 lbs.

Must have willingness to perform duties not listed in the job description as required by INflow and our customer.

Equal Opportunity Employer

Diversity and Inclusion

INflow provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.

This commitment applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, leaves of absence, compensation, and training. Job applicants and employees are evaluated solely on job-related qualifications and experience.

Top Skills

Cybersecurity Policies

Disa Stigs

Enterprise Backup Solutions

System Monitoring Tools

Unix/Linux

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The Company

Ashburn, , Virginia

44 Employees

Year Founded: 2013

What We Do

INflow Federal was founded in 2013. The “INflow difference” begins with a simple belief encompassing the importance of employee culture. We are obsessed with our people and have demonstrated year-over-year that our employee-focused approach leads to customer success.

As a leading Small Disadvantaged Business (SDB) innovator, we offer proven expertise in Network Modernization, Cybersecurity, Digital Modernization and Joint Force Mission Operations. We serve our federal government customers in over 20 states domestically to include the United States Navy (USN), United States Marine Corps (USMC), National Reconnaissance Office (NRO) and Joint Forces.

At INflow, US Military Veterans have continuously paved the path ahead for our customers. We developed a homegrown “Veteran Outreach Program” focused around attracting and hiring transitioning military personnel and has resulted in veterans representing over 50% of our company.

Simplifying the customer experience requires everyone within our organization to work together. Our leadership communicates transparently with our team on a regular basis with a commitment to do the right thing for all those we serve. Our customers recognize doing business with INflow means working with people who consistently deliver with agility, passion and integrity.

This is how INflow continues to evolve, grow and accompany our customers into the future of mission systems and operations.

Visit us at www.INflowFed.com.