Linux Systems Administrator – DCO Field Team

PUNCH Cyber Analytics Group; Great Falls Crossing (VA); Remote; USD 90,000 - 130,000; Full time

Job summary

A leading cybersecurity company is seeking an experienced Linux Systems Administrator. In this role, you will support DCO sensor platforms in tactical settings, requiring strong Linux skills and the ability to work under pressure. The position entails travel and offers remote work during non-deployment periods.

Qualifications

• 7+ years administering Linux systems in production or field conditions.
• Must be a US citizen with a valid US passport.
• DoD 8570 IAT Level II certification preferred.

Responsibilities

• Maintain and support DCO sensor platforms in tactical environments.
• Configure and troubleshoot Linux-based systems.
• Conduct system hardening and documentation.

Skills

Linux Systems Administration

Bash Scripting

Python Scripting

Containerization

Diagnostic Skills

Tools

Docker

Podman

Zeek

ELK Stack

Suricata

Job description

About PUNCH:

We’re problem solvers first & foremost. PUNCH’s origin story involves frustration with available INFOSEC tools and techniques—we came up thru the industry using these inefficient tools and techniques and decided there had to be a better way. We bring this laser focus on efficiency to every customer engagement.

We have trust as a hallmark in everything we do. PUNCH provides its team members with the maximum amount of ownership over their careers, the direction of the company, and the flexibility & freedom to accomplish their job without interference. Trust requires accountability; we live that, company-wide.

We back each other up. PUNCH is a supportive place to work. We’ve worked hard to create an environment that makes people better, encourages team work, and rewards a “pitch in” mentality.

We give back. To those in need. To the community. To the industry.

Does this sound like you?

In this Role You Will:

Maintain and support DCO sensor platforms as part of a mobile field team operating in tactical environments.

- Configure and maintain Linux-based systems (CentOS, Ubuntu)
- Troubleshoot software, hardware, and container issues in isolated setups
- Script with Bash and Python for automation and diagnostics
- Conduct system hardening, licensing, and pre-mission readiness checks
- Support after-action reviews and technical documentation

Key Requirements:
- 7+ years administering Linux systems in production or field conditions

-Must be a US citizen and possess a US passport

- Experience with containers (Docker, Podman)
- Familiarity with DCO tools like Zeek, ELK Stack, Suricata
- Ability to operate without remote support in disconnected environments
- DoD 8570 IAT Level II certification preferred

Must Haves:
Strong diagnostic and Linux skills; capability to work in high-stress, dynamic field conditions.

Security Clearance:
TS with SCI eligibility required.

Travel Requirements:
8–12 weeks annually, CONUS and OCONUS, potentially with short notice.

Remote work is available during non-deployment periods.