Linux Systems Network Engineer - HYBRID

The Josef Group; Sterling (VA); Hybrid; USD 200,000 - 230,000; Full time

Job summary

The Josef Group in Sterling, VA is seeking a Linux Systems Network Engineer to design, deploy, and support secure distributed networks for government spaces. Hybrid work 2–3 days per week.

You will manage Linux environments, build cloud-based infrastructure, and analyze network traffic using Wireshark and related tools, reporting progress to program managers and government customers. The role emphasizes autonomous prioritization, rigorous security, and reliable connectivity across local and

Qualifications

• Proven ability to manage and troubleshoot Linux environments with a focus on secure and optimized network setups.
• Experience securely launching and configuring virtual cloud machines via SSH on major clouds.
• Strong command of Linux shell tools, especially Bash, for automation.
• Proficient in capturing and filtering network data with Wireshark, tshark, python-scapy, libpcap.
• Solid understanding of network operations and exploitation tactics (CNO).
• Experience managing attribution networks for secure routing, monitoring, troubleshooting.
• Distributed network troubleshooting across local and remote tunnels.

Responsibilities

• Design, develop, test, and deploy operational networks in collaboration with government personnel and contractors.
• Prioritize tasks independently and report status updates to program managers and government customers.
• Secure Linux systems and configure firewall rules with iptables and nftables.
• Monitor and troubleshoot network traffic and routing across distributed environments.
• Produce timely status and performance metrics for stakeholders.

Skills

Linux administration

Network administration

Bash scripting

Cloud networking

Security best practices

CNO

Firewall hardening

Routing verification

Independent prioritization

Tools

Wireshark

tshark

python-scapy

libpcap

SSH

AWS

Azure

Oracle Cloud

iptables

nftables

Job description

Linux Systems Network Engineer
Sterling, VA
This position allows 2 to 3 days of hybrid flexibility per week.
$200K-$230K

This position requires a highly skilled technical professional to support the design, development, testing, and deployment of operational networks in collaboration with government personnel and other contractors. The candidate must be able to work seamlessly within government spaces and independently prioritize tasks in a time-effective manner while reporting status updates to both internal program managers and government customers.

• Linux SystemsandNetworkAdministration:Proven ability to manage and troubleshootLinuxenvironments with a focus on secure and optimizednetworksetups.

Cloud Environment Setup:Skilled in securely launching and configuring virtual cloud machines over SSH on platforms like AWS, Azure, or Oracle Cloud.

Command-Line Expertise:Strong command ofLinuxshell tools, especially Bash, forsystem administrationand scripting to automate tasks.

NetworkTraffic Analysis:Proficient in capturing and filteringnetworkdata using tools such as Wireshark, tshark, python-scapy, and libpcap.

CyberNetworkOperations (CNO):Solid understanding ofnetworkoperations and exploitation tactics.

Secure Routing Networks:Experience managing attribution networks for secure routing, monitoring, and troubleshooting.

DistributedNetworkTroubleshooting:Skilled in diagnosing issues across distributed networks, includingsystemscommunicating via local and remote tunnels.

LinuxSecurity and Firewall Configuration:Adept at hardeningLinux systemsand crafting firewall rules with iptables and nftables.

Packet Routing Verification:UsesLinuxtools to verify correct packet routing from source to destination.