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# Linux Systems Engineer

- **Company:** NIGHTWING LLC
- **Location:** Sterling, VA, United States
- **Salary:** $122,000.0 - $253,000.0
- **Contract:** Permanent contract
- **Skills:** IEEE 802.1Q, Link Aggregation (Ethernet), Amazon Web Services, Computing Platforms, Microsoft Azure, Bash Shell, Ubuntu (Operating System), Configuration Management, Computer Networks, Continuous Integration, Debian Linux, Linux, Network Address Translation, Document Management Systems, Trunking, Monitoring of Systems, Internet Protocol Security (IP SEC), Virtual Private Networks (VPN), Network Security, Routing, Open Shortest Path First (OSPF), OpenVPN, Performance Tuning, Public Key Infrastructure, Red Hat Enterprise Linux, Remote Access Technology, Tcpdump, Wireshark, Virtual Local Area Networks, SSL Certificate Management, Google Cloud, Saltstack, Git, Containerization, Infrastructure Automation Frameworks, Information Technology, Iptables, Patch Management, Firewall Services Module, Docker
- **Published:** October 15, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9241924/linux-systems-engineer

## About the Role

* Associate or Bachelor's degree in Computer Science, Information Technology, or related field; OR equivalent combination of technical training and hands-on experience

Technical Skills:

 * Operating Systems: Strong hands-on experience with Debian and Ubuntu Linux

 * Networking: Experience with dynamic and static routing, VLANs, trunking, NAT and firewall policies

 * VPN: Experience with WireGuard, OpenVPN 2.6+, IPSec, PKI and certificate management.

 * Automation & Scripting: Experience with Bash, Git, and CI/CD workflows

Professional Skills:

 * Exceptional troubleshooting and root-cause analysis capabilities

 * Strong documentation and technical writing skills

 * Ability to operate independently in mission-critical environments

 * Security-first mindset with strong infrastructure design principles

 * Excellent collaboration and communication skills

PREFERRED QUALIFICATIONS

 * Experience supporting cloud platforms including Google Cloud Platform (GCP), Amazon Web Services (AWS), and Microsoft Azure

 * Experience with container technologies including Docker and Kubernetes

 * Experience supporting confidential computing environments

 * Industry certifications such as RHCE, LFCE, CCNP, or equivalent advanced certifications

## Description

Roka Security is seeking a highly skilled Linux Systems Engineer to design, deploy, optimize, automate, and support large-scale Linux infrastructure supporting secure networking and remote-access services. This role is ideal for an engineer with deep expertise in Linux networking, policy-based routing, infrastructure automation, and modern VPN technologies including WireGuard, OpenVPN, and IPSec. The successful candidate will collaborate closely with engineering, systems administration, and platform engineering teams to deliver highly available, secure, and scalable infrastructure solutions in mission-critical environments., Linux Infrastructure Engineering:

 * Design, deploy, administer, and maintain enterprise Linux environments

 * Develop standardized operating system configurations and hardened baseline builds

 * Perform operating system upgrades, patch management, lifecycle maintenance, and performance optimization

 * Troubleshoot complex operating system, networking, and application issues

Network Engineering:

 * Configure and troubleshoot OSPF and static routing, VLANs, LACP, 802.1Q trunking, network namespaces, VRFs, NAT and firewall policies

 * Analyze and troubleshoot network traffic using tcpdump, Wireshark, iproute2, nftables, and iptables

 * Design, deploy, and support secure VPN infrastructures using OpenVPN 2.6+, WireGuard, and IPSec

 * Troubleshoot encryption, routing, MTU, and performance issues while implementing modern cryptographic standards and VPN hardening best practices

Configuration Management & Automation:

 * Automate system provisioning, configuration deployment, compliance enforcement, VPN deployments, and security baseline management

 * Integrate SaltStack with CI/CD pipelines and infrastructure monitoring platforms

Collaboration and Documentation:

 * Collaborate with cross-functional teams to support project initiatives and resolve technical issues

 * Document system configurations, procedures, and troubleshooting steps for knowledge sharing and training purposes

 * Contribute to knowledge base articles and best practices documentation