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Full-time
Posted 27d ago
~40 hrs/week
Responsibilities
Design, deploy, and optimize large-scale Linux infrastructure with a focus on secure networking and remote-access services. Automate system provisioning and configuration management using SaltStack while tuning kernel performance for high-throughput environments.
Requirements
Requires a Top-Secret clearance with SCI eligibility and over 5 years of Linux systems engineering experience. Must demonstrate deep expertise in advanced Linux networking, VPN technologies, and SaltStack automation.
Full job description
Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in the intelligence community, defense, civil, and commercial markets.
Nightwing 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, kernel performance tuning, infrastructure automation, and modern VPN technologies including WireGuard, OpenVPN, and IPSec.
The successful candidate will collaborate closely with network engineering, systems administration, and platform engineering teams to deliver highly available, secure, and scalable infrastructure solutions in mission-critical environments.
Primary Responsibilities
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.
Advanced Network Engineering
Design and implement advanced routing architectures utilizing:
Policy-Based Routing (PBR)
Multiple routing tables
Route maps and traffic steering
Source-based and destination-based routing
Multi-homed network environments
Configure and troubleshoot:
OSPF and static routing
VLANs, LACP, and 802.1Q trunking
Network namespaces
VRFs
NAT and firewall policies
Analyze and troubleshoot network traffic using:
tcpdump
Wireshark
iproute2
nftables
iptables
Linux Kernel Tuning & Performance Optimization
Tune Linux kernel parameters for:
High-throughput networking
Low-latency applications
VPN gateway performance
Large-scale concurrent connections
Optimize:
TCP/IP stack performance
Network buffer sizing
IRQ balancing
CPU affinity
NUMA awareness
Memory management
Utilize performance analysis tools including:
perf
sar
vmstat
iostat
eBPF observability tools
systemd performance metrics
VPN Engineering
Design, deploy, and support secure VPN infrastructures using:
OpenVPN 2.6+
WireGuard
IPSec
Implement and support:
Site-to-site VPNs
Remote-access VPNs
Hub-and-spoke architectures
High-availability VPN clusters
Dynamic routing across VPN overlays
Responsibilities include:
Troubleshooting encryption, routing, MTU, and performance issues
Implementing modern cryptographic standards and VPN hardening best practices
Configuration Management & Automation
Develop and maintain Infrastructure-as-Code (IaC) solutions using SaltStack.
Create and maintain:
Salt States
Pillars
Custom modules
Orchestration workflows
Automate:
System provisioning
Configuration deployment
Compliance enforcement
VPN deployments
Security baseline management
Integrate SaltStack with CI/CD pipelines and infrastructure monitoring platforms.
Required Qualifications:
Current Top-Secret Clearance with SCI Eligibility
Technical Experience
5+ years of Linux Systems Engineering experience
3+ years of advanced Linux networking experience
3+ years of VPN engineering experience
3+ years of SaltStack administration and automation experience
Knowledge of CNSA-compliant cryptographic implementations
Familiarity with eBPF-based observability and network diagnostics
Industry certifications such as:
RHCE
LFCE
CCNP
Equivalent advanced certifications
Desired Skills
Exceptional troubleshooting and root-cause analysis capabilities
Strong documentation and technical writing skills
Ability to operate independently in mission-critical environments
Experience designing highly available and fault-tolerant systems
Security-first mindset with strong infrastructure design principles
Excellent collaboration and communication skills
Salary & Benefits
The salary associated with this position ($99,000-$206,000) is commensurate with the selected candidate’s qualifications, years of relevant experience, and demonstrated level of expertise. Compensation will be determined based on these factors to ensure alignment with skills, responsibilities, and market standards.
Nightwing offers medical, vision and dental insurance coverage in addition to a 401k plan, PTO, Holidays, and additional insurances.
Nightwing is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.
Based on 7845 listings with disclosed salaries, most engineering jobs in Virginia pay between $81k–$201k per year. Individual offers vary with seniority, company size, and specialization.
How many Engineering jobs are open in Virginia right now?
There are currently 12,648 open engineering positions in Virginia listed on Clera. New openings are added daily as companies post roles.
Which companies are hiring for Engineering roles in Virginia?
Companies currently hiring include Amazon, Booz Allen Hamilton, Capital One, CACI International Inc, Ingalls Shipbuilding, a Division of HII, among others. Browse the listings above to see every active employer.
Are there remote or hybrid Engineering jobs in Virginia?
Yes — 2665 of the 12648 open engineering positions offer remote or hybrid work (795 remote, 1870 hybrid).
How do I apply for Engineering jobs in Virginia?
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.