Network Engineer

castaliasystems; Arlington (VA); On-site; USD 125,000 - 135,000; Full time

Benefits offered by this job

Medical, dental, vision coverage

401k matching

Generous PTO

Job summary

Castalia Systems is seeking a network engineer to implement, maintain and support the lab network infrastructure for onsite incident response to government cyber incidents and rapid restoration of services.

The role requires designing and maintaining network environments, configuring routers, switches, firewalls, VPNs, and VDI platforms (Citrix, VMware), plus enforcing security best practices and SOPs in lab environments.

Qualifications

• BS/HS degree with years of relevant experience in network administration.
• 5+ years of directly relevant experience in network administration.
• Proficiency with Linux/Unix and MacOS.
• Experience with routers, switches, firewalls, and VPNs.
• Experience with virtual desktop environments (Citrix, VMware).

Responsibilities

• Design and implement infrastructure solutions to support mission execution.
• Support integration of new technologies in lab environments and SOPs.
• Assess network topology and configurations, identify vulnerabilities, recommend best practices.
• Provide user support for VPNs and VDI platforms (Citrix, VMware).
• Troubleshoot a broad range of network issues from basic to complex.
• Implement access controls, monitor performance and backups, ensure security.
• Diagnose and resolve storage-related network issues across LAN/WAN.
• Design, build, and maintain network environments with routers, switches, firewalls.
• Collaborate with stakeholders to optimize infrastructure and standards.
• Harden network devices and infrastructure for security.

Skills

Network administration

VPN configuration

Linux/Unix

MacOS

Citrix

VMware

Security best practices

Education

BS in CS/CE/IS or related field; or HS Diploma + 7+ years experience

Tools

Citrix

VMware

Cisco IOS

Palo Alto

Job description

Job Type: Full- Time

Workplace Type: Onsite

Clearance: Secret with ability to get a DHS Suitability

Must be a U.S. Citizen

Job Summary

Castalia Systems is supporting a U.S. Government customer to provide support for onsite incident response to civilian Government agencies and critical asset owners who experience cyber-attacks, providing immediate investigation and resolution. Contract personnel perform investigations to characterize of the severity of breaches, develop mitigation plans, and assist with the restoration of services. Castalia is seeking a motivated network engineer to implement, maintain and support the lab network infrastructure.

Roles and Responsibilities

A qualified candidate will perform the following duties and responsibilities, but are not limited to:

• Leverage advanced analytical and technical skills to design and implement infrastructure solutions that enhance mission execution and support command decision-making.
• Support the integration of new technologies and equipment within lab environments, including development and refinement of standard operating procedures (SOPs) and policies.
• Assess network topology and device configurations, identify critical security vulnerabilities, and recommend security best practices.
• Provide user support for Virtual Private Networks (VPNs), Virtual Desktop Infrastructure (VDI) such as Citrix, as well as MacOS and iOS platforms.
• Troubleshoot and resolve a broad range of technical issues, from basic to complex network problems
• Implement granular access controls, monitor system performance and accessibility, establish and maintain backup protocols, and ensure system security.
• Diagnose and resolve complex enterprise storage issues across local and wide area networks, including replication strategy support and remediation of storage-related incidents.
• Design, build, and maintain robust network environments by configuring routers, switches, and firewalls, as well as updating network devices and performing IP address audits.
• Ensure optimal network performance by troubleshooting issues, enforcing system standards, and collaborating with stakeholders to optimize infrastructure.
• Secure network systems through policy enforcement, access controls, and continuous monitoring.

Required Qualifications

• BS Computer Science, Computer Engineering, Computer Information Systems, Computer Systems Engineering or related degree; or HS Diploma and 7+ years network administration, network engineering or systems administration experience.

• 5+ years of directly relevant experience in network administration
• Proficiency with multiple operating systems, including Linux/Unix and MacOS
• Strong knowledge and experience with routers, switches, firewalls, and VPNs
• Experience and knowledge of networking and network administration
• Skilled in working with virtual desktop environments (Citrix, VMware)
• Must be able to work collaboratively across physical locations

Preferred Qualifications

• TS/SCI clearance
• Familiarity with Palo Alto firewalls and Cisco switches
• Experience with converged infrastructure solutions (e.g., FlexPod) and NetApp storage systems
• Proficiency with Cisco Intersight, vCenter, and virtualization automation/optimization
• Strong documentation skills for technical procedures and SOPs
• Capable of creating and maintaining network diagrams
• Demonstrated experience in network design, implementation, and performance tuning
• Project management capabilities and excellent time-management skills
• Expertise in hardening network devices and infrastructure for enhanced security
• DoD 8140.01 IAT Level II
• Network+
• CCNA

Physical Requirements/Work Environment

• Normal office environment.

Travel

• As required

Company Description

Castalia Systems is a proven business partner providing mission critical solutions to the Federal Government. We provide cutting edge solutions from Securing and Managing Data to Systems Engineering and Development. Castalia Systems is a pioneer in Artificial Intelligence Design and Application.

With our vast knowledge of our customers’ needs and relevant technology, our team is able to bring successful solutions to every mission. We are one-upping our competitors by providing premium IT solutions and platforms with cutting-edge technology so it’s so evident when you compare us with anyone.

Compensation

At Castalia Systems, we provide you with opportunities and choices and support your total well-being. Our benefits include: Medical, dental, vision coverage, 401k matching, generous PTO, paid holidays, professional training opportunities, and even pet insurance to ensure your furry friends are cared for too. All regularly scheduled employees working at least 30 hours per week are eligible to participate in Castalia Systems’ benefit programs. Individuals that do not meet the threshold are only eligible for select offerings, not inclusive of health benefits.

Salary at Castalia Systems is determined by various factors, including but not limited to location, position knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements. The projected compensation range for this position is $125,000.00 to $135,000.00 (annualized USD). The estimate displayed represents the typical salary range for this position and is just one component of Castalia Systems’ total compensation package for employees.

Disclaimer

Castalia Systems is an equal employment opportunity and affirmative action employer and strives to comply with all applicable laws prohibiting discrimination based on race, color, creed, sex, sexual orientation, age, national origin, or ancestry, physical or mental disability, veteran status, marital status, HIV-positive status, as well as any other category protected by federal, state, or local laws. All such discrimination is unlawful, and all persons involved in the operations of the company are prohibited from engaging in this type of conduct.