Network Systems Engineer

Telos Corporation is hiring a Network & Systems Engineer to support mission-critical infrastructure across on-premises data centers and AWS GovCloud. The role supports, maintains, secures, troubleshoots, and improves network, Windows Server, virtualization, cloud, and cybersecurity environments alongside senior engineers.

Responsibilities

Support the configuration, maintenance, and troubleshooting of Cisco network infrastructure, including switches, routers, VLANs, routing, ACLs, VPNs, and wireless technologies

Troubleshoot common network connectivity issues involving TCP/IP, DNS, DHCP, routing, firewalls, and application communications

Assist with connectivity between on-premises infrastructure, AWS GovCloud, customers, government partners, and external systems

Use network troubleshooting and monitoring tools such as ping, traceroute, PowerShell, Netstat, packet captures, Wireshark, and network management platforms

Assist with maintaining network configurations, diagrams, inventories, technical documentation, and operational procedures

Support installation, replacement, configuration, and troubleshooting of physical network and server equipment

Support Microsoft Windows Server environments, including Active Directory, Group Policy, DNS, certificates, permissions, authentication, and Windows services

Assist with server builds, configuration, patching, upgrades, vulnerability remediation, system hardening, and lifecycle management

Support Microsoft Hyper-V and virtualized server environments

Troubleshoot Windows operating system, authentication, application, and infrastructure issues

Use PowerShell for system administration, troubleshooting, configuration, and basic automation

Assist senior engineers with system upgrades, migrations, deployments, and infrastructure projects

Support AWS GovCloud infrastructure including EC2, VPCs, subnets, route tables, Security Groups, IAM, S3, CloudWatch, CloudTrail, Systems Manager, and related AWS services

Assist with troubleshooting connectivity between AWS GovCloud and on-premises infrastructure

Support Windows and Linux EC2 instances, including patching, monitoring, configuration, and troubleshooting

Assist with AWS networking, security configurations, DNS, certificates, and application connectivity

Learn and support Infrastructure as Code and automation technologies used to deploy and maintain cloud infrastructure

Work with senior engineers to implement infrastructure requirements provided by internal teams, customers, and external partners

Assist with infrastructure security, vulnerability remediation, system hardening, patch management, and configuration management

Support environments operating under federal cybersecurity and compliance requirements

Assist with implementation and validation of security requirements based on standards such as NIST SP 800-53 and DISA STIGs

Work with vulnerability management, SIEM/logging, endpoint security, firewall, and network security technologies

Review vulnerability findings with senior technical staff and assist with remediation and validation

Assist with security assessments, audits, continuous monitoring, incident response, and compliance evidence collection

Maintain technical documentation supporting cybersecurity and compliance requirements

Preferred

Experience with Microsoft Hyper-V, VMware, or another enterprise virtualization platform

Exposure to AWS, AWS GovCloud, Azure, or another cloud platform

Familiarity with AWS services such as EC2, VPC, IAM, S3, CloudWatch, CloudTrail, and Systems Manager

Experience with Cisco switches, routers, wireless infrastructure, or firewalls

Familiarity with PowerShell automation

Experience with vulnerability scanning or management technologies such as Tenable or Nessus

Exposure to SIEM/logging platforms such as Splunk or comparable technologies

Familiarity with NIST SP 800-53, DISA STIGs, continuous monitoring, or other government cybersecurity frameworks

Experience supporting government, regulated, healthcare, financial, or other security-conscious environments

Familiarity with Linux administration

Cisco, Microsoft, AWS, CompTIA, or cybersecurity certifications are preferred but not required

Equivalent hands-on experience, technical training, home labs, military experience, or demonstrated technical ability will be considered

Enterprise Virtualization

Cloud Platforms

AWS Services

EC2

VPC

IAM

S3

CloudWatch

CloudTrail

AWS Systems Manager

Switches

Routers

Wireless Infrastructure

PowerShell Automation

Vulnerability Scanning

Tenable

Nessus

SIEM Platforms

Log Management

Splunk

NIST SP 800-53

DISA STIGs

Continuous Monitoring

Government Cybersecurity Frameworks

Government Environment Experience

Regulated Industry Experience

Healthcare Environment Experience

Financial Industry Experience

Security-Conscious Environments

Linux Administration

Cisco Certifications

Microsoft Certifications

AWS Certifications

CompTIA Certifications

Cybersecurity Certifications

Hands-On Technical Experience

Technical Training

Home Lab Experience

Military Experience

Demonstrated Technical Ability

Benefits

Generous paid time off

Medical

Dental

Vision

Tuition reimbursement

401k

Company

Cybersecurity, cloud, and enterprise security solutions for government and enterprises

Ashburn, Virginia, USA

https://www.telos.com/

Founded in 1971

501-1000 employees

Qualifications

Bachelor's (or equivalent) with 2 - 4 years of progressively responsible experience in network engineering, systems administration, infrastructure engineering, or a comparable technical role

Working knowledge of TCP/IP, subnetting, VLANs, routing, switching, DNS, DHCP, firewalls, and general network troubleshooting

Hands-on experience supporting Cisco or comparable enterprise networking technologies

Experience administering or supporting Microsoft Windows Server environments

Familiarity with Active Directory, Group Policy, DNS, Windows permissions, and authentication

Experience troubleshooting technical issues involving networks, servers, operating systems, or applications

Basic PowerShell or other scripting experience and an interest in developing automation skills

Understanding of common cybersecurity concepts including patching, vulnerability management, least privilege, system hardening, and access control

Ability and willingness to learn new technologies and progressively take ownership of technical responsibilities

Ability to work effectively with senior engineers, technical teams, customers, vendors, and external partners

Strong technical documentation, communication, and problem-solving skills

Must meet applicable U.S. Government personnel security and system-access requirements

Must be able to successfully obtain and maintain a Level 2 Public Trust background investigation/suitability determination as required for access to federal government systems and information

Experience with Microsoft Hyper-V, VMware, or another enterprise virtualization platform

Exposure to AWS, AWS GovCloud, Azure, or another cloud platform

Familiarity with AWS services such as EC2, VPC, IAM, S3, CloudWatch, CloudTrail, and Systems Manager

Experience with Cisco switches, routers, wireless infrastructure, or firewalls

Familiarity with PowerShell automation

Experience with vulnerability scanning or management technologies such as Tenable or Nessus

Exposure to SIEM/logging platforms such as Splunk or comparable technologies

Familiarity with NIST SP 800-53, DISA STIGs, continuous monitoring, or other government cybersecurity frameworks

Experience supporting government, regulated, healthcare, financial, or other security-conscious environments

Familiarity with Linux administration

Cisco, Microsoft, AWS, CompTIA, or cybersecurity certifications are preferred but not required

Equivalent hands-on experience, technical training, home labs, military experience, or demonstrated technical ability will be considered

Bachelor's (or equivalent) with 2 - 4 years of progressively responsible experience in network engineering, systems administration, infrastructure engineering, or a comparable technical role.

Required skills

Enterprise Networking TCP/IP, Enterprise Networking Subnetting, Enterprise Networking VLANs, Enterprise Networking Routing, Enterprise Networking Switching, Enterprise Networking Firewalls, Cisco Networking, Microsoft Windows Server, Active Directory and Group Policy, PowerShell, AWS GovCloud, AWS EC2, AWS VPC, AWS IAM, AWS S3, AWS CloudWatch, AWS CloudTrail, AWS Systems Manager, Virtualization Microsoft Hyper-V, Virtualization VMware, Cybersecurity Vulnerability Management, Cybersecurity System Hardening, Cybersecurity Access Control, NIST SP 800-53 and DISA STIGs, Tenable and Nessus, Splunk, Linux Administration

Preferred skills

Familiarity with PowerShell automation, Familiarity with Linux administration

Experience

2-4 years