Linux System Administrator
BlueHalo
- Chantilly, VA
- Permanent
- Full-time
- Establish Standard Operating Procedures for all NOC activities
- Ensure all deployed systems are operational and accessible by end-users
- Quickly and appropriately respond to network outages and security incidents
- Configure and manage NOC monitoring dashboards, alerting, and coordinated response
- Review and audit system logs daily
- Interface with customers to resolve system issues and access requests
- Perform system troubleshooting and escalate when appropriate
- Coordinate and execute system updates
- Thoroughly document all actions, incidents, and findings to include monthly reporting
- Assist with implementing automated monitoring and alerting systems
- Routine monitoring and integrity verification of system backup
- Conduct periodic vulnerability scans to ensure compliance with system specifications
- Provide feedback to software developers on system performance, issues, and customer experience
- Proactively communicate with team members and management
- Continually monitor trends in the IT industry for new products and security advisories to better protect deployed system capabilities
- You must be a U.S. Citizen
- Bachelor’s degree in information technology (or a related field) or equivalent hands-on experience
- Willingness to support end-users to include after hours on-call support
- A security-minded approach to all engineering and administration efforts
- Strong communication skills, (both written and verbal) and technical documentation skills
- Detail-oriented and critical thinking mindset
- Log analysis and system auditing (2 years)
- Linux system administration (3 years)
- Network administration (2 years)
- Network functional status monitoring and alerting (2 years)
- 3-5 years’ experience as a Linux System Administrator
- SECRET (or TOP SECRET) security clearance
- NOC/SOC Experience
- Splunk (Including development of searches, reports, and dashboards)
- Zabbix
- Grafana
- DevOps – Ansible or similar toolset
- Network and Host based IDS Systems
- Netflow analysis
- Python and Bash scripting
- Network analysis and troubleshooting tools (i.e., Wireshark and tcpdump)
- Vulnerability and compliance scanning with Nessus and other toolsets
- Familiarity with Virtualization Technologies such as VMware and Proxmox
- Understanding of VPN Technologies such as IPsec or OpenVPN
- Understanding of SSL/TLS configurations and certificate management