Cybersecurity Expert

4 days ago

Washington, Washington, D.C., United States Ashburn Consulting Full time
About the Role

Ashburn Consulting, a reputable Small Business in the Washington, DC metropolitan area, seeks an experienced Cybersecurity Expert to provide top-notch network and security solutions in complex environments. This labor category offers senior-level hands-on support on Linux and other open system platforms used by the National Gallery.

Key Responsibilities:

  • Provide day-to-day maintenance of servers in a heterogeneous operating systems environment (Microsoft Windows and Linux), including admin support, patching, and troubleshooting of systems environments. Perform system and application upgrades as new major and minor releases become available.
  • Coordinate and/or participate in meetings with supported customers.
  • Research and propose continuous improvements of the managed environments.
  • Maintain accurate system and technical documentation.
  • Ensure compliance with operational, security, and organizational processes.
  • Analyze cybersecurity vulnerability scan reports and remediate vulnerabilities.
  • Develop and analyze highly complex system standards, thresholds, and recommendations to maximize system performance.
  • Primary work is performed onsite, however, in certain situations, the contractor may have to perform work remotely using NGA-approved remote access capabilities.
  • After-hours remote and/or offsite support for emergency break-fix.
  • Implement and maintain PKI Infrastructures, server certificates, Certificate Authority, Secure DNS (DNS SEC).
  • Perform operating system and VMware administration, account management, and provisioning activity.
  • Install and setup of Enterprise Database systems i.e. Oracle, MySQL, Postgres, and Amazon RDS.
  • Install and maintain the Red Hat Linux Server operating system and various Linux applications and services such as Apache, TomCat, Kerberos, LDAP, MySQL, Satellite Server, Bind, and Postfix.
  • Install and maintain security agents (McAfee/Trellix, Fireeye, Azure Arc, Microsoft Sentinel).
  • Configure and maintain syslog forwarding and log consolidation.
  • Maintain administrative scripts utilizing Bash, Python, Java, and Perl.
  • Configure and maintain scheduled Linux workload using CRON.
  • Perform server and device network setup and troubleshooting in a large enterprise environment.
  • Perform setup, administration, and maintenance of open-source technologies such as Puppet and Ansible.
  • Perform changes as required and respond to outage resolution requests promptly.
  • Provide asset management activities.
  • Manage Amazon Web Services Cloud Services assets.
About You

We are seeking a highly skilled and experienced individual with a strong background in Linux and open systems administration. The ideal candidate will have at least 5 years of hands-on experience supporting responsibilities specified in the scope of work section.

The successful candidate will possess certifications in supported technologies or demonstrable hands-on working knowledge. They will also have experience supporting an infrastructure consisting of at least 300 Linux Servers on-premises and cloud-based (preferably Amazon Web Service) environments.

In addition to technical skills, the candidate will have excellent communication and customer-focused skills, with experience working in a high-velocity multi-tasking operational environment.

Requirements
  • At least 5 years of hands-on experience in Linux and open systems administration.
  • Certifications in supported technologies or demonstrable hands-on working knowledge.
  • Experience supporting an infrastructure consisting of at least 300 Linux Servers on-premises and cloud-based (preferably Amazon Web Service) environments.
  • Bachelor's degree in computer science/engineering preferred.
  • 8+ years' experience working with computer hardware, operating system software, and desktop applications with a specific concentration in one or more areas.
  • Experience working with one or more structured programming languages highly desired.
  • 2+ years' experience working with design principles and applications preferred.
  • Experience with implementing and maintaining PKI Infrastructures, server certificates, Certificate Authority, Secure DNS (DNS SEC) preferred.
  • ITIL experience or certification preferred.
  • 3+ years' experience administering Amazon Web Services Cloud required.
  • 3+ years' experience in system administration, including installation and configuration of Red Hat Enterprise Linux systems: Red Hat Enterprise Linux 6 (64-bit), Red Hat Enterprise Linux 7 (64-bit), Red Hat Enterprise Linux 8 (64-bit), and Other Linux Distributions (64-bit).
  • 3+ years' experience in effectively deploying, managing, and operating the AWS platform.
  • RHCSA or RHCE in version 8 or version 9 preferred.
  • AWS Certified SysOps Administrator Associate preferred.
  • AWS Certified DevOps Engineer Professional preferred.
  • Experience working with monitoring tools SolarWinds, Nagios/Cacti, and WhatsUp Gold a plus.
  • Experience performing backup/recovery operations and Disaster Recovery testing using Veritas NetBackup, N2WS CPM, Cohesity, AWS Backup, or equivalent products.
  • Experience maintaining a Digital Asset Management system a plus.

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